granab subfloor systemsgranab.se/oldsite/engelsk/download/katalog_gb.pdf · granab subfloor systems...

GRANAB SUBFLOOR SYSTEMS

For environmentally friendly and quieter indoor environments with comfortable flooring in homes, offices, schools and public buildings.

Vers

ion

7. O

ctob

er 2

008

Lay

out:

blom

ill.s

e

Pri

ntin

g: R

ydin

s Tr

ycke

ri A

B

GRANAB manufactures subfloor systems for homes, offices,

schools and public buildings. The systems feature steel

floor girders with dampening elements for effective impact

and airborne sound insulation.

Granab subfloor systems are patented and type-approved

with respect to sound-dampening properties, dynamic loads

and strength. About 4 million m2 have been installed in vari-

ous projects. Granab's main office is in Vårgårda, Sweden

with production facilities in both Vårgårda and Lindköping.

Welcome to Granab AB

2 3

Bygg- och Miljöteknik Granab ABPhone: +46 (0) 322-66 76 50 Fax: +46 (0) 322-66 76 55

E-mail: [email protected] www.granab.se

Mailing address: P.O.Box 172 SE-447 24 Vårgårda Sweden

Street address: Verkstadsgatan 4 Vårgårda, Sweden

2 3

CONTENTS:Granab Subfloor Systems 4–5

System 3000 System 7000

Planning instructions 8–9 Testing, certification, approval 10–11

Material properties Alternative floor coverings

Tiled surfaces, bathrooms 14

Bathroom modules 15 Planning

Comfort-adapted deflection 18–19

Impact and airborne sound insulation 20–21

Impact sound reduction in the lab 22–23

Sound insulation measurementsSubfloor HD/F 270 mm, System 3000 24Subfloor HD/F 185 mm, System 3000 25–26Subfloor HD/F 270 mm, System 7000 27

Offices, public buildings Sound insulation, comfort-adapted floors 28 Planning, electrical – datacom – telecom 29

Ventilated subflooring Floor heating

Installation tools, accessories 35

Material specifications

Detailed solutions, installation

Examples of projects 38–39

2 3

Materials, environmental impact, durability 12

Load capacity, c/c distances, girders

System information, dimensions, design 6

System information, dimensions, design 7

Chipboard & carpet, chipboard & parquet,

Moisture, mould, radon 30–31

Addition of levels to existing

structures, attic conversions,

wooden subfloors 34

Waterborne floor heating 32Recessed convectors 33

Systems 3000 and 7000 36

High level, plastic film, door openings 37

parquet, tiles 13

Drawings, delivery optimisation andinstallation drawings 16–17

2 3

Granab subfloor systems provide many benefits:

Granab subfloor systems are constructed with non-deformable floor girders of galvanised steel and an effective sound-dampening resilient system. The subfloor system is secured to the subflooring with screws and set at the desired height. Surface flooring of either parquet, chipboard and parquet, or carpet is laid over the subfloor system. The Granab system contributes to improving the quality and environmental friendliness of homes, schools and public buildings.

4 5

System 3000

System 7000

Effective impact sound dampening and airborne sound insulation for alternative sound classes. Dry installation method. Installed directly on untreated subfloors without wet surface levelling. Provides floors with adapted comfort for better living and working environments. Creak-free floors. The Granab system is environmentally friendly and consists entirely of non-organic materials, and is not affected by variations in humidity or temperature. Structural height from 30 to 420 mm excluding flooring. Special heights up to 1000 mm. Flexible line routing in space between the surface flooring and subfloor. Load capacity/m2 distributed load, 4000 kg. Ventilation systems for ventilated subfloors. Designed for various floor heating systems.

The system facilitates future modifications or renovations. Comfortable, environmentally friendly floors. Low weight. Granab system weight, 5 kg/m2. Compared to conven-tional topping solutions, 100 – 200 kg/m2

Granab Subfloor Systems

Shape permanence

More than 4,000,000 m2 of Granab's patented and type-approved subfloor systems have been installed in homes,

offices, schools, shops and public buildings. Granab systems are type-approved, and tested and certified by the

SP Technical Research Institute of Sweden with respect to sound-dampening properties, dynamic loads, durability

and comfort properties. Granab systems are tested annually in various projects with respect to sound insulation and

deflection properties, and an extensive technology bank with test documentation is available our customers.

InstallationAn installed floor's quality is dependent both on the choice of floor covering, and that the Granab system and the flooring covering are correctly installed. Granab has detailed installation instructions for the Granab systems in a separate pamphlet along with check-lists for installation. Installation of flooring over a Granab system must be carried out in accordance with the flooring manufacturers' instructions. Laminated wooden floors must always be laid under controlled forms in compliance with the range of temperatures and relative humidity percentages stipulated by the respective manufacturers and suppliers of the flooring material.

SubfloorsHollow core slabs: Granab systems are commonly installed on hollow core slabs when the objective is to attain sound class A or B without additional topping (for more information, see pages 20–27).

In situ cast subfloors: With Granab systems, subflooring can be cast thinner. A cast subflooring of approximately 300 mm can be reduced to approximately 200 mm, when structural factors permit, with retained or improved sound insulation. This produces a lighter overall construction and improved overall economy. Flexible line routing in the space between the subfloor and floor covering also facilitates future renovations.

Wooden subfloors: Granab systems are installed directly on wooden subfloors so as to achieve improved impact and airborne sound insulation for the overall construction. Granab systems are, for example, widely used in attic conversions.

Planning and installation drawingsGranab prepares plans and installation drawings for each room or building unit with detailed dimensions and locations of all included girders. See the examples on pages 16 – 17. The girders are cut according to the installation plans and all included adjustment units, including dampening elements, are pre-fitted at the factory. This ensures that all girders receive the right support without deviations.

Granab systems are designed with non-deformable galvanised steel girders. They retain their shape and are not affected by humidity or temperature variations.

Other composite parts in the systems are also made of non-organic materials that do not absorb moisture. Granab systems – with guaranteed shape permanence – elimi-nate. for example, the risk of creaking or sag due to the effects of drying and moisture on girders, which is the case with girders made of organic materials such as wood.

Sound insulation

Comfort

Granab systems provide very effective impact and airborne sound insulation. Granab systems have been tested and type-proved for their sound-insulation properties by the SP Technical Research Institute of Sweden. Granab systems have also been tested in a large number of completed residential projects with respect to impact and air-borne sound insulation for sound class B, as well as sound class A in certain projects.

In a good living and working environment, it is important that floors are not hard or entirely rigid, which can cause pain in the back and legs. Granab systems, with their integrated impact-dampening effect, provide comfortable floors with documented deflection properties for point loads.

4 5

Granab Subfloor System 3000

400 60020 600 600 600 600 600 400

600

600

General installation drawing, Subfloor System 3000 – Residential

Construction heights: Flexible construction heights from 30 to 180 mm, excl. floor covering

With supplementary sheet between the girders

NB: The c/c distance between girders is determined by the choice of floor covering. For other premises, see the c/c distance between floor girders on page 8.

for adjustable heights 30 – 180 mm, excl. floor covering

Section with support block and dampening element, level adjustment screw and concrete anchor

6 7

22-mm parquet, alternatively 22-mm chipboard & 15-mm parquet or carpet

26,5

4517 17

79

Max. height180 mm

MIn. height30 mm

Granab Subfloor System 7000

400 600

600

600

20

600 600 600 600 600 400 20

General installation drawing, Subfloor System 7000 – Residential

Construction heights: Flexible construction heights from 70 to 420 mm, excl. floor covering.Special heights up to 1000 mm with masonite beams on girders (see page 37).

22-mm parquet, alternatively 22-mm chipboard & 15-mm parquet or carpet

for adjustable heights 70 – 420 mm, excl. floor covering

Special heights up to 1000 mm (see page 37)

NB: The c/c distance between girders is determined by the choice of floor covering. For other premises, see the c/c distance between floor girders on page 8.

Section with support block and dampening element, level adjustment screw and con-crete anchor

6 7

Adjustment height

70–420 mm 45

40

8 9

Planning instructions for for various load conditions,Granab Subfloor Systems 3000 and 7000

1. Rooms in dwellings, hotels, hospital rooms and staff rooms, c/c distance, girders (sections), 600 mm.

2. Assembly rooms such as classrooms, rooms in child-care centres, lecture halls, office rooms, premises for restaurants, cafes and dining halls, c/c distance, girders (sections), 400 mm.

3. Open areas in libraries, spaces with fixed seating such as in churches, theatres and cinemas, c/c distance, gird-ers (sections), 400 mm.

4. Spaces without fixed seating in churches, concert halls, theatres, cinemas, museums, exhibition halls, retail are-as in department stores and shops, gyms, sports cen-tres, dancehalls, corridors in schools, etc., c/c distance girders (sections), 300 mm.

Recommended c/c distances between floor girders (sections) and support blocks, Systems 3000/7000:

System 7000

System 3000

Distance from wall, approx.

40 mm

1st – 2nd girders, 400 mm c/c distance between floor girders (sections), 600 mmc/c distance between

support blocks, 600 mm

Distance from wall, approx.

20 mm

1st – 2nd girders, 400 mm c/c distance between floor girders (sections), 600 mmc/c distance between

support blocks, 600 mm

Load capacityFor girder spacing for homes, c/c distance 600 mm = 4 tons/m2

The point load capacity and distributed load of various floor coverings installed on Granab systems are calculated according to the specifica-tions of the respective flooring manufacturers.

8 9

The unique design of the Granab systems – with components of non-organic materials, steel girders, damp-ening elements and adjustment screws in various lengths – permits installation in many different types of projects and entails considerable benefits. The dampening element, which provides progressive resilience, makes the system an excellent choice for floors in sports centres and other multi-purpose areas, for example.The specified load capacity, 4 tons/m2 at c/c 600, can be significantly improved with tighter c/c spacing of both girders and adjustment units.

Planning instructions for various load conditions, Granab Subfloor Systems 3000 and 7000

Granab Subfloor Systems type-approved by the SP Technical Research Institute of Sweden

Granab Subfloor Systems 3000 and 7000 have been tested and certified by the SP Technical Research Institute of Sweden with respect to load capacity, stability and durability with veri-fied values for sound-dampening characteristics.

Granab systems fulfil the requirements of para-graph 2 in the Swedish act (1994:87) on techni-cal properties of constructions for intended usage – BVL.

Certificate and type-approval number 19 21 01, march 25, 2009

Evaluation documentation

Report 97B1, 9804 | Report P302700 | Report P302700A | Report P302700B | Report P302700C Report P302700D | Report P300682 | Report P300682A on dampening pads | IFP Research, 040317 Report, Assessment of flooring system IFP Research, 040206 | Report P302635 | Report P705473 Statement P705473A

10 11

Tested and certified by the SP Technical Research Institute of Sweden

See information on pages 18 – 19

1. Deflection properties

Load testing of the support block was conducted by placing the support block with an adjustment screw between two steel sheets and applying a load using a hydraulic press. Force and defor-mation were registered. During testing, only 10 mm of the adjust-ment screw was threaded into the support block.

2. Load testing, a separate support block/level adjustment screw

3,5

2,5

1,5

0,5

3

2

1

0

4

0 2 4 8 106Deformation (mm)

Kra

ft (k

N)

12

The deflection test was con-ducted by placing a steel rail in a hydraulic presswith two sup-port blocks fitted at a c/cdis-tance of 600 mm. A point load was thereafter applied on the steel rail between the support blocks. Force and deformation were registered.

3. Deflection testing, section with spliced sheet (without dampening pad)

4. Fatigue testing of installed Granab floor construction

Fatigue testing was conducted over a support block by applying a pulsating load of between 0.1 Fk and 0.6 Fk 10,000 times at a frequency of 1 Hz. Fk was the characteristic value from support block load test-ing. A total of two fatigue tests were conducted over the support blocks at the outer corners of the test floor. The load was pulsated between 0.1 and 0.6 Fk with Fk set at 8.5 kN. Both load tests were conducted without any lasting deformations or damages.

10 11

6

5

4

3

2

1

00 0,5 1,5 2,5 3,5 4,52 3 41

9

56

78

4

32

1

00 0,5 1,5 2,5 3,5 4,52 3 41

12

Elastomer, GRAB-310

No environmental impact, recyclable into new polyurethane products

GRAB-310´s resistance to short-term extreme overloads is very high and the material springs back entirely if overloaded.The long-term creep has no effect on the material's dynamic E-modules.

Material:

Environment:

P V

≤ 17 %≤ 18 %

≤ 2 mm≤ 2.2 mm

Resilience durability:

Total deflection (momentary + long-termcreep) at 106 h (114 years)

DynamicE-module

GRAB-310 Relative thickness For 12-mm thickness Change

≈ 0 %≈ 0 %

Elastomer has extremely long durability. Not affected by ozone, UV radiation or by commonly occurring chemicals.

Functional durability:

Granab Subfloor Systems are designed for easy removal when neces-sary and for subsequent reinstallation as complete units.

Granab Subfloor Systems, materials, environmental impact, durability, specific product properties

Material: Galvanised steel, alternatively, untreated steel, thickness 1.5 mm

Environment: Thin steel plate is a part of the ecosystem and processed into new steel in electro-steel works.

Functional dura-bility:

Galvanised steel has extremely long durability.

20%

15

10

5

2010° 10 1 10 2 10 3

2 N/mm 2

10 4 10 5 10 6

h

(114 years)

Granab subfloor systems

Floor girders

Dampening elements

Support blocks with adjustment screws

Materials: Polypropylene, Granab stand-ard, according to DIN 53444

Environment: No environmental impact. Recyclable into new basic material.

Functional dura-bility:

Very long according to the diagram

12 13

Examples of alternative floor coverings

22-mm chipboard & 15-mm parquet

Follow the instructions for installation and laying from the respective chipboard and parquet manufacturers.

22-mm chipboard & carpet

Gluing/screwing chipboard

NB: Casco Superset no. 3879 or equivalent

22-mm parquet, floating or glued to the girders

Floating Gluing, parquet

NB: Casco Superset no. 3879 or equivalent

NB: Use intermediate strips of flooring paper.

Tiles

WC/Bathroom Entrance/Hall

NB: Use flooring paper as an interlayer between the chip-board and parquet.

Granab systems are installed as subfloor systems for tiled areas in halls and wet rooms in various construction projects.

Granab systems – which consist entirely of non-organic materials – are not sensitive to moisture and at the same time, provide effective impact and airborne sound insulation.

The girders are installed with c/c spacing of 300 mm.

Example, remodelling: Granab subfloor system, c/c 300 mm, with 22-mm chipboard, sheet of non-organic material, moisture barrier, tiles.

A: Chipboard flooring, 22 mm B: Sheet of non-organic material C: Floor levelling compound

C

B

A

Tiled surfaces

Bathrooms

General drawing for tiled area

14 15

Testing of Granab subfloor systems with tiled surfaces

Bathroom modules

Granab subfloor systems with tiling have been tested by the SP Technical Research Institute of Sweden with respect to deflection and strength properties.

Complete bathroom modulesPrefab bathrooms are becoming increasingly common in residential construction in Sweden.

They have been widely used by our Scandinavian neighbours for several years.

A Granab system combined with a prefab bathroom, entails a complete solution with many benefits, includ-ing effective sound insulation.

The level difference between the subfloor and module is adjusted with the Granab system.

14 15

HALL

KÖK/V-RUM CA 33 m2(V-RUM CA 23 m2)

BALKONG CA 6,5 m2

SOVRUM 1CA 12,5 m2

HALL


BALKONG CA 6,5 m2

HALL


BALKO

NG

CA 6,5

m2


SOVRUM 2 CA 12,5 m2

SOVRUM 1CA 11 m2

SOVRUM 2CA 8,5 m2

HALL

SOVRUM 3CA 11,5 m2

SOVRUM 1 CA 12,5 m2

SOVRUM 2 CA 9 m2

SOVRUM 1 CA 11,5 m2

KLK CA 3,5 m2

WC/DUSCHCA 5,5 m2

WC CA 1,5 m2

KLK CA 2,5 m2

KLK CA 1,5 m2

WC/DUSCHCA 5,5 m2

WC/DUSCHCA 5,5 m2

FRDCA 2 m2E

E

EE

BALKO

NG

CA 6,5

m2

WC/DUSCHCA 5,5 m2

BOX 172447 24 VARGARDA

Claes-Goran Andreasson

DATUMSIGNÄNDRINGEN AVSERANTBET

HANDLÄGGARERITAD AVUPPDRAG NR

ANSVARIGDATUM

BETNUMMERSKALA

GRANAB AB

KV.UGGLAN

VEIDEKKE SVERIGE

071116GRANAB S-7000

1:50(A1)

PLAN 2-5HUS 1

850

1220

1220

1500

1310

1500

1310

15202600

15202600

15202600

15202600

2030

360

16202600

2450

1620 2600

10802600

10802600

10802600

10802600

108026002000

108026002000

1360260026002600

1360260026002600

300

2520

1470

9603002370

1080

2600

7302600

1240

2090

2530

1460 2600 2600 2600

500

850750

950

500

2210

2210

2210

2210

2210

3002460

3002460

1570

2600

1930510

2600

450

1100

250 2600

320

440

500

850

850

500

2600

2600

2600

2600

2600

2820

2040310

2820

2690

500

850

3002360

3002360

3002360

3002360

3002360

3002360

3002360

1460

2600

8301630

1460

2600

300 2450

850

500

3002360

3002360

3002360

3002360

3002360

3002360

990

2600

5301970

990

2600

300 2450

310

13702600

13702600

13702600

13702600

2450

14602600

2120

1460 2600

11102600500

500

500

1230

11102600

11102600

11102600

11102600

11102600

11102600

11102600

11102600

11102600

1200 2600

340

2600

2600

8202600330

2280

1590

1120

850

950

1550

3002380

15102600

15102600

1410

1470

450

3002480

1700

300 2390

1550

380

1560

850

1430

520

650

1520

830

580

850

3002360

500

3002360

3002360

3002360

3002360

3002360

3002360

1320

2600

3002450

1320

2600

720 1770

850

850

500

2480

2480

2480

2480

2480

2480

1320

2600

2580

1320

2600

530 1880

500

500

500

15202600

760

310

950

2390 380

2600 2600

15202600

15202600

15202600

15202600

2340

1360260026002600

1360260026002600

10702600

10702600

10702600

10702600

10702600

10702600

1540

300

2380

360

2000

16202600

2450

760

6702600

1810

340 2600 2600

640

2600

300 2350 960

850

2340

2340

1070

2430

1070

2430

2160

2600

720

2350

2600

7202250

2250

2250

2250

2250

400

850

2250

3302250

2600

1320

2600

2600

1320

2460 300

2460 300

2460 300

2460 300

2460 300

2460 300

500

2460 300

850

2600950

2260

1600

1580

2010

2600 1460

2450

570

490

2600

2600

340

2600 1090

2600 1090

2600 1090

2600 1090

2600 1090

2600 1090

2600 1090

2600 1090

2600 1090

2600 650

2600 1370

2600 1370

2600 1370

2600 1370

500

500

500 31

0

1740

640

2350

1980

2290 300

380

1550

1810

2250

2600 1500

2600 1500

1460850

1520

950

1530

1320

490

740370

520

1430

850

GR 1:75

Planning, logistics efficiency

Packaged and labelled for each flat

Delivery optimisationGranab systems are packed and delivered with pre-cut and dimension-adapted floor girders and factory-fitted support blocks and dampening elements. Each girder is labelled with a room name and length that matches the information on the installation drawing for each flat or other agreed-upon space subdivision. Granab systems are packaged in bundles on EUR pallets with a maximum length of either 2600 mm or 3800 mm.

16 17

Planning, logistics efficiency

Girders are pre-cut to the correct lengths according to the drawing for each room unit.

Because Granab systems consist of non-organic materials and are not affected by moisture or temperature varia-tions, they can be delivered while the framework is still under construction. Granab girders can be produced with a maximum length of 2600 mm – the same length as for a bundle of plasterboard. The plasterboard for the walls can be moved in along with the wall girders, which are placed on stands above the Granab girder packages.

By lifting the materials into place during framework construction and erecting the interior walls above the Granab system, workflow is more efficient and costs for logistics are minimised.

Interior walls for finished Granab subfloorsWalls for flats or other subdivisions are first erected from floor to ceil-ing. It is advisable to erect interior walls within a flat or subdivision on finished Granab subflooring, including the chipboard.Erection of interior walls in this manner permits the chipboard to be installed quicker and entails less waste in that one is working with larger, continuous floor surfaces. Material consumption for the interior walls is lower and installation of both the Granab floor and interior walls goes significantly faster.

Intra-transport in conjunction with framework construction

6.9 m²

SOV1

40.7 m²

STUE/KJØKKEN

3.9 m²

WC10.3 m²

GANG

3.2 m²

SKAP/BOD

8.6 m²

BAD/OMKL.

8.4 m²

SOV36.6 m²

SOV2

11.8 m²

SOV17.4 m²

BAD/VASK/OMKL.7.8 m²

HALL

2.6 m²

SKAP

39.5 m²

STUE/KJØKKEN

6.6 m²

SOV2

4.5 m²

BOD

28.4 m²

STUE/KJØKKEN

4.7 m²

HALL

6.9 m²

SOV110.4 m²

SOV2

7.5 m²

BAD/VASK/OMKL.

4.1 m²

HALL

13.8 m²

GANG

11.3 m²

TERRASSE

10x21M

10x21M

10x21M

8.4 m²

SOV36.6 m²

SOV2

40.7 m²

STUE/KJØKKEN

6.9 m²

SOV1

8.6 m²

BAD/OMKL.

4.1 m²

HALL

10.3 m²

GANG

3.2 m²

SKAP/BOD

3.9 m²

WC

9.9 m²

TERRASSE

9.5 m²

TERRASSE

37.8 m²

STUE/KJØKKEN

6.6 m²

SOV2

11.8 m²

SOV17.4 m²

BAD/VASK/OMKL.

7.8 m²

HALL

2.6 m²

SKAP

21.1 m²

TRAPPEROM10x21M

10x21M

10x21M

10x21M

10x21M

8x21M

10x21M

10x21M

8x21M

8x21M

10x21M

10x21M

10x21M

8x21M

10x21M

10x21M

10x21M

10x21M

10x21M

10x21M

10x21M

10x21M

28x21M

9x21M 10x21M 9x21M

10x21M10x21M

10x21M

8x21M

28x21M

10x21M

10x21M

10x21M

10x21M

10x21M

8x21M

10x21M

10x21M

0.6 m²

EL-SKAP8

11

46

1

2

2

1

1

2

2

9 10

9

99

9

99

8

1 1

46

1

2

2

1

1

2

2

1

1

1

5

2

2

1111

11 11

11

1

1

1

5

2

2 11

4

1

1

1

1

5

6

2

2

26002600260026001980

2600

2600

10

2600

5302600 380

2500

2180

2310

300 2600 2470

1810

2600680

400

2420

2600 1010

2560

300

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 940

2600 2600 2600 940

2600 2600 2600 940

2600 2560 1320

2600 2000 2600 2400

2600 1400 2600 2400

2600 800 2600 2400

1170

2600

430

1170

2600

430

1100

1100

1100

1100

1100

950

950

26002600260026001980

2560

300 2600 870

2420

4102600820

1810

2600 2470

2560

2180

2570

2600 380

2600

530

2600

2600

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 2600 1910

2600 2600 2600 940

2600 2600 2600 940

2600 2600 2600 940

1320 2600 2560

2600 2400 2600 2000

2600 2400 2600 1400

2600 2400 2600 800

2600440

1600

1880

1170

2600

430

1170

2600

430

1100

1100

1100

1100

1100

950

950

26001500

2440

300

2600430

2600

270

2530300

1720

1290

1280

26002600

390

2600 1970

18201680

2600

2600

1580

2540 300

2310

2460 300 2600 1430

2460 300 2600 1430

2460 300 2600 1430

2600 600 2600 1430

2600 950 1230

2600 2600 2140

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1950

2600 2600 1950

2600 2600 1950

2120

920

2400

2600420

950

26001430

26002600410

400

1190

2600

2600

870

2600 2600 2600 1810

2600

1010

2460300

2600

400

2600 2600 340

2600 2600 1480

2600 2600 1480

2600 2600 1480

2600 2600 1480

2600 2600 2600 1740

2600 2600 2600 1740

2600 2600 2600 1740

2600 2600 2600 1740

2600 2600 2600 1740

2600 2600 2600 1740

26002600270

2530300

2510

300

2600430

2500

30026001500

2310

2400 300

2600

2600

1720

2600 2600 2020

2600

2600

390

1280

1220

1790

2600 1430 2460 300

2600 1430 2460 300

2600 1430 2460 300

2600 1430 2600 600

1230 2600 950

2600 2600 2140

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1960

2600 2600 1950

2600 2600 1950

2600 2600 1950

2330

2600350

26001410

950

2600880

2260

320 2600 690

2500

2600 820

2600 820

2600 820

2600 820

2600 820

2600 820

2600 820

2600 820

1550

1900

2600410

2600880

2520

2600 680 320

2270

2600 800

2600 820

2600 820

2600 820

2600 820

2600 820

2600 820

2600 820

1800

2440

660 410

1200

1880

560

560

1680

1680

1680

1680

1680

1680

2520300

2380

300 2520 300

2380

300

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

2420 300

2420 300

2410300

2330

300 2410 300

2330

300

2600

2600

2600

2600

2600

2600

2600

2600

2600

2520300

2380

300 2520 300

2380

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

2410 300

300

1970

1890

1280

520

660

2440

1870

1870

1870

1870

1870

1870

560

560

BOX 172447 24 VARGARDA

Claes-Goran Andreasson

DATUMSIGNÄNDRINGEN AVSERANTBET

HANDLÄGGARERITAD AVUPPDRAG NR

ANSVARIGDATUM

BETNUMMERSKALA

GRANAB ABTERRASSE

TERRASSE

GVJ

KV.RONNVIKVEIEN

PLAN 1-4

GR 1:731:50(A1)

080214GRANAB S-7000

HUS C

16 17

Deflection during application of point loads on floors laid on a Granab system is dependent on – besides the subfloor construction and c/c distance between the girders – the choice of floor covering and how installa-tion is performed.The respective flooring manufacturers provide informa-tion about deflection for each type of floor covering.Deflection of the finished floor construction with a point load of 1 kN should not exceed 2 – 3 mm accord-ing to the SP Technical Research Institute of Sweden.

Deflection properties

Testing and certification are conducted by the SP Tech-nical Research Institute of Sweden. Contact Granab about full type-approval no. 192101.Granab systems with 22-mm chipboard and both 15-mm or 22-mm parquet have been tested in a number of residential projects by the SP Technical Research Institute of Sweden with respect to deflection of the completed floors. The results show an average deflec-tion within 2 mm of other measurement points in each flat with a point load of 1 kN.Documentation from measurements conducted by the SP Technical Research Institute of Sweden with alternative floor coverings from a large number of field measurements in completed residential projects can be provided by Granab upon request, as well as figures from lab measure-ments conducted by the SP Technical Research Institute of Sweden and measure-ments from a large number of assembled test floors in Granab's testing facility with alternative floor coverings.All measurement results are within the margins for recommended values.

Pleasant, comfort-adapted floors with Granab systems for a better working and living environmentIn a good living and working environment, it is important that floors are not hard or entirely rigid, which

can lead to pain in the shoulders, back and legs. Granab systems, with their integrated impact-dampen-

ing effect, provide comfortable floors with documented degree of deflection for point loads.

Example from test measurements of deflection when a point load is applied

Lab tests of deflection for various point loads

18 19

6

5

4

3

2

1

00 0,5 1,5 2,5 3,5 4,52 3 41

Granab systems provide pleasant

and comfort-adapted floors for

improved living and working

environments.

Floor constructions with par-quet or other floor coverings on girders entail less elastic deflection in the floor layer when point loads are applied.In certain cases, residents who are accustomed to entirely rigid flooring on concrete subfloors may have questions about the floor construction and the new floors.

Granab can provide separate information sheets for answering these questions.

Non-deformableBecause Granab systems are non-deformable and constructed entirely of non-organic materials, there will be no problems with sagging or creaking that can occur in conjunction with drying or creep of floor joists made of wood, for example, or

other organic materials.

Floor coveringsThe choice of floor covering is an important factor for the final comfort of a completed floor. Point-load deflection for Granab systems is in compliance with the applicable standards and recommendations. For the entire finished floor construction (including the floor covering) to attain the expected comfort – besides the choice of floor covering laid over the Granab sys-tem – it is important that the both the Granab system and floor covering are installed by trained installers and floor-layers, and that the installation instructions and checklists are carefully followed.

Testing methodology for deflection of completed floorsThe SP Technical Research Institute of Sweden has developed a measurement method and device with digital deformation sensors for reliably and easily measuring deflection of com-pleted floors. Please contact Granab for information about the measurement device and instructions for use.

Testing methodology for deflection of completed floors

Information to residents

18 19

Impact and airborne sound insulationImpact and airborne sound insulation in homes and offices Granab systems provide effective impact and airborne sound insulation. Effective insulation against sound from surrounding spaces is important for a good living and working environment. Investigations show that in older structures, residents are often disturbed by impact sounds, loud music, slamming doors and staircase traffic, as well as noise from running water, lifts, ventilation and traffic. A good sound environment has become a prioritised requirement when building new homes, and there are also more stringent requirements for quieter working environments in offices and schools.

Documentation of Granab systems' sound-insulating properties Granab systems have been developed in close collaboration with researchers and acoustic consultants in the building industry to satisfy highly placed demands on impact and airborne sound insulation in homes, offices and schools. Granab systems func-tion as supplementary insulation for building frameworks both in new construction and remodelling projects. The impact and sound insulating function of the systems has been carefully documented in accordance with the requirements of SS 25267 through, for example, lab measurements and a large number of field measurements in completed buildings. In this way, values for sound dampening could be established, permitting sound insulation in buildings to be verified with calculations as specified in SS 25267. Calculation of sound insulation in completed buildings shall be conducted according to the Swedish and European standard SS-EN 12354, Parts 1 and 2 with input data from Granab. Input data for concrete subfloors is in the BASTIAN database, as well as at www.byggamedprefaf.se and www.betongbanken.com. For lightweight subfloors, such as wooden subfloors, contact Granab.

A number of examples of acoustic measurements in the SP Technical Research Institute of Sweden's impact-sound lab, as well as vertically between flats with Granab subfloor systems installed on hollow-core slabs HD/F 120/19 and HD/F 120/27 in build-ings, are presented on pages 24–27.

• The impact sound value shall be as low as possible.

• The airborne sound value shall be as high as possble.

20 21

SS 25267 Applicable sound class limits for dwellings

Sound class according to SS 25267

Highest permitted impact sound lev-el* L´n,w+ CI,50-2500

Lowest permit-ted airborne sound level* R´w+ C50-3150

A 48 dB 61 dB

B 52 dB 57 dB

C 56 dB 53 dB

Examples of measurement results

Impact sound L´n,w+ Ci,50-2500

Airborne sound R´w + C50-3150

Remarks

Accredited sound measurements in completed building with a Granab system on hollow-core slabs HD/F 185 mm

and HD/F 270 mm

Granab system, height 65 mm incl. floor covering laid on HD/F 270 mm

Granab system, height 70 mm incl. floor covering laid on HD/F 185 mm

Granab system, height 150 mm incl. floor covering laid on HD/F 185 mm Granab system, height 165 mm incl. floor covering laid on HD/F 270 mm

System 3000Also see measure-ment results for alternative con-figurations of Granab systems on pages 24 – 26.

System 7000page 27

51 dB

51 dB

46 dB

47 dB

50 dB

65 dB

58 dB

61 dB

59 dB

* Verification with calculations. When performing verification measurements, the requirement shall be fulfilled in average values, although deviations of no more than 2 dB are permitted in isolated cases as long as the average value is attained.

Presented field measurements with alternative configurations of Granab systems show impact and airborne sound values that comply with sound class B and in certain configurations, sound class A.

Sound class limits in force for residential properties in various countries. Defined by national standards for eachcountry as follows:

Denmark: DS 490 (2001).

England: Part E of Building Regulations 2000.

BIP 2023:2003.

BS 8233:1999.

Finland: SFS 5907.

Valtioneuvoston päätös No 993 1992.

France: Guide Qualitel (200).

Holland: NEN 1070 (1999).

NPR 5070:2004.

Iceland: IST 45 (2003).

Spain: Technical Building Code (TBC) and

Building Act 38/1999 (LOE).

Germany: VDI 4100 (1994).

E DIN 4109-10 (2002).

Austria: ÖNORM B 8115:2002.

ConditionsGranab subfloor systems, including floor coverings, can be configured for various sound classes (A – C according to BBR and SS 25267/SS 25268).

For a planned sound class between rooms in buildings with Granab subfloor systems to be attained both vertically and horizon-tally, it is important:• That the floor and wall constructions provide the correct conditions for attaining the correct sound class, which can be veri-

fied by calculating the sound insulation in unfinished floors and walls according to SS-EN 12354 or by measuring the sound insulation during the production phase according to the methods in SS 25267. Measurements are made before the under-floor system is installed with temporary actions taken during measurement to prevent airborne sound leakage between measurement spaces.

• That Granab subfloor systems are installed by trained installers and and in accord-ance with Granab's installation instructions and installation checklists.

• That Granab systems and the floor coverings can move freely and do not have rigid contact points against the building framework, for example, at attachments and lead-throughs.

• That sound leakage through joints and installations in floors and walls is prevented.• That flank transmission via attached constructions – exterior walls, subceilings, etc. –

is prevented.• That sound transmission via ventilation ducts between flats does not occur.• For more information, see Granab's general delivery and sales terms.

Granab subfloor systems are constructed with non-deformable steel girders and an effective resilient suspension system. The subfloor systems are secured to stable subfloors with screws and set at the desired height. Floor coverings of the parquet or chip-board of your choice can be glued, screwed or laid floating. Hollow-core elements and solid subfloors do not require the application of levelling compounds when they are complemented with a Granab subfloor system, which means shorter construction times, reduced building humidity and increased flexibility.

To ensure that planned sound classes are attained both vertically (between floors) and horizontally (on the same floor) in com-pleted buildings, all components of the building construction must function in the correct manner. An acoustic consultant should be engaged to review planned building constructions (construction documents). During the construction phase, installation should be checked according to our checklists.

Definition, airborne sound insulation:The separating construc-tion's capability to reduce sounds that reach the construction via the air.

Definition, impact sound level:The sound pressure level in a demarcated space from a standardised impact sound device that hammers on a floor.

Sound class description, dwellings, according to SS 25267

Sound class A: The sound class corresponds to very good acoustic conditions.

Sound class B: The sound class corresponds to significantly better acoustic conditions than sound class C. This sound class should be applied when a good living environment is requested.

Sound class C: The sound class provides satisfactory acoustic conditions for a majority of residents and can be applied as a minimum requirement according to the Swedish Board of Building, Planning and Housing's directives.

Remarks: The function requirements in this standard are adapted to the respective sound classes on the basis of extensive practical experience of subjectively perceived acoustic environments in dwellings. It should be noted, however, that building constructions – for both practical and financial reasons – cannot be designed to entirely avoid audible sound from adjoining spaces from all types of activities. Audible sound can occur, for example, from jumping or substantial impact on a floor. even occur in buildings that fulfil the higher sound classes

Percussive sound: Percussive sound is addressed in SS 25268 (version 2 2007) and referred to there as ”impact sound in same room”. The requirement stipulates that percussive sound shall be limited in spaces in which several persons are present more than temporarily, such as in large office spaces, nursery schools, etc. Guidelines for measurement and assessment of percussive sound are included in the SIS technical report 2007:15 (www.sis.se). The degree of percussive sound is dependent on the floor covering used. Contact Granab for more information prior to planning.

20 21

Granab subfloor systems have been tested by the SP Technical Re-search Institute of Sweden on a reference subfloor of 16-cm concrete according to the Swedish and international standard SS-EN ISO 140. The impact sound tests were conducted with15-mm parquet flooring on flooring paper, Granab's subflooring of 22-mm chipboard flooring that was glued and screwed to the 7000 system's steel sections, green Sylodyn® dampening pads and spacer screws in the concrete subfloor. The dampening pads are built in under the steel sections and permit movements in the floor without impact sound being transmitted via the screws to the concrete subfloor.

By comparing measured impact sound levels for completed floors with the levels attained for the lab's concrete subfloor alone, the SP Techni-cal Research Institute of Sweden can present improvement values for the Granab system ( ) that were calculated in the one-third octave band according to ISO 140-8.

The improvement values from the lab can be used for calculating impact sound levels in buildings with other types of concrete subfloors in ac-cordance with SS-EN 12354-2. Values for Granab systems and various concrete subfloors are in the database for the calculation programme BASTIAN. When calculating impact and airborne sound insulation in subfloors between rooms, the programme takes consideration to the effects of areas and room volumes, as well as adjoining structural ele-ments, which enables both simple and cost-effective engineering of a building's sound insulation. The calculation results have been compared with a large number of values from field measurements and have been shown to agree well in regard to average values. Granab recommends maintaining a 1-dB margin when engineering against acoustic require-ments in completed buildings in accordance with SS 25267/-68.

Impact sound reduction in the lab

System 3000

System 7000

22 23

Guidance in the choice of floor coverings and upper flooring on thin concrete subfloors according to SS 25267 Appendix B, (<180 mm)

In Appendix B of SS 25267, classification is conducted of floor coverings' impact sound dampening on thin concrete subfloors. The classification is made in seven different floor covering classes with descriptions of impact sound dampening for the respective floor covering classes. The highest floor covering class is class 8A, which the Granab systems fulfil by a wide margin. Wooden floors and carpet on a thin elastic mat normally fulfil impact sound class 7, which results in sound class C on the same floor.Floor covering class Criterion dB Significance/Application. Floor coverings that belong to the group8A 25-28 can fulfil sound class A between dwellings when they are laid on concrete subfloors.For a full description, please refer to the standard SS 25267 (SIS proposal), www.sis.se

To facilitate comparisons of various floor solutions for dampening impact sound, there is a classification system in Appendix B of the Swedish standard for sound classification of dwellings (SS 25267). The impact sound classification is based on the weighed summation value w that the SP Technical Research Institute of Sweden calculates form 16 values in the one-third octave band (100 – 3150 Hz) according to SS-EN ISO 717-2. Buildings with concrete floors and coverings in impact class 7 normally fulfil BBR's requirements (sound class C). Granab systems produce 29 dB, which fulfils the highest impact sound class 8A. Floors in this class normally fulfil impact sound requirements for sound class A in buildings with concrete floors.

Impact sound reduction in the lab

with

Granab subfloor systems

29dB

22 23

Impact and airborne sound reduction, vertical, System 3000

ConfigurationGranab subfloor system installed on HD/F 270 mm and 22-mm chipboard & carpet

Measurement resultsImpact sound: Lnw+c 46 dB Airborne sound: Rw+c 65 dB

ConfigurationGranab subfloor system installed on HD/F 270 mm and 22-mm chipboard & 15-mm parquet


System 3000, airborne sound System 3000, impact sound

Sound insulation measurements

Granab subfloor system installed on HD/F 270 mm. Accredited sound insulation measurements according to: SS 02 52 54 - SS-ISO 717/1 and SS-ISO 717/2 conducted by Ingemansson Technology AB.

65

270

65

270

24 25

Reference curve0-measurement. B1-A1 VerticalSystem 3000 B1-A1 Vertical

Reference curve0-measurement. B1-A1 VerticalSystem 3000 B1-A1 Vertical

R´w+c = 58 dBR´w(8) = 59 dBR´w(8) = 67 dBR´w+c = 65 dB

L´w+c = 84 dBL´w(8) = 84 dBL´w(8) = 46 dBL´w+c = 46 dB

Reduction figure Impact sound level




ConfigurationGranab subfloor system installed on HD/F 185 mm and 22-mm chipboard & 15-mm parquet




Granab subfloor system installed on HD/F 185 mm Accredited sound insulation measurements according to SS-EN ISO 140-4-7 conducted by KM Akustikbyrån.

70

70

185

185

24 25

Reference curve0-measurement. B1-A1 Vertical

System 3000 B1-A1 Vertical

R´w= 57 dBR´w+c= 55 dBR´w= 62 dBR´w+c = 58 dB

Impact sound level

Lń, w = 80 dBLń, w+c = 67 dBLń, w = 49 dBLń, w+c = 51 dB

Reference curve0-measurement. B1-A1 Vertical

System 3000 B1-A1 Vertical

Reduction figure


ConfigurationGranab subfloor system installed on HD/F 185 mm with 22-mm chipboard above.


ConfigurationGranab subfloor system installed on HD/F 185 mm and 22-mm chipboard, and 15-mm parquet above.




Granab subfloor system installed on HD/F 185 mm Accredited sound insulation measurements according to SS-EN ISO 717/1, 717/2 conducted by J&W Akustikbyrån.

150

185

150

185

26 27

Reduction figure

Reference curveSystem 3000 Vertical

R´w = 64 dBR´w+c = 61 dB

Impact sound level


L´w+c = 42 dBL´n, w = 47 dB

90

80

70

60

50

40

30

20

10

0

63

50 100 200 400 800 1600 315080 160 315 630 1250 2500

125 250 500 1000 2000 4000




ConfigurationGranab subfloor system installed on HD/F 270 mm and 22-mm chipboard, and 15-mm parquet above.




Granab subfloor system installed on HD/F 270 mm Accredited sound insulation measurements according to SS-EN ISO 140-4-7 conducted by KM Akustikbyrån.

150

270

150

270

26 27

Reduction figure Impact sound level


Rw = 62 dBRw+c, = 59 dB


L´n, w = 47 dBL´n, w + c = 50 dB

Offices – Public buildingsImpact and airborne sound insulation Granab subfloor system are installed in many office projects. Flexible line routing between subfloors and floor coverings entails major benefits while at the same time, the Granab system creates a good acous-tic environment. Granab systems fulfil the acoustic requirements for offices in accordance with SS 25268 by a very wide margin.

Pleasant, comfort-adapted floors for a better working environmentIn a good working environment, it is important that floors are not hard or rigid, which can lead to pain in the shoulders, back and legs.Granab systems, with their integrated steel-dampening effect, provide com-fortable floors with documented degree of deflection for point loads.

Acoustic requirements, offices, according to SS 2 52 68

Airborne sound insulation, in accordance with SS 2 52 68Lowest total airborne sound insulation between spaces Rw (dB)

Type of space Sound class B Sound class C

Office room 35 35 – along corridor 30 30Interview/conference room 441) 44 – along corridor 352) 351) For special requirements, 48 dB. 2) For rooms with glazed walls, 5 dB lower is acceptable.

Impact sound insulation, in accordance with SS 2 52 68Highest impact sound level between different spaces, L´nw (dB)

Type of space Sound class B Sound class C

Office room, interview roomConference room, break room. – along corridor 64 68from other space 60 68

28 29

Configuration

Granab Subfloor System 7000 incl. 22-mm chipboard & 15-mm parquet. Light weight wall erected continuously on Granab sys-tem incl. surface layer.

Measurement resultsImpact sound: Lnw 59 dB Airborne sound: Rw 56 dB

Offices – Public buildings

Example – PlanningElectrical, datacom, telecom – Offices

System description – ElectricalGranab subfloor systems permit distribution of supply systems for power, telecom, datacom, etc. Premises larger than 1000– 2000 m2 are divided into supply zones.

Spaces – Central unitsThe supply zone is equipped with a fixed unit (so-called island with toilettes, etc.) where central units for power, telecom, datacom, fire alarms, etc. are placed.

Canalisation – Line routesThe cable networks are run on cable trays or baskets under the floor along a primary route from the central units and on to the supply zone. The floor is equipped with access hatches over the route.

From the primary route, the cables are run in installation con-duits to the equipment locations (outlets).

The system can be potential equalised.

KM ELTEKNIK AB Rullagergatan 6, 415 26 Gˆteborg ∑ Tel: 031-727 25 00 ∑ Fax: 031-727 25 01 www.km.se

KONTOR

Uppdragsnummer 203939 Datum 2000-02-15 Rev. datum

Uppr‰ttad av Jorkby, Ingemar Granskad av Godk‰nd av

GRANAB GOLVREGELSYSTEM SYSTEMBESKRIVNING - EL

GRANAB AB

Remodelling into offices, library and other public premises

Granab subfloor system installed in the Kv. Stallet project, Stockholm

28 29

Granab ventilated subfloors

Granab can provide ventilation planning that even encompasses function, operation and maintenance instructions. Installation of ventilation is conducted by a local HVAC installer or building contractor.

If there is uncertainty and risk concerning humidity content or emissions form the bottom slab or subfloor construction, air gaps under the finished floor should be ventilated using mechani-cal ventilation in combination with the fitting of a moisture barrier under the floor girders.

In its standard configuration, the height of the Granab system is adjustable from 30–420 mm and provides an open airflow under the girders.

The space under the floor constitutes a separate “room unit” (sealed box) that is ventilated independently, or in special cases, in combination with other ventilation.

System 3000 with moisture barrier above the girders

System 7000 with moisture barrier above the girders

Order our ventilation pamphletfor more information.

30 31

Granab ventilated subfloors

A large number of single-family dwellings and other buildings are subjected to moisture damage each year in basements, or elevated moisture content in basement slabs.

Besides performing checks and taking possible measures involving new drainage and filling materials around the structure, the wooden joists or plastic floor covering in-stalled or placed directly on the basement floor must be removed, followed by drying of the concrete floor.

Do not build in moisture!Moisture from concrete floors in basements or bottom slabs must be removed through ventilation and not built into the floor construction. A Granab system with floor girders of galvanised steel and no organic materials is adjusted up from the concrete floor to the desired height and air in the space between the subfloor and surface flooring is constantly extracted using ventilation.Granab systems with sound-dampening elements pro-vide comfortable floors with good acoustic properties.

Granab ventilated subfloor principle

Separate mechanical ventilation in “room unit” under the floor using an exhaust fan that draws air out via perforated air ducts of, for example, standard spiral ducting.

Inlet air to the ducts is obtained via a filter-equipped air terminal device that takes inlet air from the respective room units.Additional inlet air can be obtained with, for example, an additional outdoor air valve.

Avoid moisture, mould and stale indoor air – install a Granab system with underfloor ventilation.

30 31

32 33

Floor heating installed in Granab systems

Floor heating is installed in Granab systems in increasing num-bers of residential projects.

Granab systems with steel floor girders is entirely non-de-formable and not affected by temperature variations, which is a major advantage in avoiding subsequent floor construction problems.

Installation of most available floor heating systems with Granab Subfloor Systems 3000 and 7000 provides significant benefits.

Floor heating in 22-mm chipboard flooring with grooves

Floor heating in sealed floor heating units

Grooved 22-mm chipboard flooring that is glued and screwed in place on the Granab girders.Floor heating plates are fitted in the grooves to distribute the heat from the tubes to the floor. The floor heating tubes are then pressed into the heat distribution plates.

Floor covering15-mm parquet is laid directly on the floor heating installation, possibly with an underlying mois-ture barrier.It is important that installation instructions from the flooring manufacturers are carefully followed.

Heating coils are installed in the floor heating units. The sealed unit/floor plate is fitted parallel to the subfloor system's girders and on the sealed unit brackets, which are mounted between the girders (System 7000). Standard spacing between joints, c/c 600.

Floor covering

22-mm chipboard flooring & carpet or 15-mm parquet, alternatively, floor mortar & tiles

When choosing waterborne floor heating, two alternative primary systems are installed in Granab Subfloor Systems 3000 and 7000:

For detailed informa-tion, order our floor heating pamphlet.

32 33

Floor heating installed in Granab systems

Recessed convectors

Examples of projects with floor heating/recessed convectors

On many residential projects, solutions with recessed convectors are preferred; for example, when there are glazed floor-to-ceiling facades and downdraughts are to be avoided, but an attractive solution is also desired without visible radiators. In these cases, installation of a Granab subfloor system is very beneficial in that the space between the sub-floor and finished floor can be utilised.

Project: Kv. Klabben, 6000 m2, Stockholm

Client: Folkhem AB

Project: Sickla Udde, 5000 m2, Stockholm

Client: NCC AB / Familjebostäder

34 35

Granab systems with floor additions

Granab systems on wooden subfloors

Granab subfloor systems have been installed in a large number of projects where low weight, in combination with effective impact and airborne sound reduction, is prioritised.

Granab systems entail:Low weight/m2. Approximately 5 kg/m2 in comparison to correspond-ing 10-cm conventional topping solutions: approximately 240 kg/m2.

Project: Gånglåten, 6000 m2, GöteborgClient: PEAB AB / Bostads AB Poseidon, Göteborg

Granab subfloor systems can naturally also be installed on wooden subfloors. For attach-ment, wood screws are used instead of concrete anchors. Contact Granab for more infor-mation.

Granab systems in attic conversions for flats

Project: Attic conversion, 500 m2, Stockholm

34 35

Installation tools, Granab Subfloor Systems 3000 and 7000

Accessories Girder spacers

Mandrel for recess-ing in predrilled holes

Mandrel for final fixation

Screwing tool for adjusting floor girder heightsFor screwdriversShort model: Cat. no. 8100 Long model: Cat. no. 8200

Screwing tool for manually adjusting floor girder heightsShort model: Cat. no. 8300 Long model: Cat. no. 8400

Mandrel for installation of con-crete anchors (1 of each included)Cat. no. 850 A Length 250 mm Cat. no. 850 B Length 500 mm Cat. no. 850 C Length 1000 mm

Drill bit for recessing adjustment screws in girdersCat. no. 8600

Concrete drill bit for concrete anchors.Cat. no. 8700, 250 mm, shortCat. no. 8800, 460 mm, long

Installation pipe for concrete anchorsCat. no. 8900

Cat. no. Tool9300 Girder spacing 300 mm9400 Girder spacing 400 mm9500 Girder spacing 500 mm9600 Girder spacing 600 mm

För isolerings-tjocklek A

70

20

Automatic screwdriver Chipboard flooring screws Insulation bracket, system 7000

Automatic screwdriver type HILTI, 4000 rpm unit. For chip-board flooring screws. Contact Granab.

Self-tapping screws for chip-board. Contact Granab.

Insulation thickness, A mm: 40, 80, 120 or as agreed.Cat. nos. 7040, 7080, 7120

For detailed information, order our installation instructions and DVD.

36 37

Material specifications,Granab Subfloor System 7000

Support block with damp-ening element, adjustment screw and concrete anchor. Cat. no. 3001

Floor girder sectionCat. no. 3010

Support block with damp-ening element, adjustment screw and concrete anchor. Cat. no. 7001

Floor girder sectionCat. no. 7010.

Adjustment screws are availa-ble in standard lengths: 40, 65, 125, 150, 250 and 400 mmSpecial lengths can be pro-vided.

Granab subfloor system installed in project at University of Örebro

Material specifications, Granab Subfloor System 3000

36 37

Installation example

High height

Door openings

Plastic film

As standard, the level of Granab Subfloor System 7000 can be adjusted up to 420 mm. If heights are pre-ferred up to approximately 1000 mm, masonite beams are fitted to the Granab girders. Masonite beams are available in various heights and lengths. Masonite beams are attached to Granab girders with self-tapping screws. NB: Mounting screws may not come in contact with adjustment screws/blocks.

NB: The plastic film is installed above the girders – not directly on the con-crete subfloor.Installation, floating parquet.Granab systems, including girders, are entirely non-organic and not affected by moist environments. By placing the plastic film over the girders, effective, long-lasting moisture protection is obtained against the floor layer above.

Installation, floating 22-mm chip-boardGranab systems, including girders, are entirely non-organic and not affected by moist environments. By placing the plastic film over the girders, an effective moisture pro-tection is obtained against the floor layer above.

System 3000A board is placed on the girder flang-es as a foundation for subsequent installation of a door threshold or cover moulding (NB: Not chipboard).

System 7000The girder is installed at the centre of the door opening so that the board has the same height difference as other girders. The board shall be screwed and glued to the girder in the door opening. The board is used for subsequent installation of a threshold or cover moulding.

For detailed information, order our installation instructions and DVD.

System 3000

System 7000

38

Examples of installations

Project: Gåshaga, 48,000 m2, Lidingö

Client: Skanska AB

Project: Sjölyststranda, 9,000 m2, Oslo

Client: Veidekke ASA


Client: Skanska AB

Project: Lillåudden, 12,000 m2, Västerås

Client: PEAB AB/Mimer AB

Project: Hamar Bryggeri, 12,000 m2, Hamar

Client: Backe-Gruppen AS

Project: Kv. Mältplåten, 6,000 m2, Stockholm

Client: Skanska AB

Project: Sentrumgården, Bodö 14,000 m2

Client: Barlindhaug AS/Skanska AS

38 39

Examples of installations


Client: Skanska AB

Project: Kv. Hjässan, 9,000 m2, Halmstad

Client: NCC AB/Anjo Bygg AB

Project: Kv. Amnetisten, 9,000 m2, Solna

Client: Skanska AB

Project: Sannegårdshamnen, 13,500 m2, Göteborg

Client: JM AB

Project: Kv. Tastagate, 3,000 m2, Stavanger

Client: Skanska AS

Project: Hotell Haga, 4,500 m2, Stockholm

Client: PEAB AB

Project: Norconsult, 3,100 m2, Sandvika

Client: AF Skandinavia AS

Project: Kv. Kajkanten, 7,200 m2, Göteborg

Client: JM AB

See Granab's reference list for more projects.

Bygg- och Miljöteknik Granab ABPhone: +46 (0) 322-66 76 50 Fax: +46 (0) 322-66 76 55

E-mail: [email protected] www.granab.se

Mailing address: P.O.Box 172 SE-447 24 Vårgårda Sweden

Street address: Verkstadsgatan 4 Vårgårda, Sweden

Vers

ion

7. O

ctob

er 2

008

Lay

out:

blom

ill.s

e

Pri

ntin

g: R

ydin

s Tr

ycke

ri A

B

granab subfloor systemsgranab.se/oldsite/engelsk/download/katalog_gb.pdf · granab subfloor systems...

Documents