ybs 166 foil-tec data sheet (both):layout 1 · foil-tec a b b c c joist end fitting recommendations...

Foil-Tec forTimber Frame Walls

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Foil-Tec Single forConcrete Floors

Foil-Tec Double forSuspended Floors

Joist end Fitting

Aluminium Foil Insulation forFoil-Tec

Unique Foil-Tec Saddle Clip

www.ybsinsulation.com

Foil-Tec Single is a multi-layer foil laminate, coated with nitrocellu-lose to provide a corrosion resistant insulation system.Foil-Tec Single is a high-performance material which acts creat-ing a low emissivity air space below the floor, thus reflecting the

heat back.Foil-Tec Single can be applied to enhance ‘U’ values in newbuild or refurbished building projects to meet and exceedcurrent Building Regulations.

In Suspended Floor Applications• Foil-Tec Single is rolled

out with the shiny side facingupwards, over the joists

• Foil-Tec Single is then nailed inplace through the Foil-TecSaddle Clips to main tainrequired air gap - 4 per m 2

• The horizontal joints areoverlapped by 100mm and are left open to allow anymoisture accumulation todissipate

• Foil-Tec SIngle must be brought up (behind the skirtingboard) to 75mm

• The decking is then fixed with screws (at 200mm centres)37mm into the joists

In Crawl Space Applications• Foil-Tec Double is rolled

out on the underside of the joiststhen stapled in place. Access tothe under side of the joists isgained via the crawl space.

• The horizontal joints areoverlapped by 100mm and are left open to allow anymoisture accumulation todissipate.

• Foil-Tec Double must be sealedaround the perimeter or broughtup above the floor deck.

For Concrete Floor Applications• Foil-Tec Single is rolled

out onto concrete floorwith shiny side facingupwards - leavingenough edge overlap for75mm lip to be left be-hind skirting

• Timber battens/joists(min 50mm x 50mm) arethen laid on top of theFoil-Tec Single, spacedat centres to suit theparticular flooring.

• The decking is then fixed with screws (at 200mm centres) into battens/joists providing 25mmpenetration into the 50mm wide battens/joists

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SuspendedFloor

Foil turned upbehind skirting


TimberFlooring Batten

Foil-TecSingle withfoil facingupwards (min 50mm

air gapabove)

Foil-TecSaddle

Clip

Foil-Tec Singlewith shiny sidefacing upwards

(min 50mm air gap above)

Aluminium Foil Insulation for Suspended and Concrete Floor Applications

Foil-Tec

A

B

B

CC

Joist End Fitting Recommendations

Make 2 x 75-100mm cuts in Foil-tec - same width asjoist. Then make one further cut, same width again, oneach side. Fold up flap(A), fold back flaps (B) and pullFoil-tec (C) up to meet wall. Fix to wall and fit skirtingboard over, concealing Foil-tec.

Foil-Tec Saddle Clip

All joints must over-lap by 100mm

NOT TO BE TAPED

Foil-Tec Double is a multi-layer foil laminate, coated with nitrocellulose to provide a corro-sion resistant insulation system.Foil-Tec Double is a high-performance material which acts creating a low emissivity airspace below the floor, thus reflecting the heat back.Foil-Tec Double can be applied to enhance ‘U’ values in new build or refurbishedbuilding projects to meet and exceed current Building Regulations.

• Foil-Tec Double is rolled out over the joists

• Foil-Tec Double is then nailed in place through the Foil-Tec

Saddle Clips to main tain required air gap - 4 per m 2

• The horizontal joints are overlapped by 100mm and are left open to allow anymoisture accumulation to dissipate

• Foil-Tec Double must be brought up (behind the skirting board) to 75mm

• The decking is then fixed with screws (at 200mm centres) 37mm into the joists

For technical information please call:

0871 917 0044*(*Calls are charged at 10p per minute from a UK BT landline. Other networks may vary.)

SuspendedFloor


Foil-Tec Double(min 50mm air gap above)

Flooring U-Values(recessed by 50mm)Perimeter Length U-Value to Area Ratio W/m2K

0.2 0.24

0.4 0.30

0.6 0.33

0.8 0.34

1.0 0.36


0.2 0.24

0.4 0.35

0.6 0.41

0.8 0.44

1.0 0.47


0.2 0.22

0.4 0.37

0.6 0.30

0.8 0.31

1.0 0.32


0.2 0.22

0.4 0.30

0.6 0.35

0.8 0.38

1.0 0.40

The heat loss in a floor is greater at the exposedperimeter edge of the floor. To calculate the U-Value, theexposed perimeter edge to area ratio needs to be workedout e.g. - a 100m2 area, semi-detached house with 3external walls of 10m each has a perimeter edge to arearatio of 0.3 (i.e. 30m -: 100m2=0.3) which, using Foil-TecSingle, gives a U-Value of 0.3 W/m2K.

Foil-TecDouble

The heat loss in a floor is greater at the exposedperimeter edge of the floor. To calculate the U-Value, theexposed perimeter edge to area ratio needs to be workedout e.g. - a 100m2 area, semi-detached house with 3external walls of 10m each has a perimeter edge to arearatio of 0.3 (i.e. 30m -: 100m2=0.3) Overall thermaltransmittance (U-value) of suspended floors should becalculated using BS EN ISO 13370.In many cases Foiltec Double used in suspended timberfloors will meet Building Regulations requirements with noadditional measures.Please contact YBS Insulation for a U-Value calculation.

Foil-TecSingle

Foil-Tec - Technical SpecificationFire Properties Foil face meets Class 1

Thermal Resistance of cavity at 50mm 1.327 M2 K/W

Environmental CFC & HCFC Free

Dimensions Thickness less than 1mm

Width 1m, 1.5m

Length 50m roll

Technical References• Building Regulations 2000 Approved Document LI, L2 Building

Standards Part J.

• BS EN ISO 6946 Thermal Resistance Calculation Downward

Heat Flow.

• BRE publication ‘Thermal Insulation: Avoiding the risks’.

• BS EN ISO 13370 - Heat Transfer via The Ground Calculation

Method.

Semi Detached House

10m100m2

Area

10m

10m

50mm Cavity

Minimum100mm Cavity

Minimum100mm Cavity

100mm Cavity

Flooring U-Values(Crawl Space)Perimeter Length U-Value to Area Ratio W/m2K

0.2 0.17

0.4 0.21

0.6 0.23

0.8 0.25

1.0 0.26

100mm Cavity

100mm Cavity

50mm Cavity

Foil-Tec is a highly reflective and robust vapour controllayer.YBS Insulation has developed this product to increase thethermal performance of both walls and roofs.

Foil-Tec provides additional strength and thermalperformance over conventional vapour control layer materialgiving the added benefit of a service cavity.

Insulating Vapour Control LayerFoil-Tec

• Foil-Tec has a high Vapour resistance.

• Helps to reduce condensation risk inaccordance with BS 5250: 2002.

• Reduces air leakage when used in conjunctionwith ThermaWrap Foil Tape as required byBuilding Regulations.

• The low emissivity reflective properties ofFoil-Tec increases the thermal performance ofthe structure in which it is installed.

• Foil-Tec comes with a corrosion and damageresistant surface.

• Foil-Tec has excellent nail tear resistance.

• Foil-Tec is a tough and durable material with ahigh burst strength.

• Foil-Tec is easy to cut, lightweight and easy tohandle with no protective clothing.

Thickness Thermal ThermalConductivity Resistance

Outside surface (mm) (W/mK) (m2K/W)resistance - - 0.040

Brick, External 102.50 0.770 0.133bridged by 17.2% Mortar (102.5mm)

BF-FR Cavity 50.00 - 0.665

BF-FR Bubble 4.00 - 0.125

OSB board 9.00 0.130 0.069

Mineral Fibre 140.00 0.044 3.182bridged by 15% Timber (140mm)

Foil-Tec vapour control - - -

Batten Cavity 25.00 - 0.665

Plasterboard 12.50 0.190 0.066

Inside surface resistance - - 0.130

U-value, Combined Method: 0.23W/m2K


(mm) (W/mK) (m2K/W)- - 0.040

102.50 0.770 0.133bridged by 17.2% Mortar (102.5mm)

50.00 - 0.665

4.00 - 0.125

9.00 0.130 0.069

89.00 0.038 2.342bridged by 15% Timber (89.0mm)

- - -

25.00 - 0.665

12.50 0.190 0.066

- - 0.130


With Brick U-Value B to 0.2789mm stud - rock fibre


(mm) (W/mK) (m2K/W)- - 0.040

102.50 0.770 0.133bridged by 17.2% Mortar (102.5mm)

50.00 - 0.665

4.00 - 0.125

9.00 0.130 0.069

89.00 0.040 2.225bridged by 15% Timber (95.0mm)

- - -

25.00 - 0.665

12.50 0.190 0.066

- - 0.130


U-Value C to 0.2889mm stud - rock fibre

U-Value to 0.23140mm stud - glass fibre

A B C

© Yorkshire Building Services (WHITWELL) Ltd

Yorkshire Building Services (WHITWELL) LtdThe Crags Industrial Park, Morven Street, Creswell, Derbyshire S80 4AJ

Tel: 0844 99 100 44 Fax: 0844 99 100 55Technical Line: 0871 917 0044*

(*Calls are charged at 10p per minute from a UK BT landline. Other networks may vary.)

[email protected] www.ybsinsulation.com

DistributorFoil-Tec - Technical SpecificationFire Properties Foil face meets Class 1Thermal Resistance of vertical cavity at 25mm 0.665 M2 K/WThermal Resistance of cavity at 18o to 65o 0.454 M2 K/WEnvironmental CFC & HCFC FreeDimensions Thickness less than 1mm

Width 1m, 1.5mLength 50m roll

YB

S 1

66 V

4 0

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ybs 166 foil-tec data sheet (both):layout 1 · foil-tec a b b c c joist end fitting recommendations...

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