training manual - sps envirowall · 2018. 1. 25. · 6 spsenvirowall training manual mixing...

SPSenvirowall Training Manual 1

Training Manual

IntroductionThis installation manual has been specifically prepared for SPSEnvirowall system installers and is designed as a basis for general guidance. Information contained in this manual should be read in conjunction with the project specification and system drawings. For any specific project detailing or system issues contact should be made with SPSEnvirowall Technical Services.

The manual assumes that Standard Building Practices are adhered to at all times and that current Health and Safety legislation is applied in any on site practices.

4

sps envirowall Character Identity Initial Design Ideas 10/01/14

029 2083 9120 @carrickcreative carrickcreative.co.uk


Preparation

Material Storage

Insulation boards should be stored neatly on pallets undercover if possible. Please note that these boards are easily damaged and should only be used for the purpose intended, damage caused by poor handling may result in installation problems and an uneven finish.

Adhesives and Render products must be stored in dry, well ventilated areas, protected from heat and frost. The product will be supplied on pallets to ensure that no damp affects the bagged product. Beads and tracks should be stored in dry areas and kept flat to prevent buckling.

Site Preparation

Scaffold – where scaffolding is required allowance should be made for a space between the scaffolding and the façade so as to facilitate the rendering this would normally be 250mm plus the thickness of the system. An appropriate lift height should be constructed to ensure that the rendering of walls is at an ergonomic position. It should be noted that leaving a gap between the scaffolding and wall to facilitate rendering could pose a health and safety risk and a suitable method statement should be made to manage this risk.

Surface Treatment – the substrate that is to receive the insulated render system should be inspected and treated:

Loose surfaces- walls should be brushed to remove any loose materials

Fungicidal growth – any evident mould or plant growth should be treated with SPSEnvirowall Algicid fungicidal wash

Uneven substrate – excessively uneven (more than 20mm variation in a 1metre area)wall areas should be dubbed out using suitable dubbing compound material – contact SPSEnvirowall technical department for advice on suitable product. Walls dubbed out to provide a flat and even surface to accept the insulated system. Longer fixings may be required in areas that have been levelled to ensure the correct embedment depth is achieved.

Pull out tests should be carried out to determine the type, size and quantity of fixings per square metre of insulation.

Plumbing goods – rainwater pipes, waste pipes and soil pipes should be moved and adapted where possible to ensure that the walls are kept dry and protected during the system application and then reinstated after works are completed. SPSEnvirowall have a range of fixing options for replacement of rainwater goods available on request.

Check ground levels to ensure that no concrete driveways/ soil banking or other materials are above the DPC, check that the DPC is present and intact. If there are any concerns over DPC or starting level for the EWI system the client should be notified and preparatory works should be completed before the insulation boarding process is started.

4 SPSenvirowall Training Manual

Utilities – check that no utility equipment will be covered over or affected by the insulation system.

Satellite dish/ cable boxes/ security lights/ alarm boxes – agree procedure for safe removal and reinstatement. These works may require specialised contractors or permission from the service provider.

Paths, steps, windows and door frames should be protect-ed, floors, paths and walls with tarpaulins – render materials are liquid in nature and are prone to spillage, they can easily stain surfaces. Windows should be masked, usually with polythene held in place by low adhesive masking tape.

Cills and Verges – Cills should be checked to ensure that there will be a minimum 40mm overhang from the drip of the cill to the front edge of the render protected insulation. If this is not possible using the existing cill, then either a cill exten-sion, undercill or overcill should be fitted. Care should be taken to ensure the minimum 40mm overhang is achieved from the drip edge (normally a cill 50mm deeper than the insulation system will provide sufficient overhang) and a sufficient fall is provided. Similar over hangs should also be achieved at the soffit. If there is no soffit or it is of insufficient depth then a verge trim will be required. SPS Envirowall have a range of verge trims sections and connections to ensure a complete sealed system. If in doubt please contact the SPS Envirowall technical department.

Water – water is an essential requirement for the system, a supply of clean water must be made available, impure and dirty water will affect the consistency and final colour of the render products.

...\SPSenvirowall-WS2Dash-13.dgn 26/01/2015 11:20:07

...\SPSenvirowall-WS2Dash-13.dgn 26/01/2015 11:22:26


Base Profiles

• Fixing at 300mm

• Fitted at the DPC Level on a line agreed by the contractor, no lower than 150mm above ground

• Use Base profile connectors to join lengths

• If this results in track being fitted above DPC, then extruded polystrene insulation should be fitted below the DPC

See SPSenvirowall standard details

300mm

150mm Min

DCP Level


Mixing Adhesive

The Envirobed adhesive is a 25kg bagged product; mix with clean, fresh water at a rate of approximately 4.5/5Ltrs per 25kg bag using a paddle mixer or sutable drill with a whisk attachment in a suitable tub to accommodate the material.

Mix for 5 minutes, then allow the material to stand for 5 minutes before mixing again, this allows the chemical additive to dissolve and activate. It may be necessary to remix the material after it has been standing for some time, but do not add further water. Do not use any Envirobed that has started to set.

SPSenvirowall Training Manual 7 Dot and Dab

Dot and dab – first distribute a band of adhesive around the circumference of the board section, keep the adhesive slightly back from the edge as it is important not to have adhesive squeezed out onto the front or sides of the board. Then apply dabs of adhesive with regular spacing, sized to ensure that when the board is pressed to the substrate there is a minimum of 40% are adhesively covered area in contact with the substrate. Typically, 5 evenly spaced dabs would suffice on the back of a 1000mm x 500mm insulation board, 6 dabs on a 1200mm x 600mm board.

Applying Adhesive

The adhesive is applied to the board, not to the wall, two methods used – notch trowel or dot and dab. The notch trowel method is used on even substrates, the dot and dab method is used to adjust the thickness of the bedding mortar to accommodate localised deviations in the substrate.

Notch Trowel – work in the Envirobed mortar in a thin pressed trowelled coat across the whole surface of the section of insulation board and then run a 10x12mm toothed trowel across the board, scraping off the surplus material, ensure that 100% of the board has the series of notches across it, this will ensure the coverage and adhesion of the board.

1000mm x 500mm board - 5 Dabs


100% of board to have mortar notches to ensure coverage and adhesion

Applying Adhesive

The adhesive is applied to the board, not to the wall, two methods used - notch trowel or dot and dab.

The notch trowel method is used on even substrates, the dot and dab method is used to adjust the thickness of the bedding mortar to accommodate localised deviations in the substrate.

Notch Trowel - work in the Envirobed mortar in a thin pressed trowelled coat across the whole surface of the section of insulation board and then run a 10x12mm toothed trowel across the board, scraping off the surplus material, ensure that 100% of the board had the series of notches across it, this will ensure the coverage and adhesion of the board.


Dot and Dab

Dot and dab – first distribute a band of adhesive around the circumference of the board section, keep the adhesive slightly back from the edge as it is important not to have adhesive squeezed out onto the front or sides of the board. Then apply dabs of adhesive with regular spacing, sized to ensure that when the board is pressed to the substrate there is a minimum of 40% are adhesively covered area in contact with the substrate. Typically, 5 evenly spaced dabs would suffice on the back of a 1000mm x 500mm insulation board, 6 dabs on a 1200mm x 600mm board.

Applying Adhesive

The adhesive is applied to the board, not to the wall, two methods used – notch trowel or dot and dab. The notch trowel method is used on even substrates, the dot and dab method is used to adjust the thickness of the bedding mortar to accommodate localised deviations in the substrate.

Notch Trowel – work in the Envirobed mortar in a thin pressed trowelled coat across the whole surface of the section of insulation board and then run a 10x12mm toothed trowel across the board, scraping off the surplus material, ensure that 100% of the board has the series of notches across it, this will ensure the coverage and adhesion of the board.



100% of board to have mortar notches to ensure coverage and adhesion

Dot and dabFirst distribute a band of adhesive around the circumference of the board section, keep from the edge as it is important not to have adhesive squeezed out onto the front or sides of the board. Then apply dabs of adhesive with regular spacing, sized to ensure that when the board is pressed to the substarte there is a minimum of 40% are adhesively covered area in contact with the substrate. Typically, 5 evenly spaced dabs would be suffice on the back of 100mm x 500mm insulation board, 6 dabs on a 1200mm x 600mm board.

With this methos of adhesion, please ensure an allowance for the adhesive thickness when calculating the length of fixing.


C

M

Y

CM

MY

CY

CMY

K

Page 10.pdf 1 25/02/2015 16:04:28

Insulation Boards

Insulations Boards are cut to size using a fine tooth saw, or a hot wire cutter. Boards are either adhesively or mechanically fixed only


Cross Bonding

All internal and external corners to be cross bonded


C

M

Y

CM

MY

CY

CMY

K

Page 12.pdf 1 25/02/2015 15:55:34

Cutting

Cut L shaped boards to all openings


Corners

Rasp all corners to give good lines.

Cutting

Cut L Shapes to all openings.

Corners

Rasp all corners to give good lines

SPSenvirowall Training Manual 13 Fixing

Use fixing recommended for substrate, if masonary, 35mm embedment minimum needed.

RaspingRasp insulation joints flat - be careful that waste doesn’t get into drains, waterways etc.

Rasping

Rasp Insulation joints flats - be careful that waste doens’t get into drains, waterways etc.

All joints greater than 2mm should be filled with expanding foam and rasped flat when dry


300mm Max At internal/external

corners and openings

Fixing

Please refer to SPSenvirowall for fixing patterns suitable for the substrate and exposure conditions

Use fixing recommended for substrate, if masonary, 35mm embedment miniumum needed.

Extra fixings needed around all openings, also internal and external corners as shown


APU Beads

Fit APU Beads at this stage if required.

Mixing

Mix Envirorend with 4.5lts of clean water.

Mixing

Mix Envirorend/retrobase with 4.5/5.0 ltrs of clean water


C

M

Y

CM

MY

CY

CMY

K

page 17.pdf 1 25/02/2015 16:14:23

Sealing

Refer to SPSenvirowall standard details for sealing of windows and other interfaces

All openings and interfaces should be sealed with appropriate method

• Sealing Tape

• APU Bead

• Silicone Mastic

• Flashing

Application

Apply Envirorend to reveals and face insulation 3-5mm thick.

Apply retrobase to reveals and face insulation 6-8mm thick.


Internal Angles

Fit 200mm of mesh into all internal angles as shown, this will prevent cracking at internal corners of the reveals.

C

M

Y

CM

MY

CY

CMY

K

Page 20.pdf 1 25/02/2015 16:17:25


Angle Beads

Cut angle beads to length and fit as shown

C

M

Y

CM

MY

CY

CMY

K

Page 20...pdf 1 25/02/2015 16:18:33


C

M

Y

CM

MY

CY

CMY

K

page 21.pdf 1 25/02/2015 16:20:40

Angle Beads

Start with the head bead, set level, plumb and square to frame

Ensure there is a back fall on the render at the window head and that the render does not obstruct the window from opening.


C

M

Y

CM

MY

CY

CMY

K

page 22.pdf 1 25/02/2015 16:22:02

Corners

Apply Envirorend to corners


Stress Patch

Mesh

• Apply mesh with minimum 100mm overlap around corners

• Lightly flatten with spatula

• Keep mesh in top 1/3 of basecoat

• Continue applying mesh in vertical drops with all laps at a minimum of 100mm

• Fit stress patches to all corner openings at 45o angle as shown in the drawing. (500mm x 300mm minimum)


Stress Patches

All stress patches minimum size shown, these tend to be fitted to all corners.

Mesh

Continue applying mesh in vertical drops with all laps a minimum of 100mm, fit stress patches to areas shown at a 45 degree angle.

500mm

230mm

Stress Patches

All stress patches minimum size shown, these tend to be fitted to all corners.

300mm


C

M

Y

CM

MY

CY

CMY

K

page 25.pdf 1 25/02/2015 16:25:33

Slurry Coat

Leave approximately 24hrs then apply a slurry coat 1.5mm thick


C

M

Y

CM

MY

CY

CMY

K

page 26.pdf 1 25/02/2015 16:26:38

Basecoat Finishing

Cover 100% including reveals

For textured top coat

After 20 minutes approx, use a fine sponge float and water to give a flat finish.

For Dash Finish

Create a fine key using a stiff brush.


C

M

Y

CM

MY

CY

CMY

K

page 27.pdf 1 25/02/2015 16:27:49

Textured Finish Mix PrimerMix primer before use, colour to match top coat.

PrimingApply to 100% of area

26 SPSenvirowall Training ManualApplication

Apply to the area only to the grain thickness.

Top Coat

Mix top coat for 2 minutes. 250ml of water needed per 25kg Tub may be added if needed.

Textured Top Coat

• Mix top coat for 2 minutes. (250ml of water needed per 25kg tub may be added if needed)

• Add upto a maximum of 250ml clean water to give desired consistency.


Application

Apply to the area only to the grain thickness.

Top Coat

Mix top coat for 2 minutes. 250ml of water needed per 25kg Tub may be added if needed.

Application

Apply to the area only to the grain thickness

28 SPSenvirowall Training ManualApplication

Using a 1mm float, with light pressure and small cicrcular motions follow the application pattern.

Corners/Angles

Use corner trowel to all corners and angles.

Corner/Angles

Use corner trowel to all corners and angles


C

M

Y

CM

MY

CY

CMY

K

Page 31.pdf 1 25/02/2015 16:29:13

Finishing Top Coat

Using a 1mm float, with light pressure and small circular motions in same direction as application


Finish

When application of topcaot is complete, remove all window protection

C

M

Y

CM

MY

CY

CMY

K

Page 32.pdf 1 25/02/2015 16:30:21


Envirodash Mixing

Mix Envirodash with 4.5/5.0 ltrs of clean water


Application

Apply dash reciever mortar to a thickness 6-8mm. Ensure correct corner profiles have been used.

C

M

Y

CM

MY

CY

CMY

K

page 26.pdf 1 25/02/2015 16:26:38


Final Application

Spar applied using ‘Spa Spade’ in a flicking motion. Apply 30-60cm from wall. Ensure even coverage, collect and reuse Spa where possible. Reveals can rendered flat or dashed if required. Clean all visible bead edges to leave crisp lines.

C

M

Y

CM

MY

CY

CMY

K

Page 37.pdf 1 25/02/2015 16:32:19


Cleaning

Ensure that any renders or finishes that have spilt onto floors, windows, other façade elements such as are cleaned away. Please refer to SPS Envirowall cleaning and maintenance manual or contact our technical department should you have difficulty in removing any unwanted finishes. Be careful not to damage painted, metal and glass surfaces as most of the products are abrasive.

Be careful when using power washers as they can damage the render finishes. Use mild detergents and soft brushes for removing dirt from surfaces. Contact SPS Envirowall for advice on more stubborn staining.

Should you require further information on any of our product or systems please visit our website www.spsenvirowall.co.uk or contact any of our branches details of which are on the back of this literature.


Notes

North BranchOrchard House, Aire Valley Business Centre, Keighley, West Yorkshire. BD21 3DU T. 01535 661 633F. 01535 661 933E. [email protected]

Wales BranchUnit 6, Fairfield Industrial Estate,Gwaelod Y Garth,Cardiff. CF15 8LA T. 0845 644 7081F. 0845 644 7082E. [email protected]

Midlands Branch25/26 Rosevale Road, Parkhouse Industrial Estate West, Newcastle Under Lyme, Staffordshire. ST5 7EF T. 0845 1300 983F. 0845 1300 984E. [email protected]

South East BranchUnit 9.Repton Close,Burnt Mills Industrial Estate,Basildon, Essex. SS13 1LU T. 01268 293 532F. 01268 281 823E. [email protected]

www.spsenvirowall.co.uk

Scotland Branch1 Elphinstone Square,Deans Industrial Estate, Livingston. EH54 8RG T. 01506 530 400F. 01535 661 933E. [email protected]

South West BranchUnit 14 Avondale Industrial Centre,West Town Road, Avonbank, Bristol.BS11 9DE T. 0845 226 2566 F. 0845 644 7082E. [email protected]

training manual - sps envirowall · 2018. 1. 25. · 6 spsenvirowall training manual mixing...

Documents