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Sika® Sarnafil Single Ply Membrane (Adhered Warm Roof System with Sika® Green Roof)

Verified by manufacturer 6 days ago

Sika Limited

Polyvinyl chloride (PVC) adhered membrane system for roof waterproofing.

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+44 (0)1707 394444 Website

Application

Bonded, roof waterproofing membrane for exposed roofs.

Description

A PVC, multi-layer, fully adhered, lacquered matt finish, weldable sheet membrane system with a glass fibre reinforcing inlay and polyester fleece backing for roof waterproofing. Contains ultraviolet light stabilizers and flame retardants to provide a colour stable, fast installation, low maintenance and durable membrane.


System includes:

  • Surface Finish: Sika® Extensive Green Roof System/ Sika® Bio-Diverse Roof System.
  • Protection Layer: SikaRoof® Protection Fleece P-225 UK.
  • Waterproofing: Sarnafil® G410-15 EL / G410-18 EL (Colour - Light Grey).
  • Waterproofing Attachment: SikaRoof® Adhesive-400 Spray/ Sarnacol®-2170 (subject to Sika® specification).
  • Insulation: Sikatherm® PIR GT Insulation/ Sikatherm® PIR GT Tapered Insulation/ Sikatherm® MW Insulation/ Sikatherm® MW Tapered Insulation.
  • Insulation Attachment: Sika® C250 Spray/ SikaRoof® Adhesive 200.
  • AVCL: SikaShield® VB E71 PE SA 2,4 mm/ SikaShield® VB P41 S 3mm / S-Vap 5000E SA.

  • Primer: Sika® Primer 610 Spray.


-Protection Layer:

SikaRoof® Protection Fleece P-225 UK protection fleece is a thick needle punched non-woven geotextile manufactured from 100% virgin polypropylene high tenancy fibres containing 1% active carbon black. Manufactured from a unique blend of high tenancy fibres providing class leading durability. Optimized for maximum strength, performance and UV stability. 


- Waterproofing:

Sarnafil® G 410- EL is a multi-layer, synthetic roof waterproofing sheet based on premium- quality polyvinyl chloride (PVC) with inlay of glass non-woven containing ultraviolet light stabilizers and flame retardant according to EN 13956.

  • A hot air weldable roof membrane, formulated for direct exposure and designed to use in all global climatic conditions.
  • Produced with an integral glass non-woven carrier for dimensional stability.
  • The membrane has a unique lacquer coating applied to the top of the membrane.
  • The product has no built-in stress at the time of production and has a fully encapsulated carrier with no risk to delamination or water-wicking. The dimensional stability is excellent.


- Waterproofing Attachment:

  • SikaRoof® Adhesive-400 Spray is a one-part, polyurethane based, moisture-curing, spray applied contact ashesive in a pressurized canister system.
  • Sarnacol®-2170 is a one-part, nitrile rubber based solvent contact adhesive.


- Insulation:

Sikatherm® PIR GT/Tapered is an insulation board for flat roofing. It is faced on both sides with a coated glass tissue bonded to the insulation core and produces a tough, durable, light weight insulation board.


Sikatherm® MW DD/Tapered is an insulation board, faced with a mineral fibre tissue, bonded to the insulation core during the manufacturing process. The core of Sikatherm is high performance mineral wool with a typical density of 220 kg/m³ (top layer).


- Insulation Attachment:

  • Sika® C-250 Spray is a one-part, polyurethane based, moisture-curing, spray applied insulation adhesive in a pressurised canister system.
  • SikaRoof® Adhesive-200 is a polyurethane 1- part, cold applied, foam adhesive that bonds insulation boards to various types of construction material substrates.


- AVCL:

  • SikaShield® VB E71 PE SA is an SBS modified bituminous, adhered air vapour control layer. It is reinforced with aluminium foil and a dimensionally stable non-woven polyester inlay. The underside has a removable liner over the adhesive compound for an easy application. It can be applied to wood, metal and concrete substrates. Top surface finish: sanded bitumen. Weight:~3.0 kg/m².
  • Sarnavap® 5000E SA is a multi-layer adhered vapour control layer made of polymer modified bitumen with a glass-fibre mat reinforcement and an aluminium foil as top layer.
  • SikaShield® VB P41 S 3 mm is an APP modified bituminous roofing air & vapour control layer with a thickness of 3 mm and flexible at -10 °C. It is reinforced with aluminium foil and glass fibre to provide a barrier to the passage of air and vapour. The top surface is coated with sand to improve the bond to insulation boards with cold adhesives. The underside of the product has a burn-off film for easy torch-application.


- Primer:

  • Primer-610 Spray: Solvent-based synthetic-rubber bonding agent in a pressurized canister system.

General information

Color

Grey

Finish

Matt

Material

PVC

Shape

Rectangle

Length

1.5 mm

1.8 mm

Width

2000 mm

Height

15000 mm

20000 mm

Uniclass

Ss_30_40_30_80 Single layer sheet warm roof covering systemsPrimary
Ss_45_40_47_28 Extensive green roof systems

CAWS

Q37/130 Extensive green roof

J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

Specification data - Single layer sheet warm roof covering systems

Preparation

-

Horizontal work

Sika® Primer 610 Spray.

Skirtings and vertical work

Sika® Primer 610 Spray.

Air and vapour control layer

-

Type

S-Vap 5000E SA.

SikaBit® VB SA-724.

Insulation

-

Type

Sikatherm® MW Insulation.

Sikatherm® MW Tapered Insulation.

Sikatherm® PIR GT Insulation.

Sikatherm® PIR GT Tapered Insulation.

Attachment

SikaRoof® Adhesive 200.

Sika® C250 Spray.

Waterproof covering

-

Type

Sarnafil® G410-15 EL.

Guidance for specification option:

Size (l x w): 20 x 2 m. Thickness: 1.5 mm.

Sarnafil® G410-18 EL.

Guidance for specification option:

Size (l x w): 15 x 2 m. Thickness: 1.8 mm.

Attachment

Sarnacol®-2170 (subject to Sika® specification).

SikaRoof® Adhesive-400 Spray (subject to Sika® specification).

Upper protection layer

SikaRoof® Protection Fleece P-225 UK.

Surface protection

Sika® Bio-Diverse Roof System.

Guidance for specification option:

A Biodiverse Green Roofing system is designed to enhance the specific requirements of local flora and fauna. As such, its construction above the Sarnafil membrane level is dependent on the client’s environmental objectives and any local planning constraints. 


The benefits of a biodiverse green roof include:

  • Little modification of the roof environment, ensuring the suitability for new or refurbishment applications.
  • Natural self-sustaining plant communities that require minimal care, irrigation and maintenance.
  • A thin layer of lightweight growing mediums, typically between 65mm and 150mm.
  • Suitability for use on roof slopes (from 0 to 35° slope), with measures possibly needed above 5°, pitches greater than 35° may be accommodated subject to design.

Sika® Extensive Green Roof System.

Guidance for specification option:

Extensive Green Roofing systems consist of lightweight, naturalistic planting that provides extensive plant cover with minimal maintenance and a wide range of benefits, including:

  • Little modification of the roof environment, ensuring suitability for new or refurbishment applications.
  • Naturalistic style planting systems, that require minimal care, irrigation and maintenance.
  • A thin layer of lightweight growing mediums, typically between 65mm and 150mm.
  • A wide range of grass, herbaceous, succulent and moss species, that establish self-sustaining plant communities.
  • Suitability for use on roof slopes (from 0 to 35° slope), with measures possibly needed above 5° Pitches greater than 35° may be accommodated subject to design.
  • Typically weighing 80 to 90 kg m². (saturated system weight) lighter variations can be specified, but the membrane will require independent attachment.

System accessories

Sarnacol® Batten Profile PVC.

Sarnafil® Constant Force Post.

Sarnafil® Decor Profile PVC.

Sarnafil® Liquid Detailing System.

Sarnafil® Metal PVC.

Sarnafil® PVC Walkway Tile.

Sarnafil® Rainwater Outlet Box Scupper PVC.

Sarnafil® Rainwater Outlet S-Drain PVC.

Sarnafil® S-Overflow PVC.

Sarnafil® S-Scupper PVC.

Sarnafil® Solar Panel Support Post.

Sarnafil® Versirail.

Sika SolaRoof®.

SikaPad® Paving Support Pads.

SikaRoof® Light SS.

SikaRoof® Lightning Conductor Clip CT.

Manufacturer guidance

Consult manufacturer for details on available ancillary products.

Standard

To BS EN 13956.

Top surface colour

Light grey (nearest RAL 7047).

Colour

Bottom surface: Dark grey.

BIM objects

BOS

NBS BIM Object Standard

This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.

Find out more about the NBS BIM Object Standard.

Platform Compatible Version
Revit
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1

IFC
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1

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