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Sika® Liquid Applied Membrane (Warm Roof System with Sikalastic® -625 BMS)

Verified by manufacturer 3 months ago

Sika Limited Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • CCPI System

    CCPI System

    Certificate type

High performance reduced CO2 footprint polyurethane liquid applied waterproofing.

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+44 (0)1707 394444 Website

Application

For roof waterproofing solutions in both new construction and refurbishment projects.

  • For cost efficient life cycle extension of failing roofs.
  • For odour sensitive areas.
  • For insulated and non-insulated roof designs.

Description

A high performance polyurethane roof waterproofing system. Sikalastic®-625 BMS is a 1-part polyurethane,

reinforced, cold-applied liquid membrane. It provides a flexible, seamless waterproofing solution using Sika's unique i-Cure technology and selected sustainable raw materials derived from renewable sources, thereby reducing the product's carbon footprint.


System includes:

  • Waterproofing (Top Coat): Sikalastic®-625 BMS.
  • Waterproofing (Reinforcement): Sika® Reemat Premium.
  • Waterproofing (Base Coat): Sikalastic®-625 BMS Base Coat
  • Carrier Layer: S-Vap 5000E SA.
  • Insulation Primer: Primer 600/610.
  • Insulation: Sikatherm® PIR GT Insulation / Sikatherm® PIR GT Tapered Insulation / Sikatherm® MW DD Insulation / Sikatherm® MW DD Tapered Insulation.
  • Insulation Attachment: Sika® C-250 Spray / SikaRoof® Adhesive-200.
  • AVCL: S-Vap 5000E SA/Sikashield® VB SA-724 / SikaShield® VB P41 S 3 mm.
  • Primer: Primer 600/610.


- Protection layer:

S-Felt T-300 is a separation, levelling and protection layer made of polyester (PES).


-Waterproofing (top coat):

Sikalastic®-625 BMS is a cold-applied, one component, seamless, good elastic, UV stable and moisture-triggered polyurethane membrane with significantly reduced odour. It cures to form a seamless, durable and weather-resistant waterproofing solution for ballasted roof areas.


  • 1-Part ready to use.
  • Low maintenance.
  • Seamless.
  • Easy and quick application by brush, roller or spray.
  • Suitable for light foot traffic areas (maintenance walkways).
  • Vapour permeable.
  • Good UV resistance and colour stability.
  • Retains flexibility at low temperatures.
  • Cold applied - requires no heat or flame.
  • Moisture triggered technology develops early rain resistance.
  • Low odour and renewable raw materials content.
  • Good elastic properties.


-Waterproofing (reinforcement):

Sika® Reemat Premium is a glass fibre mat reinforcement for Sikalastic® -625 BMS and Sikalastic® Liquid Applied Membrane systems.


-Waterproofing (base coat):

One-part low odour polyurethane liquid applied base coat for use in conjunction with Sikalastic® -625 BMS systems.


-Carrier Layer:

  • S-Vap 5000E SA is a multi-layer self-adhesive vapour control layer made of polymer modified bitumen with a glass-fibre mat reinforcement and an aluminium foil as top layer.


- 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).


- AVCL:

  • SikaBit® VB SA-724 is an SBS modified bituminous, self-adhesive 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.
  • S-Vap 5000E SA is a multi-layer self-adhesive 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 600: Synthetic rubber and resins based primer.
  • Primer-610 Spray: Solvent-based synthetic-rubber bonding agent in a pressurized canister system.


Approvals/ Standards:

  • BBA Certificate - 16/5294.
  • 35% certified reduction in greenhouse gas emissions with trusted TÜV Rheinland verification.
  • Fire Testing to EN 13501-5 (Classification Brooft4) - Sikalastic®-625 BMS, Warrington Fire, Report No. 23465B, 23465A.
  • Olfasense - Report Number SIKA24A.

General information

Color

Grey

Material

Polyurethane

Uniclass

Ss_30_40_30_43 Liquid-applied warm roof covering systemsPrimary
Ss_45_40_47_28 Extensive green roof systems

CAWS

Q37/130 Extensive green roof

J31/120 Warm deck roof coating

J31/10 Warm deck roof coating

Product range

Roofing

Specification data - Liquid-applied warm roof covering systems

Preparation

-

Horizontal work

SikaRoof® Primer 600.

Sika® Primer 610 Spray.

Manufacturer guidance

Only required if using a self-adhesive AVCL as a temporary waterproofing layer.

Skirtings and vertical work

SikaRoof® Primer 600.

Sika® Primer 610 Spray.

Air and vapour control layer

S-Vap 5000E SA.

SikaBit® VB SA-724.

Insulation

-

Type

Sikatherm® MW DD Insulation.

Sikatherm® MW DD Tapered Insulation.

Sikatherm® PIR GT Insulation.

Sikatherm® PIR GT Tapered Insulation.

Fixing

SikaRoof® Adhesive-200.

Sika® C-250 Spray.

Carrier membrane

-

Type

S-Vap 5000E SA.

Fixing

Self-adhesive.

Liquid-applied waterproofing

-

Type

Sika® Decothane Root Resistant Top Coat and Sika® Decothane Root Resistant Base Coat

Reinforcement

Sika® Reemat Premium.

Surface treatment

SikaRoof® Protection Fleece P-225 UK and 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.

SikaRoof® Protection Fleece P-225 UK and 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.


System accessories

SikaPad® Paving Support Pads.

SikaRoof® Light.

SikaRoof® Lightning Conductor Clip CT.

Sika® Liquid Plastics Constant Force Post.

Sika® Liquid Plastics Decotrim®.

Sika® Liquid Plastics Flat Roof Outlets.

Sika® Liquid Plastics Versirail.

Sustainability data

Material

Polyurethane

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
-

1

IFC
-

1

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

Sikalastic-625 BMS BBA

CCPI System

CCPI System

CCPI Liquid Applied Roofing Systems

Literature

Sikalastic®-625 BMS Safety Data Sheet

Sikalastic®-625 BMS Safety Data Sheet

Sikalastic®-625 BMS Data Sheet

Sikalastic®-625 BMS Data Sheet

Sikalastic 625 BMS

Sikalastic 625 BMS

LIQUID APPLIED SOLUTIONS FOR ROOFS WALKWAYS AND BALCONIES

LIQUID APPLIED SOLUTIONS FOR ROOFS WALKWAYS AND BALCONIES

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