Polyfoam™ Slimline Zero Membrane - Water Flow Reducing Layer
Verified by manufacturer 4 months ago
BBA Agrément Certificate
Certificate type
ISO 45001 Health and Safety Management
Certificate type
ISO 9001 Quality Management
Certificate type
A thermally bonded tri-laminate of polypropylene.
Application
For use as a separating and water flow reducing layer (WFRL) in inverted flat roof systems and green roofs.
For full application details please refer to BBA certificate 17/5454.
Description
A high performance, thermally bonded tri-laminate of polypropylene; spunbonded (outer layers) and microporous (inner layer).
Features and benefits:
- It is used in combination with Polyfoam Roofboards (specified separately) as part of the Polyfoam Inverted Roof System for inverted and green roofs.
- Improves the thermal performance of protected membrane flat roofs by reducing the amount of rain water flowing between the insulation and the waterproofing membrane.
- Improves the thermal performance of inverted and green roofs.
- Waterproof and water vapour permeable.
- Enables thinner insulation and less ballast to be used.
- BBA certified.
Technical characteristics:
- Water resistance: able to resist a 1.5 m-head of water.
- Consult manufacturer's literature for further details.
Typical Project types:
- Mixed use
- Domestic
- Industrial
- Commercial
- Education
General information
Color | Black Grey |
Material | Polypropylene |
Shape | Rectangle |
Length | 100000 mm |
Width | 1500 mm |
Height | Bespoke |
Uniclass | |
CAWS | J41/10 Reinforced bitumen membrane warm deck roof covering J42/385 Filter layer |
Specification data - Plastics sheets
Material | Polypropylene.Guidance for specification option: 3-layer polypropylene. |
Purpose | Separating and water flow reducing layer (WFRL) in low moisture impact inverted and green roofs. |
Standard | To BS EN 13859; to EN 20811. |
Third-party certification | BBA Certificate 17/5454. |
Performance characteristics | |
Tensile strength (minimum) | MD: 185 N/50 mm; CD: 130 N/50 mm.Guidance for specification option: To EN 12311-1. 20 cm folded MD/ CD, to prEN 13859: 65 N/20cm. |
Tear resistance | 55 N/200 mm.Guidance for specification option: To EN 12310-1. |
Water vapour resistance (minimum) | 1200 g/m2·d.Guidance for specification option: Water resistance to EN 20811: 1.5 m of water head. Water vapour transmission (23ºC/ 85% humidity), Lyssy: 1200 g/m².d. |
Fire performance | To BS EN 13501-1, Class E. |
UV stabilization | To prEN 1397, up to four months. |
Physical properties | |
Colour | Black topside with grey underside. |
Weight (minimum) | 95 g/m². |
Dimensions | |
Width (minimum) | 1.5 m. |
Roll length (minimum) | 100 m. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Czechia |
Country of product manufacture | Czechia |
Material | Polypropylene |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | Manufacturer guidanceData not available. |
BIM objects
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 | - | 5 |
 IFC | - | 5 |
Third party certifications
BBA Agrément Certificate
BBA Agrément Certificate 17/5454 Product Sheet 2 - Inverted Roof System
ISO 45001 Health and Safety Management
ISO 45001:2018
ISO 9001 Quality Management
ISO 9001:2015