Proteus Low-K Water Reducing Layer
Verified by manufacturer 30 days ago
BBA Agrément Certificate
Certificate type
Water flow reducing layer.
Application
Loose lay over inverted insulation.
Can be used in an Inverted Roofing system in conjunction with Proteus Pro-Therm XPS / EPS and/or Proteus Upstand Board and gives improved U-values, without the need for an excessive thickness of insulation.
Description
Proteus Pro-Therm Low K is a water flow reducing layer, for use in an Inverted or Protected Membrane Roof. Conforms to CEN 1506946.
Features and benefits:
- Improves the performance of inverted insulation, for any required U-value.
- Waterproof.
- Breathable.
- Easy to handle.
- Lightweight.
- High water vapour permeability.
- Strong micro porous polypropylene.
- Recommended for use with Proteus Pro-Therm XPS Plus, Proteus Pro-Therm EPS Plus Premium & Proteus Pro-Therm Inverted VIP.
- Resists attack by mould and fungus growth, and will not encourage insect attack.
- UV–resistant and can be safely exposed on site for a period not exceeding four months.
General information
Color | White |
Finish | Micro-textured |
Material | Polypropylene |
Shape | Rectangle |
Length | 100000 mm |
Width | 3000 mm |
Height | 0.17 mm Guidance for specification option: Thickness. |
Warranty description | Other |
Uniclass | |
CAWS | Q37/335 Separation layer J31/390 Water flow-reducing layer J41/390 Water flow-reducing layer |
Specification data - Plastics sheets
Material | Polypropylene. |
Purpose | Water reducing layer. |
Physical properties | |
Weight (minimum) | 0.06 kg/m². |
Dimensions | |
Thickness (minimum) | 0.17 mm. |
Width (minimum) | 3 m. |
Roll length (minimum) | 100 m. |
Water vapour transmission | 0.01 Sd. |
Fitting | Unroll across the direction of the slope/ fall. |
Overlap | Minimum 300 mm, with the overlap covering the first sheet in the direction of fall. |
Details | Use separate pieces at all vertical details and penetrations, at all times achieving 300 mm minimum overlap, and fit flush with top of finishes. Star cut the membrane at outlet positions and turn down into the insulation board. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Recyclability | Alongside waterproofing membrane, product can be disposed as mixed landfill waste or used in waste-to-energy incineration at its end-of-life stage. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Third party certifications
BBA Agrément Certificate
BBA - Proteus Hot Melt® - Product Sheet 1
Literature
Product Data Sheet - Proteus Pro-Therm Low-K Water Reducing Layer
Case studies
Case Study - Proteus Cold Melt® & Proteus Pro-Living® - Cygnet Hospital
Case Study - Proteus Cold Melt® & Proteus Pro-Living® - KBS Builders Ltd, Greenwich
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