Proctor Air® - Air/ Vapour Permeable Roofing Underlay
Verified by manufacturer 2 months ago
An air and vapour-permeable, highly water-resistant roofing underlay.
Application
For use as a pitched roof underlay (vapour-permeable roofing felt) fixed beneath tiles and slates.
Description
Proctor Air® is an air and vapour permeable, highly water resistant roofing underlay. Its characteristics allow even very complex pitched roofs to breathe, without the need for air gaps or secondary venting.
The high performance melt-blown core of Proctor Air allows natural air movement to ‘supercharge’ the passage of moisture vapour from the roof space, significantly reducing condensation in the roof space.
Features and benefits:
- Vapour-permeable.
- Fully air permeable.
- Highly water-resistant.
- More uniform airflow than vents.
- Wind uplift resistance complies with BS 5534.
- No VCL required.
- 15 year warranty.
- CE marked.
General information
Color | Purple |
Material | Polypropylene |
Shape | Rectangle |
Length | 50000 mm |
Width | 1000 mm 1500 mm |
Warranty description | 15 year |
Uniclass | |
CAWS | P10/320 Breather membrane H67/24 Vapour-permeable underlay H65/22 Vapour permeable underlay H61/22 Vapour-permeable underlay H60/22 Vapour-permeable underlay H65/235 Vapour-permeable underlay H62/235 Vapour-permeable underlay P10/65 Breather membrane H62/3 Roof slating H61/235 Vapour-permeable underlay H60/235 Vapour-permeable underlay H67/290 Vapour-permeable underlay |
Specification data - Vapour-permeable sheets
Standard | To EN 13859-1. |
Performance criteria | |
Water vapour properties | Water vapour resistance to EN ISO 12572, 0.02 m; 0.1 MN·s/g.Guidance for specification option: Hydrostatic Head of Water to ISO 811, 101.6 cm. |
Fire performance | Reaction to fire: To EN 13501-1, Class F. |
Tensile properties | Tensile strength before ageing to EN 12311-1, 420 N (MD); 336 N (CD). |
Class (minimum) | W1. |
Material | Polypropylene. |
Weight (minimum) | 170 g/m². |
Air permeability | To EN 12114, 35 m³/m².h.50Pa. |
Elongation to break | To EN 12311-1, 95% (MD); 94% (CD). |
Roll size | 1 x 50 m. 1.5 x 50 m. |
Tear resistance MD/CD | To EN 12310-1, 188 N (MD); 172 N (CD). |
Sustainability data
Recyclability | Recyclable Guidance for specification option: Polypropylene is recyclable. Mechanical recycling is the primary option, depending of the requirements of the application and the intended article specification. It can also be valorised for energy recovery, its high calorific value is around 44 MJ/kg. Polyolefins are neither biodegradable nor compostable. |
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 |
|---|---|---|
 IFC | - | 1 |
 Revit | - | 1 |
Literature
Proctor Air Product Literature
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