Verified by manufacturer 4 months ago
BBA Agrément Certificate
Certificate type
EPD
Certificate type
Low resistance vapour permeable air barrier roofing underlay.
Pitched roofing underlay applications.
Daltex® RoofTX® Optima is a low resistance vapour permeable air barrier roofing underlay. It is durable, flexible and lightweight allowing for easy installation, and offers temporary protection against wind driven rain, snow and dust.
Features and benefits:
Rolls should be stored flat on a clean, level surface and kept under cover. Once the underlay is applied to the roof, the primary roof covering should be installed within one month.
Method of installation:
The membrane should be installed as detailed in national building regulations and relevant agreement certification for this product. The membrane should be unrolled across the roof colour side up and draped a minimum of 150 mm onto the proprietary eaves carrier. The membrane should be fixed to the rafters or boarded sarking, subsequent rows should be lapped by 150 mm to shed water out and down the slope. Adjacent rolls should be lapped by 100 mm.
Color | Beige Black Blue Brown Cream |
Material | Polypropylene |
Length | 50000 mm |
Width | 1500 mm |
Warranty description | Other |
Uniclass | |
CAWS | H60/105 Clay roof tiling H60/120 Concrete roof tiling H61/105 Roof slating H62/125 Roof slating H62/105 Roof slating H62/145 Roof slating H64/110 Wood shingle/ shake roofing H65/125 Reconstituted slate roof tiling H65/115 Concrete roof tiling H65/135 Ceramic slate roof tiling H65/105 Clay roof tiling H67/110 Metal roof tiling H60/3 Roof tiling H61/5 Roof slating H62/3 Roof slating H67/5 Metal roof tiling H65/5 Roof tiling H64/10 Wood shingle/ shake roofing |
Standard | To EN 13859-1. |
Class (minimum) | W1.Guidance for specification option: To EN 1928. |
Third-party certification | British Board of Agrément (BBA) certificate, UKCA approved. |
Elongation | To EN 12311-1, (MD/CD): 65/70% (before aging); 35/40% (after aging). |
Flexibility at low temperature | To EN 1109, No cracking at -40ºC. |
Mass per unit area | To EN 1849-2, 92 g/m² (+/- 10). |
Reaction to fire | To EN 11925-2, Class E, d2. |
Tear resistance | To EN 12310-1, 75 N (MD); 80 N (CD). |
TensileStrength | To EN 12311-1, (MD/CD): 230/125 N/50mm (before aging); 190/100 N/50mm (after aging). |
Water vapour resistance | To EN ISO 12572, 0.029 m (Sd) (+/- 0.01). |
Contains Red List materials | No |
Country of product manufacture | United Kingdom |
Material | Polypropylene |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 20 % |
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 |
---|---|---|
- | 1 | |
- | 1 |
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