Tyvek® Supro – Breather Roof Underlay
Verified by manufacturer 25 days ago
BBA Agrément Certificate
Certificate type
Breathable roof underlay
Application
- Suitable for use in supported or unsupported pitched roof assemblies, including those without eaves or ridge ventilation.
- For use in warm, hybrid or cold roofs.
- For secondary external protection of rain screened walls, tiled or profiled metal roofs and suspended timber floors.
Description
Water resistant, vapour permeable, reinforced heavyweight membrane.
Features and benefits:
- Type LR underlay to BS 5250.
- Spunbonded polyethylene and polypropylene composition.
- Head of water sustained without penetration (to BS 20811): 2 m.
- Complies fully with BS 5534:2014 Annex A for UK Wind Zones 1–5.
General information
Color | Grey |
Finish | Textured |
Material | Polyethylene Polypropylene |
Shape | Other |
Length | 50000 mm |
Width | 1000 mm 1500 mm 3000 mm |
Warranty description | 15 year |
Uniclass | |
CAWS | H20/10 Sheet cladding H20/155 Sheet cladding (attached to timber battens) H20/150 Sheet cladding (attached to metal support systems) H21/10 Vertical timber weatherboarding H21/110 Vertical timber weatherboarding H21/20 Breather membrane H21/130 Breather membrane H21/15 Horizontal timber weatherboarding H21/116 Horizontal timber weatherboarding H21/115 Vertical timber weatherboarding H21/111 Horizontal timber weatherboarding H30/10 Fibre cement H30/110 Fibre cement H30/50 Breather membrane H30/120 Fibre cement H30/350 Breather membrane H31/10 Metal H31/280 Breather membrane H31/55 Breather membrane H60/10 Vertical tiling H60/105 Clay roof tiling H60/110 Clay roof tiling with counterbattens H60/155 Concrete vertical tiling H60/3 Roof tiling H60/5 Roof tiling with counterbattens H60/120 Concrete roof tiling H60/125 Concrete roof tiling with counterbattens H60/145 Clay vertical tiling H61/10 Vertical slating H61/105 Roof slating H61/110 Roof slating with counterbattens H61/3 Roof slating H61/120 Vertical slating H62/10 Vertical slating H62/105 Roof slating H62/110 Roof slating with counterbattens H62/5 Roof slating with counterbattens H62/3 Roof slating H62/140 Vertical slating H62/145 Roof slating H62/150 Roof slating with counterbattens H62/120 Vertical slating H62/125 Roof slating H62/130 Roof slating with counterbattens H64/10 Wood shingle/ shake roofing H64/110 Wood shingle/ shake roofing H64/120 Wood shingle/ shake roofing with counterbattens H64/5 Wood shingle/ shake roofing H64/130 Vertical wood shingle/ shakes H64/15 Vertical wood shingle/ shakes H65/10 Reconstituted slate roof tiling H65/105 Clay roof tiling H65/110 Clay roof tiling with counterbattens H65/5 Roof tiling H65/8 Reconstituted slate roof tiling H65/3 Roof tiling H65/130 Reconstituted slate roof tiling with counterbattens H65/135 Ceramic slate roof tiling H65/140 Ceramic slate roof tiling with counterbattens H65/115 Concrete roof tiling H65/120 Concrete roof tiling with counterbattens H65/125 Reconstituted slate roof tiling H67/110 Metal roof tiling H67/120 Metal roof tiling with counterbattens H67/130 Metal vertical tiling H67/8 Metal vertical tiling H67/5 Metal roof tiling H92/120 Rainscreen cladding K20/150 Battened timber board floating floor K20/20 Battened timber board floating floor K21/111 Wood floating floor M30/265 Building paper P10/65 Breather membrane P10/320 Breather membrane |
Specification data - Vapour-permeable sheets
Standard | To BS EN 13859-2. |
Third-party certification | British Board of Agrément (BBA) Certificate. |
Class (minimum) | W1. |
Material | Polypropylene.Polyethylene. |
Form | Spun-bonded. |
Weight (minimum) | 145 g/m². |
Thickness (minimum) | 0.45 mm. |
Accessories | Tyvek® 2060B Tape. Guidance for specification option: Single sided tape for sealing overlaps in Tyvek® membranes and making good around penetrations, pipework, windows and door openings. Very durable ensuring long term performance. Roll size: 75mm x 25m. Double sided. For sealing to masonry, metal, plastics or wood, at laps or perimeters. Tyvek® Double Sided Acrylic Tape. Guidance for specification option: Double sided acrylic tape for sealing laps in Tyvek® membrane and bonding to smooth surfaces. Excellent adhesion properties under extreme conditions. Strong initial tack. Roll size: 50mm x 25m. Tyvek® Butyl Tape. Guidance for specification option: Double sided butyl based sealant, used to seal fixing penetrations in a Tyvek® membrane and form a moisture and airtight seal between a Tyvek® membrane and most commonly used building materials. Tape is compatible with brickwork, blockwork, masonry, timber, metalwork and most plastic products. Roll sizes: 20mm x 30m, 50mm x 30m. Tyvek® Eaves Carrier. Guidance for specification option: Pre-formed, black, semi-rigid eaves protection sheet, for installation over the fascia board to offer support to the membrane. Recommended for long term durability against UV degradation from direct sunlight. Sheet size: 220mm x 1.3m. |
Water vapour permeability | ≤935 g/m² per day. |
Tear resistance (to BS EN 12310-1) | 180 N. |
Flammability (to DIN 4102) | B2. |
Performance characteristics | Water resistant. Vapour permeable. |
Sustainability data
Contains Red List materials | No |
Country of material origin | Germany |
Country of product manufacture | Germany |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.54 kg CO₂ eq/unit Self declared |
Recyclability | All packaging materials can be reused (e.g. pallets), |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
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 | - | 2 |
 Revit | - | 2 |
Third party certifications
Literature
Tyvek Technical Wall Manual 2022