Tyvek Supro - Breathable Roof Underlay Felt - 145gsm - 50m x 1m / 50m x 1.5m

Tyvek Supro - Breathable Roof Underlay Felt - 145gsm - 50m x 1m / 50m x 1.5m is a roof membrane or underlay used beneath the external roof covering, helping protect the roof build-up from wind-driven rain while supporting moisture control.

It sits below tiles, slates or metal roofing and above rafters, boarding or insulation depending on the roof design. Correct laps, sealing tapes, eaves support trays and ventilation strategy are important for performance.

Best for

• Secondary weather protection beneath tiles, slates or metal roof coverings
• Moisture control and airflow strategies in warm, cold or hybrid pitched roofs

Key features

• Sits beneath tiles/slates and above rafters, insulation or roof deck depending on the roof build-up
• Brand: Tyvek
• Durable underlay reinforced with a laminated Polypropylene nonwoven layer
• Can be used in all supported and unsupported pitched roof applications, including warm, hybrid and cold roofs
• Specially designed for the rough installation related conditions of fully boarded roofs
• Composition: Composite of High Density Polyethylene and Polypropylene
• Roll Weight: 145 gr/ m²
• UV exposure: 4 months
• Functional layer thickness:450 / 220 micro m

Used with / Compatible with

• Tiles, slates, metal roof coverings, battens, rafters, insulation, eaves trays and ventilation components
• Lap tapes, butyl tapes, sealants and nail sealing accessories where specified

Things to consider before buying

• Confirm whether the roof design needs ventilation, a vapour control layer or taped laps
• Follow the manufacturer's minimum lap, drape and fixing requirements
• Use eaves trays, tapes, sealants or nail sealing products where specified