In warm pitched roofs, Tyvek® and AirGuard® membranes protect insulation and reduce humidity, thus improving energy efficiency. Insulation is placed at rafter level, creating a thermal envelope that minimizes heat loss and condensation risk.
Common types of insulation include rigid boards and breathable batt insulation, sometimes also ensuring a continuous layer above rafters, with detailed junctions and penetrations for performance. Requirements include well-fitted insulation meeting building regulations' R-values, an Air and Vapour Control Layer (AVCL) for humidity management and airtightness to prevent moisture build-up and condensation.
Addressing WARM PITCHED ROOF risks with Tyvek® Supro and Supro Plus
Tyvek® Supro and Supro Plus are breathable roofing underlays that allow moisture vapour to escape while blocking rain, managing condensation, and maintaining insulation. Tyvek® Supro Plus includes adhesive lap tape to enhance wind resistance and airtightness. Key features are Class W1 water resistance, high strength, and effective vapour permeability.
Benefits for stakeholders include:
Addressing WARM PITCHED ROOF risks with AirGuard® Products
The AirGuard® range enhances thermal performance and moisture control. AirGuard® Reflective reflects heat back, improving thermal efficiency and reducing heating costs, while AirGuard® Control prevents moisture ingress and maintains controlled moisture levels within the roof assembly. Benefits for stakeholders include:
Tyvek® Breather Membranes: Supro/Supro Plus
Tyvek® Supro is the market-leading breather membrane and is a water-resistant membrane suitable for all supported and unsupported pitched roof applications in commercial and residential buildings.
Tyvek® and AirGuard® sealing tapes and accessories are specifically designed to complement Tyvek® breather membranes and AirGuard® air and vapour control membranes. They help to seal the building envelope, offering optimal airtightness, energy efficiency, long-term performance and durability.
An AirGuard® vapour control layer can significantly reduce heat loss and increase energy efficiency. By controlling heat transfer and reflecting heat inside the building, they help keep buildings cool in summer, and warm in winter.