<p style="text-shadow: 2px 2px 5px rgba(0,0,0,1);">Renovation Above-Rafter Insulation</p>
RENOVATION: above-rafter insulation for roofs
Renovation with above-rafter insulation involves installing materials directly on rafters, creating a continuous thermal barrier that enhances energy efficiency and maximizes usable space. This method is beneficial for external roof renovations or structural repairs when internal work isn't feasible.
However, this technique carries risks, especially in moisture management. Without proper integration with breathable membranes, condensation issues may arise, leading to moisture buildup and structural damage. Insufficient ventilation worsens these risks, requiring careful consideration during installation.
Addressing RENOVATION challenges with DuPont™ Tyvek® and AirGuard® system solution
DuPont™ Tyvek® and AirGuard® can help you get the most out of renovation above-rafter insulation by protecting it from moisture and uncontrolled air leakage.
Moisture Protection
DuPont™ Tyvek® acts as a vapour-open membrane, allowing moisture to escape and minimizing the risk of condensation within the insulation layer.
DuPont™ AirGuard®: Functions as a vapour-closed membrane, providing effective vapour control to protect against moisture ingress, essential for certain insulation types.
Airtightness and Heat Loss Prevention
Both products significantly improve building envelope insulation by creating an airtight system, reducing heat loss during colder months.
Thermal Comfort Enhancement
The use of these membranes contributes to maintaining a comfortable indoor climate by improving thermal properties and reducing drafts.
Wind Tightness Layer
DuPont membranes serve as an effective wind tightness layer in above-rafter insulation systems, ensuring better overall performance of the insulation.
Advanced Moisture Management
DuPont™ Tyvek® AirGuard® Smart: This adaptive membrane can automatically adjust water vapour permeability in response to changing humidity levels, enhancing moisture management further. In dry conditions, it performs as traditional Air and Vapour Control Layer (AVCL), while allowing excess moisture to escape during periods of high humidity.
Read More About Our Membranes, Tapes and Accessories For Roof Applications (PDF)
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® & AirGuard® Sealing Tapes
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.
AirGuard®: Vapour Control Layer Solutions
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.
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