This advanced combination of low-emissivity membranes and AVCL technologies helps you create environments that are dry, warm and draught-free – and stay that way!
Internal walls and roofing are protected with AirGuard® Reflective. This 100% airtight vapour control layer (AVCL) has an emissivity rating of 0.05 and is installed with the metallised surface facing the building interior. With a high sd-value, it stops vapour transmission and prevents uncontrolled air filtration through the building fabric.
Roof insulation performance is improved significantly with Tyvek® Enercor® Roof. This high-quality roof underlay resists water and air penetration, yet allows moisture vapour to pass right through. Tyvek® Enercor® Roof has one of the lowest emissivity ratings on the market at just 0.15. This means it permanently reflects 85% of radiant heat.
Internal walls are protected with AirGuard® Reflective. This airtight vapour control layer (AVCL) helps to control moisture levels, and ensures that homes retain 95% of their heat.
External walls are protected with Tyvek® Reflex, a metallised membrane that reflects radiant heat and reduces heat loss.
Tyvek® Reflex is vapour-open, but wind-tight and water-resistant. Positioned on the cold side of traditional insulation, the metallised low- emissivity surface boosts thermal performance, giving you more comfort with less environmental impact. Tyvek® Reflex has one of the lowest emissivity ratings on the market at just 0.12. This means it reflects 88% of radiant heat. Tyvek® Reflex can be used in both timber- and metal-frame external walls, and is suitable for insulation upgrades, too.
DuPont™ Tyvek® low-emissivity membranes are fully BBA-certified and UKTFA-approved.
Even by itself, Tyvek® Reflex permits U-value reductions of up to 11%. When combined with AirGuard® Reflective, it permits reductions of up to 28%.
Alleviating Stud Size Issues
Stricter thermal regulations mean more insulation, so bigger stud sizes are often required to cope with the extra thickness. Since Tyvek® Reflex provides extra thermal resistance with next to no bulk, it helps alleviate this issue, too.
Designed specially for use with Tyvek® membranes, Tyvek® Metallised Tape and Tyvek® Butyl Tape can be used to seal the laps of the various products, and to fix them to timber, masonry or any other building surface.