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DuPont™ Tyvek® AtticWrap™ 
The best of both worlds - an airtight attic and a fully vented roof DuPont™ Tyvek® AtticWrap™ is a revolutionary breathable membrane that helps create an airtight seal to reduce air leakage and energy loss through the roof. With a unique, metalized surface that reflects heat and a breathable structure to protect against the damaging effects of moisture build-up, DuPont™ Tyvek® AtticWrap™ helps keep attics warmer in the winter, cooler in the summer and drier all year-round.The result is an attic system that helps you deliver more comfortable and energy-efficient homes. Creating a sealed attic system provides several key advantages over traditional vented roof systems Cuts overall cooling and heating costsThe underside of DuPont™ Tyvek® AtticWrap™ is layered with a metalized material that creates a low-emissivity (low-e) surface to help reduce heat build-up in the summer and heat loss in the winter. Improves insulation performance Conventional roof ventilation promotes air travel through the attic which reduces the effectiveness of insulation. DuPont™ Tyvek® AtticWrap™ eliminates air movement through the attic and protects the installed R-value of attic insulation.Regulates attic temperature An airtight attic seals in warm air during the winter, increasing the overall performance of attic insulation. In the summer, an airtight attic stays cooler because the cooling ventilation air circulates directly beneath the roof sheathing, while the unique metalized surface of DuPont™ Tyvek® AtticWrap™ reflects heat away from the attic. The result is a semi-conditioned attic space suitable for storage without concern of contamination.Channels moisture vapor Moisture vapor passes safely through DuPont™ Tyvek® AtticWrap™, so vapor that enters the attic from the living space can diffuse through the breathable membrane into vented air channels to prevent the formation of damaging mold, mildew and wood rot in the attic.Acts as a secondary weather barrier DuPont™ Tyvek® AtticWrap™ collects leaking water and channels it to the eaves where it can safely drain outside the building. In severe weather areas where wind-driven rain can penetrate the attic through the soffits, DuPont™ Tyvek® AtticWrap™ blocks water infiltration into the building and allows it to drain safely outside the house.Reduces energy use Because DuPont™ Tyvek® AtticWrap™ creates an airtight attic, conditioned interior air is less likely to leak through the ceiling from the living space and into the attic. Air conditioning, heating equipment and duct work installed in a sealed attic lose less energy as well. |