Vapor Permeable Roof Underlayment

Special slip resistant surface provides enhanced walkability even on steeper pitched roofs.

Vapor permeable roof underlayment.

Felt fiberglas reinforced felt and a nonbreathable brand of synthetic underlayment using three full system boards for each test. It s very beneficial to be able to dry the roof deck upwards. When all of your old shingles are removed the underlayment is rolled on to protect the exposed roof from elements until the new shingles can be applied. According to the manufacturer the roofing underlayment features the patent pending vapor permeable polymer composite technology vppct developed by vaproshield.

Breathable and airtight with exceptional water and air holdout. Having a vapor permeable underlayment is important if you have a roof like decra metal roofing a roof that allows free flow air between the roof material and the exterior roof deck assembled like a vented rain screen. Used on steep slope roofs of 2 12 9 46 degrees or greater pitch. At least 600 greater tear strength than standard 30 asphalt felt.

Vaproshield announces the release of slopeshield plus self adhered a highly vapor permeable roofing underlayment air barrier ab material. This smart and competent armorlay 25 synthetic roof underlayment is the most useful thing for every house roof. In the osb occurred for the vapor permeable underlayment. The solution delta trela is a vapor permeable underlayment with structured separation and drainage specifically designed for metal roofs and façades with metal cladding.

Slopeshield plus self adhered sa a vapor permeable roofing underlayment is designed for use on steep slope roofs of 2 12 or greater pitch. Validation initial testing used 7 16 osb and owens corning classic 3 tab shingles on each sample with 3 different underlayments. Promotes long term drying of roofing assembly through vapor diffusion. Unlike typical synthetic underlayments deck armor helps reduce inside moisture from becoming trapped within your roofing system.

The first period is critical. The underlayment prevents corrosion and moisture accumulation underneath panels ensuring the longevity of your metal roof. It is intended to help shield your home from harsh uv rays and operate as a water barrier for your roof. 48 1 22 m wide roll.