Self-adhered vapor-open Henry Blueskin, followed by carefully installed windows, form the new weather barrier for the restored dormers.
Mark Pollard starts applying Blueskin to the dormer cheek. By peeling off the backing in a small area, he can easily position and re-position sheets of the material before sticking them down permanently.
Before applying the weather barrier to the side of the dormer, Tyler Stroud installs step flashing under the shingles.
Pollard wraps the Blueskin around the side of the dormer after adhering the material to the dormer face.
Pollard laps the top edge of the self-adhering Blueskin membrane up onto the underside of the soffit.
Pollard folds the edge of the Blueskin into the window opening, lapping it over the sill flashing membrane at the bottom.
Pollard rolls the Blueskin with a rubber roller to ensure a good bond to the OSB substrate.
Pollard applies pressure to the membrane with a rubber roller to ensure a good bond between the membrane and the substrate.
Stroud and Pollard position the Blueskin on the gable end of the dormer above the window opening.
Pollard and Stroud peel the backing off the Blueskin membrane and smooth the material onto the wall.
Stroud applies a bead of silicone sealant to the top edge of the pre-applied window trim.
Stroud applies a bead of silicone adhesive to the pre-applied trim at the side of the window.
Pollard applies Blueskin tape lapping from the side casing of the window onto the wall face.
Pollard nails a site-bent piece of aluminum cap flashing to the wall at the top of the window head casing.
Pollard and Stroud apply vapor-permeable VP100 tape over the flashing to seal the joint between the WB25 and the flashing.
Following the manufacturer's instructons, Pollard applies silicone sealant to the top edge of the VP100 tape at the window head.
A view of the back of the dormer gable rake trim shows strips attached to provide an air space behind the boards for drying.
Pollard applies MortairVent rainscreen fabric to the wall. The material maintains a 5/8-inch air space behind clapboard or shingle siding. Folding up the integral screen at the material's edge creates an insect barrier.
Pollard staples an insect screen material to the bottom of the dormer cheek wall.