Bob flashed back to the installation of the new roof. First the crew removed the old layers of roofing material from the barn. Next they added a layer of Louisiana Pacific oriented strand board (OSB) over the original sheathing. It's manufactured with thin wafers of wood, resins and wax compressed under intense heat. When used as roof sheathing it's extremely resistant to moisture damage. Then they stapled down a layer of felt paper and marked with chalk lines to lay out the courses of asphalt shingles. Since these are double layer shingles, they're fastened along the pre-marked white line to assure that both layers are attached to the roof. Frames for the Velux VSE skylights were installed. These vented skylights will be operated with a hand-held remote. Copper step flashing is added to the side of the skylights and the asphalt roof shingles are fastened up to it.

Bob and Jack Viera demonstrate installation of 3-tab asphalt roof shingles. An ice and water barrier is added and secured with aluminum nails.

Kevin Benjer in on hand to demonstrate the correct way to apply asphalt roofing shingles and a ridge vent. Chaulk lines are drawn to ensure proper alignment and then each course of shingles are added. The ridge vent is installed last and help provide ventilation to the attic.