This general specification is for the installation of a membrane system used in new construction and reroofing applications over nailable deck types (e.g. plywood).
A.) Fibreglass base sheet: This is the first layer which is nailed to the deck using Simplex Nails (nails with a large washer-like head).
B.) Torch-on base sheet: This is the second layer. It is torched down to the fibreglass base sheet.
C.) Torch-on cap sheet: This is the third layer. It is torched down to the torch-on base sheet, and it will have a granular surfacing as the membrane’s protection against ultra-violet light.
Bird house vents: These vents let the air circulate through the rafters to remove moisture and heat.
Plumbing stacks: A flashing which allows breather pipes for your plumbing to pass through the roof. From the ground, they appear to be a pipe sticking up through the roof.
Roof drains: These copper drains allow water to drain from the roof through the soffit (roof overhang) to downpipes attached to the exterior wall of the house.
Scupper drains: These copper drains allow water to be drained from the roof to the downpipes without going through the soffit.
B-vent flashing: This is a flashing for your furnace or chimney.
Metal flashings: All our metal flashings are made from 28-gauge metal and come prepainted with a baked-enamel finish that won’t rust!