High To Low Roof Party Wall Detail

If the upper edge of a low slope shed roof intersects a vertical wall the most logical approach in my opinion is to detail the roof as an unvented roof.

High to low roof party wall detail.

Do not use the area separation wall system where exposure to constant dampness and or water may occur. Using roxul safe 45 with our rockwool batt insulation creates a high density party wall system that improves sound dampening and fire performance. Two totally separate walls are built side by side with a few inches of airspace. It must either be continuous from the foundation to the underside of the protected roof sheathing or continue through the roof to form a parapet.

The area separation wall is designed to allow for collapse of the. It also reduces the time labor and material costs usually associated with adding a double layer of gypsum over the wall studs. An area separation wall can be used in townhouses up to four stories 44 tall and with all common floor ceiling heightsa. With double wall construction the separation begins at the floor joists and runs all the way to a roof parapet.

The area separation wall system may be built up to a maximum of 66 ft.