Parapet Pitched Roof Detail

I m having an extension built at the moment which includes a pitched roof down to a box gutter and parapet wall.

Parapet pitched roof detail.

100 dan road canton ma 02021 phone 1 800 451 2504 sales 1 800 576 2358. Flat roof details and information relating to insulating a flat roof. Courtesy of max baker and the national research council of canada. While a roof parapet wall may seem like a small detail in the grand scheme of the entire building design it can actually change the dynamic of an entire roof both in terms of cosmetic detailing and safety.

Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. I am planning a lean to pitched roof on my house with velux windows but not ceiling joists as i want it to be vaulted. The assembly is straight forward but what complicates matters is that the roof needs to be vented. Theres also an svp in the way about a 3rd of the way along the existing longest wall where the ridge would be.

A parapet roof is simply put when a building s outermost walls extend upwards past the roof around the edges most often by a few feet. 4 1 roof to wall junction 78 4 2 roof junction detail 81 4 3 tricky lean to junction 85 4 4 so t detail at gable verge 88 4 5 parapet or balustrade to wall junction 90. The roof will drain into a box gutter with a parapet. I ve uploaded the section from the building regs drawings which show that the design has the roof joists on hangers and then the box gutter sat on top of the inner leaf of the cavity wall.

At the highest point of the sloped roof the parapet is about 10 tall at the lowest point the parapet is about 14 tall. Roof detail drawings includes jpeg dxf and dwg cad via download a selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. If you didn t get it right you concentrated the stresses at roof edges and you could suck in a parapet or tear or rip a membrane at the parapet photographs 3 and 4. Roof membrane temperatures ottawa canada summer day.

Parapet detail masonry cavity wall flat roof with parapet insulation above joists.