Related illustrations

0411

Roof joists versus roof rafters

· p. 74

The illustration compares wood roof framing at two slopes, with each roof member bearing on wall top plates above a stud. On the left, a low-slope roof member is identified as a roof joist, and a dashed outline indicates

0417

Ridge support

· p. 75

The illustration shows a cross-section of a low-slope gable roof with wood rafters meeting at a ridge beam and a horizontal ceiling joist spanning between exterior walls. A vertical member supports the ridge directly abo

0124

Sloped roof draining onto flat roof

· p. 29

Two roof sections compare typical and improved details where a shingled sloped roof drains onto a gravel-surfaced built-up flat roof. Both details specify extending the flat-roof membrane 3 feet up the slope underneath t

0120

Pitch pans for irregular roof penetrations

· p. 28

A perspective view and enlarged cross section show a pitch pan sealing an irregular column penetration through a modified bitumen roof. The sheet-metal pan surrounds the column and has an outward flange overlapped by a c

0094

Gravel erosion (scouring) on flat roofs

· p. 24

The illustration shows a gravel-covered flat garage roof adjoining a taller house with a pitched roof. Bare patches expose the roof membrane at a windward corner and beneath a downspout that discharges directly onto the

0016

Low slope shingle application

· p. 10

The illustration shows a low-slope asphalt shingle roof assembly with successive courses lifted to reveal bands of roofing cement between layers. The starter strip is embedded in an 8-inch-wide band of cement, and the se