Roof
Roofing & exterior
Shingle roof
PRO STEP
Squares, bundles, underlayment, ice barrier, drip edge, flashing, vents and nails for an asphalt shingle roof.
Answers
Sheet
0 of 17
answers are yours. The rest are typical defaults — check each one.
Roof
House length
default
Outside wall to outside wall, along the ridge. Overhangs come next.
ft
in
House width
default
Outside wall to outside wall, the other way.
ft
in
Overhang at the eaves and rakes
default
Measured level, from the wall to the edge of the roof.
None
6″
12″
18″
24″
Roof shape
default
Gable
Two slopes, triangle ends
Hip
Slopes on all four sides
Shed
One slope
Pitch
default
Rise for every 12 across: a 6/12 roof rises 6 for every 12. A pitch gauge or a level app on a rafter tells you.
3/12
14°, low
4/12
18°
5/12
23°
6/12
27°, walkable
7/12
30°
8/12
34°, steep
9/12
37°
10/12
40°
11/12
43°
12/12
45°
Roof area, if you know it
default
From a roof report or an old invoice (a square is 100 sq ft). Leave 0 to work it out from the house.
sq ft
Stories
default
1 story
Eaves about 10 ft up
2 stories
About 19 ft
3 stories
About 28 ft
Old roof and shingles
1 layer · Tear off the old roof · Architectural
Valleys, walls and openings
Valleys, total length 0″ · Places the roof runs into a wall 0 · Chimney None · Plumbing vent pipes 2
Weather
Use my area’s rule
See the Sheet
Start over
Common sizes
1,000 sq ft
1,500 sq ft
2,000 sq ft
2,500 sq ft
Roof
1503
sq ft
Materials
~$3,150
See the Sheet