Roofing & exterior
Shingle roof
Squares, bundles, underlayment, ice barrier, drip edge, flashing, vents and nails for an asphalt shingle roof.
0 of 17 answers are yours. The rest are typical defaults — check each one.
Outside wall to outside wall, along the ridge. Overhangs come next.
Outside wall to outside wall, the other way.
Overhang at the eaves and rakes
default
Measured level, from the wall to the edge of the roof.
Gable
Two slopes, triangle ends
Hip
Slopes on all four sides
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.
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.
1 story
Eaves about 10 ft up
Old roofing on it now
default
Tear off the old roof?
Best: you see the deck and can lay an ice barrier. A layover (no) goes over one old layer at most.
Architectural
Laminated, 3 bundles a square
3-tab
Flat, 3 bundles a square
Designer
Heavy, 4 bundles a square
Valleys, total length
default
Inside corners where two slopes meet (an L-shaped house has two). Add them up along the slope; 0 if none.
Places the roof runs into a wall
default
Dormer sides, a porch roof against the house, a lower roof under a second story. Each gets step flashing and a kick-out.
Wider than 30″
Needs a cricket
Plumbing vent pipes
default
Pipes through the roof; each gets a new boot.
Attic vents up high
default
Ice barrier at the eaves
default
Peel-and-stick membrane that stops ice-dam leaks. Where winters freeze, codes usually require it.
High-wind area?
Hurricane coasts and other places your building department calls high-wind: 6 nails a shingle and more underlayment fastening.