Roofing Flashcards
what is the minimum slope that cedar shingles or shakes may be installed
3:12
how many nails must be used to fasten a wood shingle or shake
2
the minimum slope for 5/2 - 16” red cedar shingles is
4:12
in roofing terms, a “pan” refers to what type of roofing
tile
what type of valley flashing is used with clay tile roofing
26 guage galvanized valley metal, 12” each side
what type of material is not used with the hot application of built up roofing
polyethylene
composition shingles should be applied overhanging the eave drip edge from ____ to ____
1/4” to 3/8”
the underlayement for shingles installed on a 2:12 sloped roof would consit of
2/15 lb felt
the minimum slope for composition shingles underlaid with half lapped 15 lb felt and with tabs sealed down is
2:12
of how many layers of rag felt or jute is a built up roof composed
3 to 5
how much of a wood shingle is exposed to the weatehr
less than 1/3 of the length of the shingle
what is the sheet metal roofing for flat roofs called
a metal deck
a square is the amount of roofing needed to cover
100 square feet
one roll of 15lb. Asphalt felt will cover
4 squares
on a roof deck, when applying asphalt felt as underlayment, each course should be lapped over the lower course at lest
2 inches