21
30 by 40 = 1200 sq.ft. divide by 10 = 12 square 3tab and arch shingles are 3 bundle per square 12 sq. x 3 bundles = 36 bundles 3tab = 26 shingle per bundle arch = 22 shingle per bundle 36 bundle x 26 = 936 3tab shingles 36 bundle x 22 = 792 arch shingles =)
Depends on the type of shingle (asphalt, shake, slate, etc.). Most asphalt shingles weigh about 75lbs/bundle, at 3 bundles per square (100 square feet per square).
at least 25 bundles With an average of 3 bundles per square(100 square feet) an 8 square roof would need 24 bundles plus 1 for cuts and shorts.
Please re-write so this is understandable.
About 80 lbs.
each bundle does 33.3 sq ft.
A bundle of shingles weigh ~ 80lbs, so it depends if you are using 3-tab or architectual shingles. There are usually 22 shingles in a bundle of arch. and 26 in a bundle of 3-tab. Doing the division and arch shingle weighs ~3.63 lbs and a 3-tab weighs ~3.08lbs. The weight will very depending on the brand and style of shingle as well... Hope that helps you...
what is the weight of a sq of 3 tab and a sq of arutectural shingles
Usually 4 that information should be on the bundle
Shingles are rated in pounds / 100 square feet. Typical ratings are 235# or 265#. 1 bundle of shingles covers 1/3 of 100 sq feet. 235# shingle / 3 = 78.33 lbs
Depending on which manufacturer of starter shingles you prefer, you will get 100 linear feet, give or take a couple of feet for some brands. If using 3-tab shingles as a starter shingle, you will get roughly 78 linear feet per bundle.
3 bundles of shingles = 100 square feet 1 bundle of shingles = 33 1/3 square feet
How many bundles of 3-Tab Shingles are needed to cover 80 square feet?
2/3 of a bundle of shingles which has approx. 22-23 shingles
21
9 bundles assuming std. 3 bundle/sq. shingles