Last updated july 22 2020.
Torch down roofing weight.
The abs plastic mats range in weight from 1.
See the roof finder index in this section for further information.
3 222 app modified bitumen specifications 4 2 these specifications are denoted by an n or an l as the third character in the specification designation e g 3cnn w or 3pln w.
The torch lower roof also known as torch on roof includes layers of abs plastic and polyester with bitumen which are put into the standard tar and gravel adding system.
The granulated cap sheets come in many colors some of which are energy star rated and qualify for the federal tax credit.
This membrane contains a core of nonwoven polyester mat that resists splits and tears.
While it can last up to 20 years installing torch down roofing can be a dangerous process and as such tends to cost more than traditional roofing materials.
Torch down roofing is a type of roofing material that has been designed for low angle or flat roofs.
Torchdown membrane comes in smooth and granulated sheets.
Torch down is light weight at less than 2 pounds per square foot.
Where possible the values were taken directly from manufacturer technical data sheets and are the actual weights of specific representative products.
The weight of roofing constructions above the truss rafter may be estimated with the calculator below.
To two 5 pounds per 100 sq ft or around 50 to 125 grams per square meter.
None asphalt roll roofing 1 1 lb m ft 2 5 4 kg m 2 asphalt shingle or asphalt fiberglass composite shingle 2 7 lb m ft 2 13 2 kg m 2.
Weight of roofing materials.
The following table provides typical weights dead load self weight for various roofing materials.