Bitumen Felt Roofing Thickness

Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights.

Bitumen felt roofing thickness.

Roofing asphalt saturated felt is a blend of cellulose polyester bitumen and asphalt soaked in a waterproofing agent. The most commonly used felts are 15 and 30 with weights of 8 and 20 pounds per 100 square feet. Thirty pound felt is more thick and stiff than fifteen pound so thirty pound is more resistant to damage during installation and can protect the roof longer if. Bituminous felt is a form of waterproof sheeting that is used to cover flat roofs or as an underlay beneath slate or tile roofing.

No 15 felt and no. Roofing felt s thickness is actually measured in pounds per square with one square equaling 100 feet of roofing material. 15 felt type construction helps provide an extra layer of protection between your shingles and your roof deck not included heavy duty design lays flat to help minimize wrinkling asphalt saturation to help improve waterproofing ability to help prevent wind driven rain and water from other sources from infiltrating under your shingles and. Felt roofing underlayment is one of the oldest types of roofing underlayment.

Bitumen roofing is also available in 1 2 or 3 ply. The most commonly used felts are 15 and 30 with weights of 8 and 20 pounds per 100 square feet respectively. Roofing felt s thickness is actually measured in pounds per square with one square equaling 100 feet of roofing material. Felt roofing underlayment is typically available in two types.

The substance itself is made from bitumen which comes from the distillation of crude oil that has been either mixed with sand or crushed limestone. It s created by saturating paper or fiberglass mat with asphalt. It comes in two thicknesses. 30 felt is typically thicker stronger and may be less prone to tearing or.

The 1 ply material is not durable and if used can pose certain problems such as breaking down prematurely while the 2 and 3 ply material roofs cost significantly more to install which can make this one of the most costly types of flat roofing products around. Roofing felt s thickness is not a measurement of its depth because it is thin similar to heavy paper.