Perforated Roofing Felt

It is suitable for use in the construction of various types of membranes for both new construction and reroofing over a variety of.

Perforated roofing felt. C type 3 plain non perforated roofing felt used as an underlayment beneath asphalt shingles wood shakes and shingles tiles and other steep slope roof coverings. Bituminous waterproofing systems are designed to protect residential and commercial buildings bitumen asphalt or coal tar pitch is a mixed substance made up of organic liquids that are highly sticky viscous and waterproof. 30 specification felt roofing underlayment is a specification grade felt for use as an underlayment between the. No 15 perforated felt is designed for use as an interply felt for hot asphalt applied organic built up roofing systems.

1 3 the values given in si metric units are the standard. 30 specification felt roof underlayment 30 specification felt astm d4869 type iv astm d226 type ii atlas provides a complete selection of roofing felts or roofing paper. 15 perforated felt imperial asphalt saturated felt is composed of a resilient high strength cellulose fiber mat saturated with premium waterproofing bitumen. This article series discusses roofing felt specifically addressing the roofing code or roofing manufacturer s requirements for use of an underlayment such as roofing felt tarpaper or other underlayment products beneath asphalt shingles and other.

Used as a vapour retarder on certain substrates or as a membrane for multi ply built up roofing systems iko s no. This sheet is perforated by more than 1200 holes per square meter to permit release of vapours caused by hot asphalt during mopping in as a ply in built up roofing b u r systems. 15 perforated asphalt saturated felt imperial meets or exceeds astm d226 type i. Perforated felt this product consists of a resilient high strength cellulose fibre mat that has been saturated with premium waterproofing bitumen.

No 15 perforated felt asphalt saturated perforated organic roofing felt product use. Roofing underlayment roofing felt requirements. Is roofing felt required. Gafglas stratavent perforated venting base sheet is a premium grade roofing felt with a patented perforated design that allows mopping asphalt to flow through to the substrate as the next ply of the roof system is installed.

These systems are sometimes used to construct roofs in the form of roofing felt or roll roofing products. It is commonly referred to as no. Organic dry felt is made from 100 post consumer recycled material. It is commonly referred to as no.

The product may be used as a hot mopped asphalt vapour retarder on certain substrates or as a membrane for multi ply bur systems. Felt details for various roof slopes amp.