HAL Industries Inc. manufactures a variety of breather membranes to suit whatever wall system your climate requires.
Asphalt building papers, sometimes called breather-membranes, have proven themselves over a very long history of use as protective weather barriers beneath exterior wall cladding. They "breathe" to let the wall release water vapour while at the same time they provide a barrier to water entry from outside. Building papers help to resist the effects of winds and drafts as part of an overall wall system.
Underlayment sheets are used beneath shingles, shakes or tiles as a secondary protective layer between the roof deck and the finished roofing. This secondary layer protects against wind-blown moisture which may occasionally penetrate past the outer roofing material. We pre-condition our felt to lay flat and remain stable during and after installation.
Built-Up Roofing is a method of roofing where multi-layers or "plies" are "built-up" on a roof surface with hot molten asphalt acting as the waterproof glue which holds them all together. The plies can be made up of No. 15 organic (paper) felts, fibreglass ply sheets, or POLYMAX 180 polyester felts. Polyester is the premium choice in roofing ply-sheets and has many advantages over the other materials, particularly in strength and durability.