Engineered to Breathe

Breathex is a line of synthetic breathable roofing underlayments which allow water vapour and moisture to escape from beneath, while keeping water out. Breathex Pro, HAL’s latest innovation in the Breathex line, is our most technologically advanced breathable roofing underlayment yet.

HAL has a proud history of innovation and Breathex Pro is no exception, maintaining a dry and healthy deck with its state-of-the-art breathable technology. It has a class leading walking surface and an all new high strength three-layer construction, making installation safer and easier.

Class Leading Walking Surface

The top side of Breathex Pro is formed out of nonwoven, spunbonded polypropylene fibres, textured so that rain or shine, Breathex Pro has a secure walking surface. This high-friction surface gives your boots plenty of traction, and when combined with proper footwear and fall protection, it provides a safer installation environment. Breathex Pro's walking surface is strong, durable, and specifically designed to give your feet excellent grip.

Engineered to Breathe

Breathex is a line of synthetic breathable roofing underlayments which allow water vapour and moisture to escape from beneath, while keeping water out. Breathex Pro, HAL’s latest innovation in the Breathex line, is our most technologically advanced breathable roofing underlayment yet.

HAL has a proud history of innovation and Breathex Pro is no exception, maintaining a dry and healthy deck with its state-of-the-art breathable technology. It has a class leading walking surface and an all new high strength three-layer construction, making installation safer and easier.

Class Leading Walking Surface

The top side of Breathex Pro is formed out of nonwoven, spunbonded polypropylene fibres, textured so that rain or shine, Breathex Pro has a secure walking surface. This high-friction surface gives your boots plenty of traction, and when combined with proper footwear and fall protection, it provides a safer installation environment. Breathex Pro's walking surface is strong, durable, and specifically designed to give your feet excellent grip.

Maintaining a Dry & Healthy Deck

Attics can collect a steady flow of humid air from active living spaces below, and often through roof vents during repeated dewpoint morning. This humid air can raise the absorbed moisture content of roof plywood to a level where unhealthy mold growth can occur, especially if the moisture can’t escape from the upper side through a breathable underlayment.

The hydrophilic coating on Breathex Pro will absorb water vapour molecules from the roof deck below and release them to the shingle interface above where sun and wind action can disperse them each day.