Torch Down Roofing Underlayment

As long as it is installed correctly bitumen prevents moisture build up without needing constant maintenance.

Torch down roofing underlayment.

This underlayment helps prevent the roof from developing condensation or moisture issues. I originally was going to use ice and water shield but don t think i want to put torch down on top of that. If you install the smooth product cover it with aluminum coating. Renting a large propane torch is.

Secure it with roofing nails and then apply the torch down. It is best to use 75 glass base underlayment. I m going to be re roofing an addition on our house that is low slop and would like to use torchdown roofing. Gaf tri ply app smooth is a strong resilient membrane that is suitable for new or reroofing projects as well as for use as flashing.

Gafglas 75 base sheet for built up roofing bur is a premium roofing sheet with a strong fiberglass mat to prevent asphalt bleed through. What type of underlayment should i use. The mat is coated with durable app modified bitumen surfaced with granules and is designed for torch down application by professional roofing contractors. More product details close tri ply app granular cap sheet 39 625 in.

Torch down roofing is a type of roofing material that has been designed for low angle or flat roofs. The mat is coated with durable app modified bitumen and is designed for torch down application by professional roofing. This membrane contains a core of nonwoven polyester mat that resists splits and tears. These steps show a torch down method which looks a bit scary but actually is not too difficult.

Net membrane roll for low slope roofing in white. This video shows you how to use a torch and also tar to make a repair on a modified bitumen rubber flat roof. 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. Modified bitumen roofing may have a granular surface as shown here or it may be smooth.

Priming the underlayment is not needed. Use flashings approved by your building department.