Fire Rated Roof Underlayment

Versashield fire resistant roof deck protection helps to provide the best protection against fire spread and penetration by upgrading the ul fire classification of almost any type of roof.

Fire rated roof underlayment.

Fr 10 fire resistant slipsheets enhance the overall fire performance of many conventional commercial roof systems including metal roofs. It also can t protect against any water that flows upward toward the top of your roof like ice and water dams or heavy rain and wind storms. Firestone clad gard underlayment s provide an ideal moisture barrier between the roof deck and the adjacent metal system. 1 4 spans flute widths up to 2 5 8.

However contractors now recognize the benefits of synthetic underlayment for metal roofing particularly when it comes to its tolerance to heat and ultraviolet uv radiation. I have a few questions about standing seam metal roof assemblies. Underlayment must also act as a secondary weather barrier in case the roof fails. R values 28 tested in accordance with astm c518 spannings.

Traditionally metal roofs have used standard 30 pound felt paper underlayment. However in some jurisdictions roof assemblies are also required to be fire resistant. Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system 1 and has earned the good housekeeping seal. Densdeck roof boards can replace any generic type x gypsum board in any roof assembly in the ul fire resistance directory under the prefix.

Fr 10 is a coated glass fiber mat specifically designed for installation over wood decks or certain combustible insulation. Versashield fire resistant roof deck protection provides the very best fire protection. First class a fire rated assemblies appear to require metal roofing directly over class a rated underlayment over the roof deck with no ventilation space between the metal and underlayment. Polyglass creates self adhered fire resistant roof underlayment the polystick xfr provides water and fire proofing for high temperature applications including metal roofing.

Synthetic underlayment like an ice and water shield is quite a bit lighter rolls out in large rolls and is made of polypropylene fiberglass polyethylene and. In some jurisdictions roof assemblies are required to be fire resistant. 1 4 dens deck roof board.