Roof Sheathing For Torandao Proof

A tornado resistant roof s primary function in a continuous load path is as a horizontal diaphragm that moves the loads imposed by heavy winds to the supporting walls below.

Roof sheathing for torandao proof.

Then the roof sheathing rips from the roof framing. For shingles wind ratings are based on standards published by astm international formerly known as the american society for testing and materials and resistance to impact is based on an. There is a vast array of metal roofing options like stone coated steel shingles or metal panels which are installed in an interlocking pattern. Use roof sheathing with a minimum thickness of 19 32 inches for added strength in high risk high wind zones.

Do not attach with staples. Use a nailing pattern of 8d ring shank nails at 6 inches on center. Metal many roofers will tell you that metal is the gold standard for tornado resistant roofing. Finally the roof framing pulls from the supporting walls.

Unfortunately concrete decks can only be installed on homes that have concrete walls due to the heavy weight of this decking type. Insulated reinforced concrete roof decks the only known roof systems that have consistently survived high category hurricane and tornado velocity winds have been built with structural reinforced concrete decks securely and sufficiently connected to structural reinforced concrete or reinforced concrete block walls. To protect roof coverings from both wind and hail damage look for wind and impact rated roof coverings. Many tornado prone areas are also prone to hail.

Insulated reinforced concrete roof decks are considered the most tornado resistant decks available due to their extreme strength. The roof sheathing is the first structural element in the load path between the roof system and the foundation.