Low Slope Roof Requirements

Low slope and steep slope roofing systems have different industry standard testing requirements.

Low slope roof requirements.

As well a slope of 4 12 is most commonly considered the lowest slope for standard shingle installations. Low slope roofs in climate zones 1 3 are required to meet minimum roof reflectance and emittance provisions sometimes referred to as cool roofs. Anything above that will require you to put out higher cost because they are already considered as higher pitch. Personal fall protection systems e g personal fall arrest travel restraint positioning system 42 inch high parapet.

On 12 2 slope. Regardless the international building code ibc chapter 15 includes the following requirements for minimum slopes for metal roof panels. Minimum roof slope roof pitch r905 10 2 1. Most manufacturer and industry recommendations require or at the very least recommend special underlayment or other considerations on roofs between 2 12 and 4 12.

During this test the roof panel system is completely submerged under six inches of water for. An ssr may be installed on a roof down to 1 4 in. The standard of lower pitch actually ranges between 1 12 to 5 12. Low slope metal roof systems are tested to astm e2140 standards a water penetration test evaluating the resistance of roof panels vertical seams.

Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope. The roofing safety zones.