Problems With Roof Slope At 1 12

After getting some advice here and on green building advisor we re thinki.

Problems with roof slope at 1 12.

I ve done a lot of research on low slope roofs because our builder does not have a lot of experience with flat roofs. Slopes greater than 18 12 are found on a frame roofs and some mansard style. Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. Typically large footprint single story warehouses and pre engineered metal buildings will utilize low slope metal roof systems.

Hello our house is being built near the boundary of zone 4 and 5 in illinois with a 1 12 pitch metal roof. Low slope roofs are from 0 to 3 12 in pitch. Some sources consider low slope to include 3 12 pitch roofs. Rafter length from ledger board to beam is 7 with a 12 overhang.

The roof slope is only 1 12. The roofer making the complaint said that he bid that job and lost to a lower bidder while thinking that the only suitable materials would include mule hide epdm or high rib steel. See low slope roofing. If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks.

1 12 pitch roof if this is a porch on a trailer use corrugated sheet material can be found at lowes. From the bottom of the rafters to the deck on the house side is 7 and from the deck to the top of the beam is 6 3 1 2 which gives me just under a 1 12 pitch.