Low Slope Roof Details

These critical junctures account for the majority of roof leaks.

Low slope roof details.

Roof penetrations should be kept to a minimum and should be located within the flat of the panel where possible as opposed to near seams. By low slope roofing we mean any roof that is pitched at less than 4 inches of rise in 12 inches of run or 4 12 pitch. I don t know how large your roof area is but at an 1 8 to 12 slope you will have water ponding on it. However the slope is below this industry s manufacturer s 1 4 to 12 recomendation.

Designers and specifiers should pay close attention to roofing details in these areas and. Generic valley treatment details for metal panel roofs for low slope with and without substrates are included in the mbma metal roofing systems design manual chapter 12 metal roof details. As in all construction work paying attention to the little details can make all the difference between a long lasting trouble free project and one that results in callbacks and early failure never a good option with a new england roof. Low slope metal roofs provide years of low cost low maintenance performance.

Low slope roofs are not totally flat their roof slope generally ranges from 1 4 12 to 3 12. There are over 150 variations of details available from carlisle syntec for epdm roofing systems. Resilient synthetic rubber membrane widely used on low slope roofing projects for over 50 years in the united states and worldwide. In either case find a professional roofing contractor experienced with low slope roofs and these specific products.

Regular asphalt shingles and standard skylights will work at pitches of 4 12 or greater but at lower pitches you have to use different materials. No endlaps a good idea because of the low slope. Low slope metal roofs have simple geometries and are easier and less expensive to install that medium to steep slope roofs. Low slope metal roofs require less material which reduces the overall load on the building s structure.

Installation is important when it comes to putting a single ply roofing system on a building. Problems at these points typically arise from improper application methods and the use of inappropriate or incompatible materials. Eric sounds like a well thought out roof system.