Low Slope Roof Framing Details

Resso concurs that low slope metal roofing differs from steep slope roofing in that resistance to water infiltration through panel seams is an even more crucial aspect of the system design.

Low slope roof framing details.

Flat roof has a slope of 2 12 or less it is usually. There are 3 main types of roofs. Types of the roof by slope. These critical junctures account for the majority of roof leaks.

Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering. 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. 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.

Low slope metal roofs provide years of low cost low maintenance performance. A low slope roof design typically has a pitch of between 2 12 and 4 12. 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. Many times the low slope is dictated by the building geometry.

Problems at these points typically arise from improper application methods and the use of inappropriate or incompatible materials. Wide width roof areas that simply must be lower slope to limit the overall height of the roof building as a practical matter he says. The most critical application points on low slope roof systems are at flashings penetrations and accessories. Flat low slope and steep slope a gambrel is a combination of a low and steep slope.

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.