Low Slope Roof Truss

Low slope structural roofing generally used on roof pitches ranging from 12 to 3 12 consists of interlocking panels commonly called standing seam roofing that run vertically along the roof surface.

Low slope roof truss.

Epdm won t last as long as metal but there s a reason it s the most common roofing for very low slope roofs. However ponding water is often observed in these low slope roofs. On low slope roofs in the snow zone epdm will be work better than standing seam since it can t leak even under high winds whereas metal roofs will. A low slope roof design typically has a pitch of between 2 12 and 4 12.

There are three factors that most affect the strength of low pitch trusses. Pitch span and wind speed. Combine these three at their most extreme i e. Residential low slope roofing can generally be divided up into two broad categories.

If you re adding a truss to a flat roof you ll have some control over what slope you want. The run or the base number is 12 inches. These panels generally come with a painted mill finish or a clear acrylic finish. Low pitch large span and high wind speeds and this is where you ll find a truss working the hardest.

For example a slope of 6 12 means for every 12 inches of horizontal distance the slope of the roof will rise 6 inches vertically. This type of truss is perfect for the dining room living room great room and kitchen. Pitch slope the pitch or slope is the incline of the roof expressed as a fraction describing the rise over the run. Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically from steep slope to low slope on the same structure.

It can take various forms and often used for aesthetic purposes adding height and focal interest to the ceiling. Understanding low pitch roof truss design. Specifically the code text typically reads roofs shall have a design slope of not less than one fourth unit vertical in 12 units horizontal 2 percent slope for drainage the stated and intended purpose of the code specified 1 4 in 12 slope is to provide drainage. These consist of 2 rafters that will hold up the structure s roof.

Roof trusses may be crucial for a garage s integrity and stability. A pitch truss with a sloping or non sloping vertical interior ceiling detail. The exact height of the truss will depend on the height of the roof. The rise will be the elevation change over the 12 inches.

How to build roof trusses for a shed. The roof trusses for sheds are one of the most vital pieces to design. With limited slope to drain well it can take forever to be rid of any leakage moisture.