Roof Construction Details Low Slope Roof On Posts

Construction details are provided for the following spf roof system types.

Roof construction details low slope roof on posts.

So instead of lapping a 36 in. Associate senior project manager. We are creating a well ventilated space above the well insulated low slope roof and have vertical 3 4 strapping creating a drainage plane for the gable end wall. Low slope roofs are often referred to as flat roofs.

This introduction is intended to supplement the special notes on the individual construction details. Designers and specifiers should pay close attention to roofing details in these areas and. Ct 14 multi piping through roof deck. Think typical vermont vernacular.

Principal components of low slope roofing systems. 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. Underlayme nt the typical 2 in the overlaps are 18 in. A comprehensive roofing specification writing tool allowing users to quickly write accurate steep and low slope roofing specifications for job submittal packages.

That simply means that there must be two layers of underlayment everywhere. Slope is conveyed as a ratio and it stands for an amount of vertical rise for every 12 inches of a horizontal run which is again expressed as 3 12 or 3 in 12. They have water proofing layers most of these roofing systems will have one or more water proofing layers. That includes soldered metal roofing or synthetic membranes.

I am working on 3 projects currently where we have a low sloping roof like the one discussed above that terminates against the gable end of the house. Most low slope roofs have a slope of less than 3 in 12 which means that a roof that rises 3 inches for every foot of run will be defined as one that has a 3 in 12 slope. The roof assembly is defined as the roof deck along with the roof membrane and roof insulation. These critical junctures account for the majority of roof leaks.

The components are as follows. Chapter 8 construction details provides technical information concerning the design and installation of construction details for quality spf roof systems. The roof system is defined as the roof membrane including surfacing and the roof insulation. Details and durability of roof membrane.

Typically all of the standard drywall construction details for sound fire and thermal have been sufficient to satisfy the air. Problems at these points typically arise from improper application methods and the use of inappropriate or incompatible materials. Usually low slope roof systems including low pitched roof extensions have three principal components. This is by far one of the most important components since it is crucial in keeping water from entering the roof system adding to the longevity of the roof.

Roof assemblies with a pitch slope of less than 3 12 are considered low slope roofs. The most critical application points on low slope roof systems are at flashings penetrations and accessories.