Frame A Pitched Concrete Roof

A roof with a pitch of less than 5 has a shallow slope and a roof pitch of more than 8 appears to have a steep slope.

Frame a pitched concrete roof.

Step 3 placing the steel joists. Input the pitch of the roof that you calculated above we ll use 7 12 for reference throughout on the framing square. These trusses are not intended to carry structural roof load but they proved to be very efficient with only minimal additional support as a shoring system. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.

Mono the mono roof is a single very low pitched roof used mostly on contemporary homes. The gleaming white finish above was achieved with two applica tions of an elastomeric coating. Cloyd joe warnes a concrete expert and consulting engineer has more than 40 years of experience with pitched concrete roofs. One of the most crucial step in building a flat concrete roof is to figure out the size of the concrete block you will need.

These frames can either be removable concrete forms or stay in place insulating concrete forms which simply become a part of the finished roof. The roof was surfaced with fossilcrete which was stamped and colored to resemble shingles. I chose a pitched roof design and in this video take you through the entire job from start to finis. See exactly how i made a simple porch roof step by step.

It uses a single mono truss 1 and often has a pitch lower than 3 inches per foot 2 making it easy to roof but hard to maintain. The steel joists will provide a strong foundation for the flat concrete. On the body of the square the longer side input the 12 and input the 7 on the tongue the shorter side of the square by lining up the stair gauges at the corresponding point on the square. Then the lower chord of the truss served as framing for the finished ceiling.

The roof finish is standing seam metal attached to. Then a concrete mixture is poured spread through the framework and reinforced with steel bars which serve as a kind of skeleton for the cured concrete. Wood 2x2s placed on the roughly finished first layer of roof concrete right retained the concrete for the final layer creating a tiered slope. Framing are suitable for the channels.

The same product was used on the exterior walls which were carved to resemble ashlar cut limestone. All photos courtesy enviro safe concrete roofing system inc.