Metal Roof On Concrete Block

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.

Metal roof on concrete block.

A solid slab of concrete capping the top of your house. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Wind loads are one example of the requirements. The steel joists will provide a strong foundation for the flat concrete.

Step 3 placing the steel joists. There are some requirements that must be taken into account when connecting to wood members. Attaching a wood roof to a cinder block building is difficult but possible. The joists are lightweight weighing only 4 1 2 pounds per linear foot.

However the do it yourselfer can attach a wooden roof to cinder block with little or no training in one to two days depending on the size and scope of the project. Concrete block roofs are constructed manually. Metal roofing panels are slippery when wet dusty frosty or oily do not attempt to walk on a metal roof under these conditions. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.

The connection between the cmu block and the roof system has to be strong enough to withstand storms with high winds. Exact specifications vary but most concrete roofs are several inches thick. Always be aware of your position on the roof relative to any roof openings roof edges co workers and penetrations. Fire retardant treated wood framing complying with ibc sec.

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. Cover the entire surface of the concrete block roof with a polyethylene sheeting and allow it to cure. Cmu concrete masonry unit block is an extremely strong form of construction. Wear soft soled shoes to improve traction and to minimize damage to the paint finish.

Space the concrete blocks either 16 3 4 inches or 24 3 4 inches depending upon the size blocks you use. 2303 2 shall be permitted within exterior wall assemblies of a two hour rating or less. A concrete roof is exactly what it sounds like.