Metal Roof On Concrete Block

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.

Metal roof on concrete block.

Cmu concrete masonry unit block is an extremely strong form of construction. Failure to create an attachment point will result in roof failure especially in high winds. A solid slab of concrete capping the top of your house. The connection between the cmu block and the roof system has to be strong enough to withstand storms with high winds.

Wind loads are one example of the requirements. Cover the entire surface of the concrete block roof with a polyethylene sheeting and allow it to cure. Wear soft soled shoes to improve traction and to minimize damage to the paint finish. Step 3 placing the steel joists.

Fire retardant treated wood framing complying with ibc sec. The joists are lightweight weighing only 4 1 2 pounds per linear foot. The steel joists will provide a strong foundation for the flat concrete. It has masonry bearing walls but the floors structural framework and roof are made of wood or other combustible material.

Exact specifications vary but most concrete roofs are several inches thick. 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. 2303 2 shall be permitted within exterior wall assemblies of a two hour rating or less. 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.

Concrete block roofs are constructed manually. Space the concrete blocks either 16 3 4 inches or 24 3 4 inches depending upon the size blocks you use. There are some requirements that must be taken into account when connecting to wood members. Always be aware of your position on the roof relative to any roof openings roof edges co workers and penetrations.

A concrete roof is exactly what it sounds like. Attaching a wood roof to a cinder block building is difficult but possible. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.