To install such a roof a crew first builds a framework for the intended roof.
How to build a roof over concrete block.
For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.
Building a concrete block shed.
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.
Tip space the concrete blocks either 16 3 4 inches or 24 3 4 inches depending upon the size blocks you use.
Make sure that the anchor bolts are directly in the center of the cinder block core.
In some regions concrete block is also a common building.
Step 3 placing the steel joists.
The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.
Insert the 16 inch anchor bolts upright in the cement grout beginning at one corner and spacing the bolts four feet apart along the top of the wall leaving only two inches remaining above the grout and cinder block surface.
Cover the entire surface of the concrete block roof with a polyethylene sheeting and allow it to cure.
The steel joists will provide a strong foundation for the flat concrete roofing.