How To Build A Roof Over Concrete Block

The steel joists will provide a strong foundation for the flat concrete roofing.

How to build a roof over concrete block.

Make sure that the anchor bolts are directly in the center of the cinder block core. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab. Tip space the concrete blocks either 16 3 4 inches or 24 3 4 inches depending upon the size blocks you use. 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. Concrete block has been used as a building material for more than a century. The pros cons of concrete block house construction. Exact specifications vary but most concrete roofs are several inches thick.

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. Building a concrete block shed. In some regions concrete block is also a common building.