Metal Roof On Concrete Block

Standard hollow blocks laid on their face and supported between steel joists make a structurally sound roof and far surpasse any code requirements.

Metal roof on concrete block.

Concrete block reinforced masonry tilt up concrete load bearing walls may be combined with some heavy steel framing. The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure. Floors commonly concrete on steel deck for multi story buildings. A ledger is a horizontal board that is attached to the top of the the wall.

A newly developed system now allows roofs to be built from concrete block. For example a building with material with an r value of r 11 converts to an u value of 0 09 1 r or 1 11 0 09. 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. U value has an inverse relationship to r value.

The only known roof systems that have consistently survived high category hurricane and tornado velocity winds have been built with structural reinforced concrete decks securely and sufficiently connected to structural reinforced concrete or reinforced concrete block walls. Wear soft soled shoes to improve traction and to minimize damage to the paint finish. Step 3 placing the steel joists. Insulated reinforced concrete roof decks.

Metal roofing panels are slippery when wet dusty frosty or oily do not attempt to walk on a metal roof under these conditions. Get free shipping on qualified metal roofing or buy online pick up in store today in the building materials department. The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab. The concrete blocks are supported by steel joists that make concrete floors and roofs simple and affordable.

Roof construction is typically heavy steel frames. Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger. Reference table for u values u value is the coefficient of transmission i e the transmission of heat through the materials which compose the building s envelope or outer shell.