How Thick Is A Concrete Roof Slab

The blocks come in several sizes but this guide will assume you are using a 16 3 4 inch wide concrete slab.

How thick is a concrete roof slab.

For a 6 inch slab r value would be between 0 6 and 1 2. Recommended thickness of concrete slabs engineering toolbox resources tools and basic information for engineering and design of technical applications. For example a 4 inch patio slab will have a 1 inch concrete joint. Design the roof slab beam and column of house given in figure 1.

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. An extra floor was required to be constructed which involved converting the original roof slab to a floor slab thereby increasing the live load capacity to 3 kn m 2. Live load 40 psf figure 1. The construction of the original building consisted of a reinforced concrete frame with cast in situ trough floors.

The steel joists will provide a strong foundation for the flat concrete roofing. Search is the most efficient way to navigate the engineering toolbox. Concrete thickness for flatwork such as slabs on grade and driveways a minimum thickness of four inches is required but increasing the thickness to five inches can add nearly 50 percent to the load bearing capacity. Generally speaking lower density concrete provides better insulation than higher density concrete.

For small cars the concrete should be at least four inches thick. Exact specifications vary but most concrete roofs are several inches thick. A reasonable r value for a normal concrete slab can be estimated using an r value the thermal resistance per inch of thickness between 0 1 and 0 2 and multiplying it times the slab thickness. How thick you pour your concrete floor can be determined by how the floor is going to be used.

When working out the proper thickness of the slab you should take the appropriate size of any joints into consideration. Slabs s1 and s2 to be designed. Light use for one to two light cars or trucks you can generally get away with pouring less concrete. These will support the concrete patio slab and will need to be a quarter of the depth of your slab.

2 thick brick tile. To install such a roof a crew first builds a framework for the intended roof. Steel yield strength fy 40 ksi. This is largely based on the types and the number of vehicles you plan to park on it.