Minimum Thickness Of Roof Slab

A concrete roof is exactly what it sounds like.

Minimum thickness of roof slab.

Concrete is typically applied at a thickness of 2 inches or more but the thicker it is the stronger the slab will be. Design process includes proper assumption of structural element sizes and then check hellip. I generally use a minimum of 4 bars with 2 bars of 12 mm thickness in the bottom of the beam and 2 bars of 10 mm at the top of the beam. I maintain a concrete cover of 40 mm.

Here is a detailed article with all the information regarding procedure of rcc slab roof laying. Unbonded construction with a minimum thickness of 100mm is recommended if there are cracks in the base slab or if good bond is only partially attainable or totally lacking. It also plays the role as a protection screed layer for waterproofing membrane of inverted roof system. Vslab is a precast prefabricated insulation concrete slab.

The minimum thickness of slab is specified by aci 318 11 section 9 5 3. What is the minimum thickness for concrete. The thinner applications would include drives walkways slabs and footers just to name a few. This action cannot be funded because the required u roof should be equal to or lower than 0 27 w m 2 k.

For applications with heavy traffic concentrated load of 35 6 to 58 7 kn a minimum unbonded topping slab thickness of 127 mm provides a better serviceable life. Minimum thickness of concrete slab beam column foundation and other structural members is selected to meet the design requirements as per standard codes. Rcc slab laying is one of major step in any type of construction so it is mandatory to know all the points related to laying rcc slab. A solid slab of concrete capping the top of your house.

Minimum thickness for two way slab construction designed as per methods provided by aci 318 11 code namely direct design method and equivalent frame method. Septic tanks or soak pits are useful for disposal of waste in the. Further insulation through additional 8 0 cm of eps ir8 of the roof slab. The thermal transmittance equal to 0 75 w m 2 k becomes 0 30 w m 2 k 60.

Minimum rcc beam size should not be less than 9 x 9 225mm x 225mm with an additional slab thickness of 125 mm. Exact specifications vary but most concrete roofs are several inches thick. Four inches is most common for a slab. Septic tank it s principle and guidelines.