Roof Slab Thickness For Residential Building

A solid slab of concrete capping the top of your house.

Roof slab thickness for residential building.

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. 5 to 6 inches is recommended if the concrete will receive occasional heavy loads such as motor homes or garbage trucks. The thickness of conventional slab is 4 or 10cm. Standard concrete floor slab thickness in residential construction is 4 inches.

Minimum thickness of rcc slab i recommend is 5 125mm because a slab may contain electrical pipes embedded into them which could be 0 5 or more for internal wiring which effectively reduces slab depths at certain places causing cracking weakening and water leakage during rains. In general 6 inch 150mm slab thickness is considered for residential and commercial buildings with reinforcement details as per design. For example one way slab thickness calculation is different and easier from that of two way slab. Slab on ground 1 4 minimum thickness of diaphragms.

1 3 minimum thickness of slab on the ground ubc recommends minimum thickness of concrete floor slabs supported directly on the ground to be 89mm whereas bcgbc4010a apply structural principles to residential low rise constructions determined minimum thickness to be 100mm. Manufacturers express the thickness of metal panels as their gauge with 22 gauge being the thickest and 29 gauge the thinnest of traditionally sold metal roof and wall panels. So a minimum thickness of 5 should be maintained. In the conventional type of slab there is no need for providing column caps.

The values for dead loads in table 3 2 are for commonly used materials and constructions in light frame residential buildings. The construction of the original building consisted of a reinforced concrete frame with cast in situ trough floors. 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. Each gauge represents a nominal decimal range.

Methods used for finding slab thickness varies for different types of slabs. Dead loads consist of the permanent construction material loads comprising the roof floor wall and foundation systems including claddings finishes and fixed equipment. Five to six inches is recommended if the concrete will receive occasional heavy loads such as motor homes or garbage trucks. A concrete roof is exactly what it sounds like.

Exact specifications vary but most concrete roofs are several inches thick.