Roof Slope Slab

A 2 slope will probably ensure better drainage we could also find no slope tolerance for use when a floor slope is specified.

Roof slope slab.

For example a slope 20 feet long that drops by 1 1 2 feet has a percentage pitch of 7 5 percent 1 5 20 x 100 7 5. Set forms so that the concrete slab surface slopes a minimum of two percent or 1 4 inch per foot to provide adequate drainage. Hips and valleys have to be engineered and a lot of it is using experience and professional judgment on the hoffman home king spec ed a steel i beam at the ridge line with the lite deck running perpendicular to the ridge. Sloping slabs under gravity load would be subjected to bending and axial thrust.

A sloped concrete roof is much more complicated king confirms. If the problem is statically determinate the equilibrium equations would. Exact specifications vary but most concrete roofs are several inches thick. A concrete roof is exactly what it sounds like.

A solid slab of concrete capping the top of your house. Aci 117 90 st andard specifications for tolerances for concrete construction and materials gives a level alignment tolerance of 3 4 inch for top of slab elevation of slabs on grade. Use a scratch template typically a piece of 2 by 4 or 2 by 6 lumber equal to the specified slab thickness with stakes attached to the top surface at each end or a string line across the top of the forms to. For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers.