Flat Roof Live Load Uk

Calculating the load on a flat roof is a challenging task for the layperson that involves knowledge of building materials their weights and local building codes.

Flat roof live load uk.

Roofs of buildings used for promenade or incidental assembly purposes shall be designed for a minimum load of 400 kg m2 4 kn m2 or heavier it required. Step 4 determine the flat roof snow load. For roofs that are flat and with ground snow loads lower than 20 pounds per square foot the roof snow load is equal to 70 of the product of the exposure thermal and importance factors and the ground snow load. A flat roof usually consists of the following.

A roof is considered to be flat when it is of a slope of 1 5 o to the horizontal. The standard guide in the u s the asce 7 05 lists weights and stresses for all building materials expressed in pounds per square foot. Waterproof membrane to prevent water penetrating the structure and interior of the. 0 9d 1 0w a load factor of 1 6 when adding to load 7.

Standard loads for structural calculations in residential properties. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. For ground snow loads greater than 20 pounds per square foot the roof load is equal to. 0 9d 1 0e effect or 0 9 when resisting the load when permanent.

The live load on a roof is the weight of any temporary objects on the roof. Schedule of permanent loads commonly found in residential properties. Flat roof construction for residential. Live loads on roofs table 1 3 gives lives loads on flat roofs sloping roofs and curved roofs.

1 2d 1 0e l 0 2s when h loads are present they shall have 6. Minimum uniformly distributed live loads adapted from sei asce 7 10. Where snow isn t a problem the live load can come from people working on the roof and any equipment they take on to the.