Reinforced Concrete Roof Gutter Design

Often referred to as concrete guttering finlock gutters were mainly designed by a company called royston and rather worryingly they now cause long term problems for countless property owners.

Reinforced concrete roof gutter design.

For a roof to be effective surface water should be discharged quickly without ponding or stagnation. Gutters generally are made from metal such as steel zinc aluminum or copper but can also be of pvc ceramic or wood. For animal waste management use the 25 year frequency 5 minute rainfall. A concrete roof is exactly what it sounds like.

Downspouts carry the runoff to the ground or to a collection tank. Choose the 10 year frequency 5 minute rainfall see chart 1. The earlier concrete gutters were heavy enough but the modern version with a metre width of reinforced concrete apron is putting a huge weight up there and requires specialist structural engineering design using reinforced columns and beams to support all that weight. A solid slab of concrete capping the top of your house.

For an exposed concrete roof installation it is recommended that a competent concrete mix design consultant or concrete supplier be engaged to assist in the development of the concrete mix to be used. A roof gutter is a u shaped trough installed so as to collect rainwater as it runs off the lower edge of a sloping roof. Proper design of falls in reinforced concrete flat roofs is most important in creating flow paths to suitable discharge points. Concrete compressive strength fc 3 ksi.

Steel yield strength fy 40 ksi. Live load 40 psf figure 1. Structural concrete deck a cast in place concrete deck serves as an integral part of the structure and is designed to carry heavy loads normal weight concrete is typically used for cast in place construction. Beneath the roof cover structural concrete roof decks are commonly topside insulated using adhered insulation panels or cast in place lightweight insulating concrete.

Design the roof slab beam and column of house given in figure 1. Sufficiently waterproof concrete can be achieved and is regularly used for water tanks ships pipe and more. Record this on line 1 of worksheet 1. Examples of royston concrete gutters pattern 828462 pattern 647813.

Reinforced concrete roof gutter h 40. Slabs s1 and s2 to be designed. 2 thick brick tile. Exact specifications vary but most concrete roofs are several inches thick.

For example the florida based company hurricane proof systems offers a 7 inch 18 centimeter slab of concrete in three layers. Find out all of the information about the pretersa prenavisa product. Next it is important to select the appropriate waterproofing membrane.