Roof Gutter Design

Unfortunately figuring the right sizes of the gutters and downspouts for your roof involves some head banging mathematical formulas.

Roof gutter design.

Choose the 10 year frequency 5 minute rainfall see chart 1. Enter the dp size and find the number required or enter the number of dp s and find the size required. Henry 887 tropi cool 100 silicone white roof coating henry 887 tropi cool 100 silicone white roof coating is a premium 100 silicone moisture cure coating designed to reflect the sun s heat and uv rays as well as protect many types of roofs. Record this on line 2.

Leaking gutters and downspouts can cause serious damage to a building s interior as well as exterior and repairs can be expensive. Record this on line 1 of worksheet 1. The previous programs and also the code work out the most economical combination of gutter and dp. The design of gutter and downspout assemblies is an area of building design which demands special attention.

It is based on the australian plumbing code as nzs 3500 3. Wp56 the optimum sizing of gutters for domestic roofwater harvesting 2 1 introduction gutters are an almost essential but relatively cheap part of a roof water harvesting rwh system. Roof gutter design instructions 1. See more ideas about downspout gutter gutters.

When a gutter gets full it requires a dp. It has rainfall intensities for major australian towns but any intensity can be used. Jan 20 2015 explore angelica muhi jarabe s board gutter design on pinterest. Box gutter with rain water head at end of box gutter.

Simplified suitable for flattish roofs with little or no vertical faces or steep roofs draining to one side of box gutter only or any roof if you are in a hurry and make the necessary allowances for all catchments. Find the size and number of downpipes spouts required for any size roof and the size of the associated eaves gutter. For animal waste management use the 25 year frequency 5 minute rainfall. While suitable for use in all climates the 100 silicone chemistry is especially suited for extreme tropical environments which are exposed to some.

That is when the maximum capacity of the gutter equals the max capacity of the downpipe.