On chart 1 1 find the vertical line representing l 40 12 2 m.
Box gutter sizes south africa.
Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country.
Helm engineering is one of south africa s largest manufacturers of industrial rainwater goods.
All of our chromadek and alternative types of industrial specification and size.
Servicing all schools businesses and industrial parks housing estates and individual homes.
But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing.
Easy flow gutters installs industrial gutters of various types including the likes of chromadek as well as zincalume and colorlume.
Learn more how to storm water design for building sites.
Watertite guttering pty ltd has been successfully manufacturing and installing made to measure aluminium guttering systems in cape town since 1973.
It may be lined with epdm rubber metal asphalt or roofing felt and may be concealed behind a parapet or the eaves or in a roof valley.
Helm also manufactures custom made gutters and downpipes designed and manufactured to suit your specific project needs.
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An extensive range of standard gutters downpipes and accessories are manufactured.
Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.
Our range also includes any shape or size fascia and barge boards up to 1225 mm girth various sizes and designs of rainwater hopper heads and under eaves closures to fit structure specifications.
We can manufacture and install any size gutter to clients specification up to 1225 mm in length.
The area to be drained by each section of gutter will be 1200 sq ft 111 5 sq m the rainfall intensity from table 1 2 col a is 6 in hr 152 mm hr the length of each gutter section is 40 ft 12 2 m and the ratio of gutter depth to width is 0 75.
Sa gutter home page.
Builders 30 day trade credit.