Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
Gutter sizing australia.
They can be 4 5 or 6 inches.
Downspouts also come in different sizes such as 2 3 inches and 3 4 inches in size.
Box gutter with rain water head at end of box gutter.
5 inch 5 520 square feet.
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.
Then use the information below to see what size gutter you need.
When you are completing a gutter replacement the first point to note is that gutters come in different sizes.
Select eaves gutter and gutter slope.
The total rainfall and how rapidly it falls will affect the runoff from the roof.
The larger a gutter downspout the more water it can drain quickly.
More than just functional stratco gutters are stylish and designed to form a neat finish to the edge of both domestic and commercial roofing.
To use the gdo calculator enter information about the location roof design and types of overflow measures.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
You can choose a downpipe size and calculate the number required and the corresponding eaves gutter size.
Stratco gutters are designed to minimise the risk from serious water damage to the building making stratco guttering a wise investment.
Most downspouts are rectangular but they can also be round or square.
An inch of rain is not much but it if falls in half an hour it could flood a gutter.
Gather some basic weather information to calculate the proper size for gutters and downspouts for a house.
Gutter sizes for a half round gutter are 5 to 6 inches in width.
Gutter downspout sizes are 3 to 6 inches.
Total roof area also affects runoff.
The eaves gutter selected is quad spouting with an effective cross sectional area of 6125mm 2 installed with a slope of 1 500.
Then use the chart below to see what size gutter you need.
However too large a gutter downspout can look unattractive.
6 inch 7 960 square feet.
The code limit is 150mm for dp s and 26 800 sq mm for flat eaves gutters the program will calculate the size and number of downpipes downspouts leaders required and the eaves gutter sizes for any roof.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
