Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
Gutter sizing australia.
Total roof area also affects runoff.
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.
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.
They can be 4 5 or 6 inches.
5 inch 5 520 square feet.
More than just functional stratco gutters are stylish and designed to form a neat finish to the edge of both domestic and commercial roofing.
The larger a gutter downspout the more water it can drain quickly.
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.
The total rainfall and how rapidly it falls will affect the runoff from the roof.
Select eaves gutter and gutter slope.
Most downspouts are rectangular but they can also be round or square.
The eaves gutter selected is quad spouting with an effective cross sectional area of 6125mm 2 installed with a slope of 1 500.
Stratco gutters are designed to minimise the risk from serious water damage to the building making stratco guttering a wise investment.
Then use the chart 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.
6 inch 7 960 square feet.
Gutter sizes for a half round gutter are 5 to 6 inches in width.
Gather some basic weather information to calculate the proper size for gutters and downspouts for a house.
Gutter downspout sizes are 3 to 6 inches.
The gutters downpipes and overflow gdo calculator assists in developing a better understanding of the ncc volume two part 3 5 3 gutters and downpipes acceptable construction practice acp provisions.
5 inch 5 520 square feet.
An inch of rain is not much but it if falls in half an hour it could flood a gutter.
However too large a gutter downspout can look unattractive.
To use the gdo calculator enter information about the location roof design and types of overflow measures.
Then use the information below to see what size gutter you need.
Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
