Free roofing tools for Northern Beaches homes
Answer the roof questions that depend on where your house sits: salt air from the surf, bush fire prone land behind it, and the rain that has to get off the roof. Each tool shows the rule it uses and links the source.
- BlueScope, NSW RFS and building code sources
- Free, no sign-up
- Print or share the result
Which roofing steel suits your distance from the sea?
Enter how far the house is from the surf or from Pittwater and the harbour. See which Zincalume, Colorbond and stainless steel BlueScope lists for that distance, plus the screws, flashings and washing that go with it.
BAL roofing requirements for your roof
Pick your bushfire attack level and roof type for the NSW RFS roof rules (sarking, fascias, flame zone, approvals), CSIRO’s best practice, and what your BAL certificate will specify.
How many downpipes does your roof need?
Enter a gutter run, the distance to the ridge and the roof pitch to work out the roof area, how many downpipes the building code’s tables call for at Sydney rainfall, and which eaves gutters suit.
Roof area calculator: sloped area from plans and pitch
Enter each roof section’s plan length, width and pitch to estimate the sloped roof area in square metres or feet, with an allowance you can change, before comparing per-square-metre quotes.
Know what the roof needs?
Describe the job, what the roof is made of and your suburb. Include the number of storeys and any access issues.
