General guidance only — all construction work must be overseen by a supervising engineer This handbook is compiled from standards and laws with every source cited, andis being reviewed for certification by engineers Use it to know what to look at, what to ask and what evidence to request on site It is not an engineering determination and can't replace an engineer · Terms of use · Limitations of the handbook

Roofing

Carports, awnings and roof extensions

Page code P43 · 42 inspection criteria · 3 illustrations

The Ministerial Regulation allows floor or roof area to be extended by a combined total of no more than five square metres, on condition that the number of columns or beams is neither reduced nor increased. These two conditions sound like a wide loophole, but a carport that can really fit one car has an area of more than five square…

This page contains
Three tests that must all be passed — and a carport fails the first two at once
Prove with your own tape measure that a carport exceeds five square metres
Awnings — a small item whose removal counts as demolishing a building
Rainwater from the added roof — wherever it falls belongs to someone
Different foundation systems — why the joint cracks in every house within two to three years
If you know while building that you'll extend later — five things you can prepare now

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