Field guides

How-tos from the trade counter

Straight-talking how-tos from the trade counter. No fluff — just the order of operations that keeps water out.

Get your material count right before you order. A quick field method for working out how many sheets and screws a simple gable roof needs.

The right order of operations for laying corrugated zinc-aluminium sheet on a timber-framed roof — and how to keep it watertight.

Tracked down a leak on a low-slope roof? Clean it, tape the seams and roll on elastomeric coating for a waterproof, heat-reflective finish.