Guides & R-values
Insulation guides & R-value resources.
Straight, useful reading from 40 years on roofs: costs, R-values, DIY, and how to spot a dodgy operator before they get up there.
What type of roof do I have?
Identify your roof — iron, tile, fibro, metal tile, ClipLok, raked or exposed-beam — with real photos and job videos, and exactly how we insulate each one.
What happened to Australia's insulation companies?
The Yellow Pages were full of them: many cellulose makers. Most are gone now. The grant that did it, and a directory of the names that didn't make it.
How to choose a local insulation installer
The installer matters more than the product. Why we don't use subbies, and the 6 questions to ask before you book.
How not to get ripped off in Brisbane
40 years of tricks of the trade: the questions to ask before anyone gets on your roof.
Downlights & insulation: the R-value killer
Halogen downlights force a 200mm bare gap that can drop R4.0 to R1.4. The safe, standards-based fix (and why we don't bury them).
Climate zones & R-value (NCC)
What R-value you actually need for a SE-QLD roof, and why more isn't always better.
Underfloor insulation cost (QLD)
Real SE-QLD price bands for polyester vs foam, and why the cheapest can cost the most.
Best underfloor insulation for SE QLD
A climate-zone-2 buyer's guide: polyester > foil > foam for our humidity, resale and removability.
DIY insulation batts like a pro
The real safe-site method from our training, and why most people end up pumping cellulose instead.