Installation of roofing underlay
Underlay is an essential part of roofing installation, but there still appears to be some uncertainty about its use and installation.
This website is best viewed on a newer browser than the one you are using. Learn about upgrading your browser (opens in a new window/tab)
Welcome to BRANZ Build. Skip to main content.
Showing results 1-5 of 5
Do you want to try searching all of BRANZ?
Order by:
By Alide Elkink – 1 June 2007, Build 100
Underlay is an essential part of roofing installation, but there still appears to be some uncertainty about its use and installation.
By Alide Elkink – 1 August 2007, Build 101
Dormer roof junctions with profiled metal roofing always present a tricky area of flashing and their detailing is often conveniently overlooked by designers.
By Stephen Sargent – 1 April 2007, Build 99
A wall or roof underlay is very different from a vapour barrier. One lets moisture through and out of a building and the other doesn’t. Using the wrong one will trap moisture where you don’t want it.
By Nigel Isaacs – 1 October 2007, Build 102
With electricity costs on the increase and air pollution a serious issue, thermal insulation has an essential role in keeping a building warm, dry and comfortable for its occupants while helping to preserve the environment.
By Dallas Crampton – 1 June 2007, Build 100, Feature article
Graffiti is one of the more obvious and annoying forms of vandalism. It can be found in most urban environments but some buildings attract far more than others.