Author Archives:
Can Foil be Used As Insulation?
Seems like a simple enough question doesn’t it? Unfortunately the answer is not so simple. In countries where excessive heat is a problem the use of foil is prevalent, for… Read more
Help with NZBC H1: BRANZ House Insulation Guide 4th Edition
The ‘orange’ BRANZ book I keep talking about is now ‘red’. For those of you using the BRANZ House Insulation Guide, you’ll be pleased to know they have brought out… Read more
NZBC H1: Solid Masonry Wall Insulation
One of the main changes in NZBC H1 is how solid masonry walls are now treated. Before the change, if you were to design a home with a block or… Read more
NZBC H1: Recessed Downlights and Insulation
The use of downlights in ceilings reduces the effectiveness of ceiling insulation and needs to be accounted for when meeting NZBC H1. I’m not sure whether these are still in… Read more
Insulation and Skillion Roofs
With the building code calling for higher R-values, one of the issues faced by designers is the space required for insulation, particularly in skillion roof situations. A few designers have… Read more
NZBC H1 Compliance: a Worked Example of the Calculation Method
Over the past year or so, the majority of the insulation queries I have received concern the changes to NZBC H1 and how to use the Calculation Method. So I… Read more
