Wall underlay installation
Wall underlay plays an important role in the weathertightness of exterior wall assemblies in light timber-framed residential buildings, yet often it is poorly installed. Getting it right can be as simple as 1, 2, 3.
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Practical how-to articles for builders and designers showing good industry practice and interpretation of the NZ Building Code and standards.
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By Greg Burn – 1 August 2009, Build 113
Wall underlay plays an important role in the weathertightness of exterior wall assemblies in light timber-framed residential buildings, yet often it is poorly installed. Getting it right can be as simple as 1, 2, 3.
By Alide Elkink – 1 August 2009, Build 113
Correct sequencing of fascia or barge board construction where there is no soffit is essential to prevent moisture ingress.
By Tony Conder – 1 August 2009, Build 113
It is essential to consider the thickness of insulation product needed to achieve the required R-value when designing a low-slope or skillion roof structure. For a given R-value, product thicknesses can be quite different.
By Ed Soja – 1 August 2009, Build 113
A penetration seal is needed for any hole or gap in fire resistance rated walls and floors to maintain their fire resistance rating (FRR). Penetration seals are system-specific, so selecting the correct one may be more involved than you thought.
By Tom Edhouse – 1 August 2009, Build 113
Designers should be designing roofs with enough space between the roof underlay and top plate for the thicker ceiling insulation now commonly used. Here are some options to avoid getting caught short.
By Greg Burn – 1 August 2009, Build 113
If you’re confused about how to use compliance paths in your assessments of Building Code compliance, read on.