Evening all ... first post
I'm doing my own design, consent and build under an owner builder exemption for a new family home we've purchased in Auckland. The work will involve some exempt items as well as a new deck and insulation to external walls. I'm fine with the fact I require consent for these things and confident I can prepare things to an adequate quality to lodge.
What I'm struggling with is finding ways to prove building code compliance for the retro-fitted external wall insulation. There is little to go on and I refuse (at this stage) to pay an expensive wizard to generate (copy) a specific (generic) design.
Has anybody had experience with retro-fitted external wall insulation consents and can advise how performance was proven to meet code ? I'll have a mix of direct fixed Hardiplank on timber frame and brick veneer.
My current plan: Run with 70mm R2.2 glass batts set back 20mm from the building paper / cladding or brick cavity based on information out of NZS 4246:2016
Happy to share my experiences if of interest when this is all navigated successfully
I'm doing my own design, consent and build under an owner builder exemption for a new family home we've purchased in Auckland. The work will involve some exempt items as well as a new deck and insulation to external walls. I'm fine with the fact I require consent for these things and confident I can prepare things to an adequate quality to lodge.
What I'm struggling with is finding ways to prove building code compliance for the retro-fitted external wall insulation. There is little to go on and I refuse (at this stage) to pay an expensive wizard to generate (copy) a specific (generic) design.
Has anybody had experience with retro-fitted external wall insulation consents and can advise how performance was proven to meet code ? I'll have a mix of direct fixed Hardiplank on timber frame and brick veneer.
My current plan: Run with 70mm R2.2 glass batts set back 20mm from the building paper / cladding or brick cavity based on information out of NZS 4246:2016
Happy to share my experiences if of interest when this is all navigated successfully
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