Browse Forums Owner Builder Forum Re: Reasonable Insulation Requirements KDRB 5Jan 17, 2019 4:30 pm Even if you only need R4. It makes sense to go R6 as the cost isn't much more. Note R2.7 is much more expensive than R2.5 in the walls. You don't have to go thermally broken windows to get U Values of 2.90. As mentioned, ECOECO offers good value windows. Their Awning windows with Low-E glass has a U value of 2.8. Also add decent wall wrap and sarking, that may reduce your insulation and window requirement however as an owner builder why not use the money you save upfront to upgrade your insulation/windows. You'll save money in the long run and also be more comfortable. 😃 will do an exclusive one for Simeon.. COVID back at home.. kept it simple & we moved in.. & yesterday was the first day at our new home.. Few more bits to go -… 4 25788 Keen to hear from people in the area who have got KDRB done on whom they got the build from? Looking for recommendations. Thanks 0 21890 Seems good to me. I've been told $4-5k/sqm is reasonable in Perth. 2 12455 |