SkullMesaRanch Posted August 19, 2023 Share Posted August 19, 2023 I read through most of the REScheck posts but still didn't find the answers I was looking for. How much margin do you design in for your compliance to REScheck? For example, If I use R-13 I get a compliance of 4.2% and if I use R-21 it's 22%. Of course, I should use the best insulation I can (it's my house), but just wondering what compliance margin is being used by others. This REScheck was done manually without CA export. Link to comment Share on other sites More sharing options...
DRAWZILLA Posted August 21, 2023 Share Posted August 21, 2023 I don't use Rescheck but i always try to get the best energy efficiency under the budget provided to me. Link to comment Share on other sites More sharing options...
Joe_Carrick Posted August 21, 2023 Share Posted August 21, 2023 I've been to Cave Creek several times. It can get pretty cold in the winter and pretty hot in the summer. Use the best possible R rating that will fit. Definitely better than what REScheck recommends but if you can go higher - do it. Link to comment Share on other sites More sharing options...
SkullMesaRanch Posted August 21, 2023 Author Share Posted August 21, 2023 I was trying different options to see the effect of the variables. In all cases I forgot to add the continuous 1" rigid insulation (R=5) for stucco exterior. With R-13 it increased the results from 4% to 24%. I'm putting in good windows and doors so it comes down to the insulation. If I use R-21 in REScheck, I get 39% compliance. Joe, are you say there's no point of diminishing return? Link to comment Share on other sites More sharing options...
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