Having an air test next week, any tips?

[Gone West]

2 hours ago, Mr Punter said:

With @joe90's house does anyone know approximately what difference to annual running costs the difference between this test result and, say 0.6 would make? Does 1.0 really make much difference?

I ran PHPP for my house design with air leakage results varying between 0.2 to 1.0 and there was very little difference in space heating requirement. I did it for a friend whose result was around 1.0 and was disappointed. I did put them on the AECB forum several years ago but can't find them at the moment.

[gravelld]

@joe90 well done, whichever way you look at it you have a high quality build.