Radiant barrier paint

[pied2]

Anyone ever paint this stuff on your roof (bottom) or any other experience? I am obsessed with lowering my electric bills.

 

[WB_Rowdy_Yeats]

Would it be less of a bother to staple a radiant barrier across the bottom of the roof rafters in your case? Anyway, here is a web site on the subject:The Link

 

[pied2]

I've looked at that as well. There seems to be a potential with moisture build up between this type of barrier and the insulation.

I have read a lot of websites, but most are from the manufacturers and as such are a little biased. I was trying to see if anyone had done this to gague the pain in the *** factor as well as the benefits.

 

[jimmyjazz]

Make sure you give the radiant barrier some airspace to work across. Otherwise, it won't work.

Installed correctly, a radiant barrier works wonders. We recently added ~ 1000 sf to our ~ 1200 sf house, as a 2nd story above the front 80% of the old house. We added a second HVAC unit to service the downstairs, and used the old one to service the upstairs. I was mortified that our energy bills were going to essentially double. They were already close to $400/month during the summer.

Our bills have gone DOWN. Of course, the quality of the new roof structure helps, but I am convinced that proper energy design is the main reason we're now paying less for our heating and air conditioning than we were when the house was 55% the size it is now, with one less HVAC system. We used roof decking that has a radiant foil barrier on the bottom side, and we insulated the attic floor, so the radiant barrier is visible. (Again, that's the only way it will work. If you put the insulation on the attic roof, right up against the radiant barrier, you render it worthless.)