Quote:
Originally Posted by MandoMan
My house was built in 1998, and people seem to have tramped around in the attic a lot, perhaps when the original owner was adding a lot of storage up there. In any case, I can see the bottom chord of the roof trusses in places, and those are 4” high. I think my heating and cooling bill isn’t too bad, but more insulation will definitely reduce heat transfer, whether or not it is cost effective. Also, I have a guest room that is always much hotter than the rest of the house in the day. I wonder if it was ever insulated at all. I need to get up in the attic and check. I thought it was morning sun, but I put up a big shutter that keeps the sun off, but the room is still hot.
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The insulation can be checked with a machine that can measure the insulation value from below without going into the attic. A home inspector, such as Frank D'Angelo, has such a device which could be used to evaluate the insulation in your house. You may also be able to get an energy audit where they may be able to do the same thing.