We bought a house that was built in 1973 and seems to have little insulation. I have a few questions if someone could help.
1) The kitchen is over the garage, so the kitchen floor(hardwood)is very cold. Last fall, we had insulation blown into the garage roof, but has not been that effective- it is still cold. Looking at another post, someone recommended blowing in air tight expanding insulation. That was not presented as an option to us by either company that came to give an estimate. What they blew in was blue fluffy stuff. Should we investigate getting the insulation removed and new expanding insulation stuff blown in?
2) The walls are cold. You put your hand against the dry wall and they are cold! Representatives from the same companies noted above looked behind some wall outlets and observed there is some insulation. As a result, they did not recommend blowing insulation in the walls- the old insulation would prevent the new stuff from filling the cavity. I still feel like there must be some option, but 2 different people said the same thing.
3) I never asked this, sounds like a stupid question but here it goes. We did have them blow insulation in the attic. I went up there recently and noticed we have vents at the end of each side of the house that are uncovered ( there are screens and slats to keep out animals, but cold air comes right in) It makes sense to have the attic vented in the summer, but should we be boarding/insulating during the winter?
For heat we have forced hot water that is heated by gas. The furnace is original and not that efficient. ( I do have it cleaned every year).
We have been been doing little things to improve the comfort and reduce energy costs ( ie the insulation, programmable thermostats, weatherstripping), but we feel like it is still cold, here are probably other things we could do and are not thinking about, and we are not being smart about our decisions.