HELP!!! We live in a cement block house, with
a crawl space. The floor joices, etc...had to be replaced from the bathroom to the front of the house. I noticed that the ventilation spaces where all blocked off. Now that I have removed the insulation and blocks to let air circulate, I noticed that the one's in the bedroom have been boarded over with only about 1/4 inch opening and with no screen to keep the critters out. (And they are cominging in, yuck.) It is heated by oil and they have used one the ventilation spaces to run the oil into the house. Of course I don't know what I am doing but I have thought about drilling some holes in the wood and then using cement nails to attach the screen on the outside of the cement block. And then maybe makeing some kind of wood thingy(?) with insulation to lay up against it in the winter. I have also noticed that the addition to the house(it's a very old house) does not have any ventilation space area openings for the crawl space. Any suggestions? Also what is ground gases, how do you detect it and how do you prevent it?
Thanks,
AnnaEva