I am waiting on a quote to spray foam my new homeIt is 28 x 52 with 8 foot wallssingle story and I am foaming the walls onlyI thought maybe one of you might be in the buisnessalso will my home be able to breath well enough if I have R 38 fiberglass in the ceiling and R 19 in the walk out part of my basement (about half of my basement)?
45lbs (tight but not to tight) and screw in by and first, because if cross thread it, it will cost big bucks
hand tighten then a quarter turn.
the best way to this job is to just turn them so there hand tight then give them a quarter turn more ?
tighten til they bottom then tighten 1/6 of a turn this works on iron and aluminum also in some cases torque wrenches can get wrong readings so as a professional mechanic with over 20 years experience this would be my advice to a novice also any book that covers tune up will have this under torque spec.(132in lbs - haynes)
I can not answer about the price, but I may be able to get you to clarify enough that more knowledgeable insulation pros can answerAre you in mid-construction, so that the spray foam can go in the stud cavities before you put up sheetrock? If sheetrock is already up, you probably cannot do the spray foam without removing itAs to the fiberglass - Whether or not the house can breath has nothing to do with fiberglass, but only with what sort of air-sealing job was doneSpray foam (properly applied) is a good sealer - fiberglass only acts like an air filter if air is movingIt takes a very careful air-sealing job to get a house too tight, but it is possibleThe best (only?) way to know is to have a blower door pressure test performed on your house, by a qualified technicianThe tech will do computer analysis of the blower door results and can tell you if your house is too leaky, too tight, or just about right If too tight, you will need to add outside ventilation, ideally with a Heat Recovery Ventilation (HRV) system which is able to recover heat to warm the incoming air (much better than having an uncontrolled leak in your home.).
