first off! thank yoiu for clicking this!! :) question: A package of aluminum foil contains 50ft^2 of foil, which weighs aprox 8 ounces,Aluminum has a density of 2.70g/cm^3what is the aprox thinkness of the foil in millimeters?!I would really apreciate it if someone could help me get this! b/c i hoesntly couldnt!! :(
There are builders' books that explain the amount of air turnover you need in your attic, not just to remove heat, but also to remove water vapor that leaks through from the houseIt is very common to have gable vents that are not adequate due to the amount of blockage by the insect screenYou could, in theory, replace a passive gable vent with a powered vent with the proper CFM rating, attached to a thermostat for summer useYou could also install solar-powered ventilation fans near the ridge.
Density mass / volumeThe question gives us the density and the massSince volume lengthwidthheight, we need to know the height (thickness) First I would convert the 8 ounces to grams since the density uses gramsSo 1 ounce 28.3 grams (I just googled this)8 ounces should be 226.4 gramsSo we know density and massNext we plug in what we know into the density equation and it becomes 2.70g/cm^3 226.4 g / V Multiply both sides by V and then divide by 2.70 gets you V 83.9 cm^3 The question says the area of the foil is 50 sqft which we will convert to sqcm(1 ft 30.48 cm) So 50 sq ft 46452 sq cm (Be carefulI used 1 ft 30.48^2 sq cm because the area is squared) Plug this into your volume equation and we get 83.9 cm^3 46452 sqcm thicknessSolve for thickness and we should get .0018 cm which is 0.18 mm I haven't checked my math so you should probably double checkHope this helps!
you should put space blankets on your roof to keep them from getting hot
No, the attcic and the upstairs should be sealed off from each other.if your attic fans are pulling air out of the upstairs.you have a serious insulation problem in your housenow and Upstairs exhaust fan is a good idea
