Aluminum Foil On Doorknobs

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FAQ

I am in the process of having a new roof installed. What are my options in regards to improving its' insulating properties?

If you have clear access to your rafters, the best insulation possible (after installing your vent baffles) is sprayed on foam. I didn't say polyurethane foam on purpose, as there is now a soy based foam available with exactly the same working and thermal characteristics as the petro-poly goop, with none of crude oil. But i digress. Sprayed on foam has the advantage of not only thermal insulation but it also seals everything that it comes in contact with, thus stopping any air movement, something that no fiberglass or extruded polyurethane could ever do. Industry experts are still debating this but, it looks like 1 inch of sprayed on foam (with it sealing qualities) does as much, if not more, than 3 1/2 inches of fiberglass and, foam will never sag or absorb moisture like glass does. Fill your rafter spaces and gloat to the neighbors when your bills come in. :)

1) What thickness of rigid insulation is used on flat roofs?

I've seen as little as 2" and as much as 8".

I have read in some articles about roofing that it is recommended to use attic roof insulation in ones roofing. Is this true?

If it's an unfinished attic space, you'll want insulation on top of the ceiling, but not in the rafters which would prevent airflow from your soffit to the ridge vent or gable vent if you have that. You need it on top of your ceiling to stay cool in the summer and warm in the winter.

I know when you inhale the insulation from the roof irritates the throat but what can you do to clear it from your throat after inhaling it?

it's not your throat you should be worried about. it's your lungs. wear a respirator....or at the very least, a dust mask. you only live once so make it last.

My new room is an addition to a mobile home, and has a single-layer metal roof. I have 3 "main" concerns. What are the cheapest and/or most effective ways of eliminating them?1. No heat insulation- cold air sinks from the roof to my room, and my warm air rises to the roof and cools.2. Condensation forms on the inside and drips occasionally. My computer, bike, and downhill boards are in here!3. It seems like bugs could easily get into my room, but that's just a suspicion.

You really need a correct "building paper" under the iron. It is aluminum with a tar sandwiched between...You can also use plastic sheeting as a vapor barrier..

Sorry, I asked this in the maintenance and repair section, but no luck.Which is better to have in a 2-story home? My last 2-story home was always hotter upstairs than down. (Physics...heat rises)

the best is more attic isolation so that the heat don't come directly to second floor.

Hi, I have got a physics question and was just wondering about it.. Can someone pls tell me how does roof insulation work? how is it effective? How does the insulation changes the heat circulation and transfer inside a house?I know that the insulation prevents radiation from the sun and overheating.. but any more details about radiation, convection and conduction of heat pls?

Well insulation makes a dead air space (air is stagnant). Since the air is not moving the transfer of hot and cold is slowed down considerably. But since you have to create cross ventilation to reduce rotting in wood and the build up of explosive gasses. Its a crap shoot that it even does any good. Radiation is heat so that's covered by the dead air space. Convection is usually not an issue with the cross venting. Also for conduction the insulation should slow it down considerably.

the name of the company is SIG plc.I need help asap, cos I am struggling to figure it out. If it is not, what kind of competition is it???

Sure can..........if it's the only store in town...........