Q:I would like to know which direction the one side with foil faces. The roof or the interior of the room?This is an attic room. Roof being "raw" i mean that it looks like cedar tongue in groove boards...then shingles on top of them. Which way do i face the foil side of the sheet..?thanx

Super Tuff R Insulation

Q:The attic was converted into two rooms and I want to add insulation but the space between the ceiling of the rooms and the roof is about 5 inches? How should I do this?

It sounds like you will have to use blown insulation. They will drill holes in the walls to blow the insulation in. Over time, this type of insulation will drop down or compress; so you will have to top it off over time. You might also add acoustical tile to the exiting ceiling to add a little more insulating value.

Q:This is blocking airflow and I'm having it removed after I bought the house. There is already insulation on the attic 'floor'. This is double insulated and is not correct. Why would anyone do this?

No building codes back then, and maybe he was thinking about putting an extra room up there then you would have to insulate the rafters also

Q: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. :)

Q:hi me and my friends made a lounge out of my old tin roof shed we have a tv speakers and a few other electrical goods... since winters on its way we were wondering whats the best and cheapest way to insulate the place note that its a tin rof but has wood under it where the old indulation used to be the place is pretty chilly and sometime damp plz help we dont wanna be freezing our asses off in there thanks :)

What is he using glue on? Buy rolled fiberglass insulation, install it between the rafters and wall studs...paper side in. You can cover the walls and ceiling with drywall, OSB, plywood if you wish. You do realize that insulating your shed isn't going to make it much/any cooler don't you? You will need an air conditioner for that, but the insulation will help keep the AC in.

Q:Why is the most insulation needed in ceilings or roofs? Just wanted to know

well insulation in general is to keep the inside temperature different than the outside. since hot air usually rises, i think it is to keep warm air form escaping in winter. also you don't usually have a heater in the attic, or air conditioning so insulation will keep the air in the attic from having an effect on the air within the house. that is my idea as to why

Q:do i leave air gap in attic roof for insulation?

The best way to set up an attic is to put a vapor barrier under the rafters (before nailing on the gyproc), then put the insulation (fibreglas batts) between the rafters to full depth (10 or 12 inches). Soffit vents are installed under the eaves at the sides of the roof, and gable vents are placed near the peak of the roof at the ends. This allows for airflow resulting from convection, particularly important in the summer months to remove heat buildup in the attic. If the insulation is adequate, it will not only isolate this heat buildup from the inside of the house in summer, but will prevent heat loss to the attic in winter. (The airflow in winter will be minimal, but will remove any moisture/condensation that might collect otherwise.)

Q:Can you put fiberglass insulation on the under side of roof tiles in the loft in the house?

You should not be able to see your roof tiles from inside your house. So no, it can not be done. You can attach insulation to the rafters if that is what you meant.

Q:I am thinking about getting cavity wall and roof insulation at the moment.But since summer is approaching, I fear that getting the insulation will mean that the house will be very hot at night. (During day time the house will accumulate heat from the sun, and the heat cannot escape).I also fear that the ventilation will be bad and the air in the house will not be as fresh.Any advice please?

please stop worrying.your house will be warmer,but not hot.it is also a good idea to open your windows for at least 20 mins a day to allow claen/fresh air to circulate.you are correct in doing the job now though.

Q:i have about 200 sq ft of odd shaped polystyrene foam (rigid) insulation between 3" and 5" thick. it's leftover from installing a flat roof on a commercial building. creative ideas anyone? grind it and use it as attic insulation in a home?thanks.

I'm a bit confused here Andy. If the flat roof needs replacing, when it is removed what is revealed is going to be exactly what you would see if you removed the ceilings. So why consider removing the ceilings if they are ok? When the flat roof is replaced put the insulation in then. Whilst rockwool would have been the material to use there is now roofing insulation board that is much more efficient, 50mm board gives equivalent insulation of something like 150mm rockwool. If the flatroof isn't fitted with suitable vents to keep it ventilated fit them when the roof is done too. The only reason I can see for replacing the ceiling plasterboard is if it hasn't got a vapor barrier ie foil backed board.