24 Inch Wide Aluminum Foil

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I gutted the room and now would like to rebuild. One side of the room slants (it's the roof) and the other side of the room is a dormer (all low ceilings).I want to insulate the ceiling but have no ridge vents so no moving air as someone mentioned I should have. I want to install foam channels to keep the insulation away from the roof but not sure if this is a good idea without the ridge vents. I will have a vent to the outside installed on the very top of the roof however and the small attic space is open all the way through the other two upstairs rooms and I will add another roof vent on that end of the house. I will only be able to install 3 inch insulation but that's better than none at all. I live in the northeast and was told if the job isn't done right I can get ice jams in winter. Also I don't see any way to drill ridge vents. would it be ok to just install the styrofoam channels and insulate then sheet rock or am I asking for trouble? Thanks in advance for any help.
Suggestion: install the insulation with the foam channels but leave the center section (roof ridge area) open from end to end. At each end you can install a static vent or an active one. Depending on the amount of space you have you may be able to install a power vent.If you can send me a diagram with measurements I can give you a more definitive answer.
Rather than waste that heat on sunny days during the heating season, can it be used to help heat the home? Otherwise it would just passively be vented out. Has anyone done this? Is it a good idea or not?
not unless you want to be showered with fiberglass particles.
I am purchasing a mobile home with a shingled roof. The shingles need to be replaced (>15yrs old) and with the cost of heating going up each day I thought I would added some of that 2" thick rigid insulation. I would place this right on top of the existing roof and then place the firring strips for the metal roof right on top of the rigid insulation panels (which are 4x8'). By using 3" galvanized sheet rock screws I will get a good solid attachment. Then I will put the metal roofing on to the firring strips as normal. Does anyone see any downside to doing this? Has anyone tried this before?
The only downside I see is your miscalculation about the length of the screws need. Lets see, 2 inches of insulation, 3/4 inches of furring, leaves you with a solid 1/4 inch of bite, and we all know that the first 1/4 inch of the screw is meant for piercing, not holding. So plan on 4 inch screws, because you still need to penetrate the old roof and bite the structure. Don't forget to plan your drip edge which now will have 2+ inches of roof thickness to carry the rain water over into your gutter.
I am building a porch roof over an existing patio. The rafters are fabricated I-beams. I plan on putting aluminum soffit under the I-beams. On top of the roof I would like to put down a metal roof. I already put down 3/4" OSB and a rain/ice barrier. Do I need insulation and/or ventilation on top of the rain and ice barrier, or can I get away without it?
the ribs in the metal roof will ventilate it - insulation is only necessary if you plan to heat it
Live in Houston, very hot and humid. Looking at adding radiant and additional insulation to roof in house. We have a lot of sun, and AC bills.
we live in the desert, and got our roof coated, and instantly noticed the difference, it is much more insulated, and provides protection against leak (which was the main reason we had it done)
the best way to thermal insulate and water proofing of rcc slabs economical, may be some poly urethane material or whatever but should be very effective and light weight.
use a polythene sheet . i dont know about where u live but where i live we get very long and broad size thick polythene sheets to make shelter or the protect from rain . even poor ppl use it to make slums . they attach a sheet in bamboo and they bury half of that bamboo stick inside the ground and by arranging 4 of them like this in a square area they make a bamboo frame. then as i said they attach sheet and make temporary home but they live there for years.
Above the trailer roof is a metal pitched roof with no soffit and lots of air-flow. I plan to recess the insulation 6" to allow airflow. There is a suggestion that I need a vapor barrier. If I use a vapor barrier, won’t water collect between the roof and the barrier. I was thinking if using strapping crosswise every 4” to act as a channel for water runoff. Any ideas?
The roof is already a vapor barrier, you won't need 2.
What are the roof insulation materials?
Is made from volatile polystyrene beads containing volatile liquid foaming agent, and a white solid having a fine closed-cell structure which is thermoformed in a mold after being preheated by heating