building heat insulation material

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Product Description:

building heat insulation material  is an environment friendly product which has good sound absorption and insulation properties. The outer layer of PET provides excellent abrading and tears resistance. The middle layer of bubble shows strong ability in barrier of moisture and oxygen, reduction and insulation of sound. The middle layer also has the advantages like reflecting light and heat and stopping the penetration of ultraviolet radiation.  

building heat insulation Technical parameters:
Reflectivity96-97 %
temperature range -50 degrees C to 80 degrees C
SecurityNon-toxicity,non-corrosiveness
DurabilityIt will not degrade over time.
Mold and mildewNo growth
Linear shrinkageNone
Tensile strength (MD)13.43 MPa
Tensile strength (TD)14.58MPa
Water Vapour Transmission0.012  G/M2 KPA
Normal Weight240G/M2


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Q:ROOF INSULATION how to add more insulation on the outside!!!?
You could build a pitched roof on top of the flat roof.
Q:what effect does changing the pitch of a roof have on the insulation properties and durability of a roof?
Increasing the pitch will of course result in a larger dead air space therefore more insulation. The greater pitch is also less likely to leak but of course more costly to construct as more material is needed. Install vents at the peaks for more efficiency. Shingles will be less likely to be lifted by high winds with the steeper roof also.
Q:what is the best insulation to use blown or fiberglass over an already fiberglass insulated roof?
BLOWN BY ALL MEANS!!! SOME PLACES WILL EVEN LEND YOU A MACHINE TO BLOW IT WITH IF YOU BUY THE INSULATION FROM THEM.BAT TYPE INSULATION IS OLD SCHOOL!
Q:do i have to have insulation in my roof?
you should have insulation on the attic. ot should be right against the occupied ceilings. The attic cavity needs to be for the most part ventilated. That is a common building approach. Ive seen insulated sheets of plywood the roof shingles are nail to. You can call that roof insulator. You still better off with the common industry approach. Make sure you have an attic fan to level the attic temperature to the outside.
Q:Metal roof condensation issue low budget? Spray-on insulation?
hope this helps. With more air movement there will not be so much condensation. it is a matter of having an inlet for air or a fan and then an outlet for air. There are small extractor fans i have one for my bathroom, but unsure of the cost.
Q:How best to insulate interior of attic roof?
You can avoid the condensation problem by simply leaving a minimum 2'' gap between the roof and the insulation. You need to fix battens on to the rafters ( at least 2'' from the tiles ) and then fix blanket or rigid insulation tight between them. The battens will maintain the air space. You then need to fix a vapour barrier over the whole thing and finish with plasterboard. No small job to do it properly ! ps you need to check the condition of the roof before you start and fix any loose tiles etc Alternatively, turn the heating up and wear a thicker sweater.
Q:Metal Pan roofing insulation?
I think your problem is in the way you are asking the question. I for one do not know what you mean by a metal pan roof. I know all about steel roofs or corrugated roofs and a lot of other roofs but what is a metal pan?
Q:Can I install rigid insulation between roof decking and shingles on a sloped roof?
Lot of info missing to give you a good answer. Thickness of insulation. Slope of roof. But what it really comes down to is the building code in your area, contact local building inspector,
Q:How to insulate roof with syrofoam rectangles?
Visit your local Lowes, Ace, or Home Depot. Buy a caulking gun and a few tubes of industrial grade adhesive from their large selection. Read the label and choose an adhesive that mentions both plastic and metal. (If I were doing it, I would try some silicon on the Styrofoam and if it doesn't melt, use silicon, but there are dozens of different adhesives on the shelves.) Once you have the right adhesive, cut the foam to fit snugly between the roof members, and stick them up. To cover the Styrofoam, use any lightweight material you can find. I would try to find wall paper that simulates barn-board. (I have seen it somewhere.) Just apply a coat of wallpaper sizing to the Styrofoam first to give the wallpaper glue something to stick to. Most wallpapers already have the glue on the back; you just run it thru water to wet it. I use a large paint roller tray with a piece of stiff wire across it. Then I drop my cut to length strip of paper in the deep end of the tray and pull it thru under the wire. Have fun. Honey
Q:Why is the most insulation needed in ceilings or roofs?
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

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