• Dow Roofing Insulation Building Heat Insulation Material System 1
  • Dow Roofing Insulation Building Heat Insulation Material System 2
  • Dow Roofing Insulation Building Heat Insulation Material System 3
  • Dow Roofing Insulation Building Heat Insulation Material System 4
Dow Roofing Insulation Building Heat Insulation Material

Dow Roofing Insulation Building Heat Insulation Material

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Shanghai
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Supply Capability:
12000 m²/month

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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


Q: I'm thinking of converting my brick walled corrugated iron shed into a changing room for winter hot tub use. I was advised by a friend that the first thing i should do is insulate the roof using glass fibre insulation (the yellow fluffy stuff in the loft) and a simple Plywood ceiling but im not sure how i would stick it to the existing roof (dimensions 170cm x 147cm). So..... how should i insulate the roof of my future changing room????
If the roof has joists, which I imagine it would, you would put the bats of insulation into those spaces... these can then be stapled into place or if that isn't possible, you can run a wire between the joists to hold the bats in place. If using faced insulation be sure to put the paper side towards the warm area (inside) to prevent condensation.
Q: we replacing our torched down rubber roof and my contractor said we need to install a 1 inch rigid insulation..is the insulation needed?
You would be foolish not to add the rigid foam under the new rubber roof. It gives you a new surface for an expensive roof. Definitely follow the contractors advice on this one.
Q: I am really confused about this science stuff! Sustainability is terrible xP
i'm designing a house it quite is a retangle on the 1st floor with an L shape on the 2d and installation into that L i choose to have a greenhouse related. My plan is to apply 2x10 or 2x12s for my floor joist that way i can insulate the ceiling of the room it is under that and the two partitions that are related to the greenhouse. no longer a lot to learn any warmth from it,yet to have plant life. If i choose to get any image voltaic benefit illl in simple terms open the door to the domicile
Q: Would it be worth forwarding the offer to the client? Is the difference that substantial?
You don't want that. If he offers 3.5 instead of the required 3, that is a different story. Otherwise he should give you more material thickness to provide an equivalent R of 3. Yes, the difference can be substantial and I wouldn't forward it to the client. The smaller the R value of the entire roof sandwich the larger the difference it makes. Like the change from 5 mpg to 4 mpg is a 25% worsening in fuel economy, but a change from 100 mpg to 99 mpg is 1%. It will mess up the heating/cooling of the building and the mechanical systems might be inadequate. They could save money on the roof and complain how the building is too hot/too cold or the mechanical systems never shut off and their energy bills are too high.
Q: should thermal insulation ever be applied directly to the underside of a roof top?
Should it be done, No. Thermal Insulation is put direftly above the ceiling. Not on the actually roof top. The reason being, that even though both methods will trap in heat, With the insulation on the arches of the roof, it still allowing heat into the Attic, Or roof space. This means that the top of the roof will infact be the warmest part of the house, and lot of heat will be lost. from the main rooms of the house.
Q: if you had snow and all the snow is off your roof and the house nex store has snow do we need insulation?
You hit the nail on the head and is a direct indication that you need more insulation. As a matter of fact, many carpentry companies send the sales force out in the winter (When new home building is slower) to look for houses with no to little snow on their roofs compared to their neighbors. This is an indication that the roof is allowing to much heat to escape which then melts the snow on the roof. But take one other thing into account. Was the wind blowing? If the wind is blowing, it could blow snow off your roof and not your neighbor due to his location, obstructions(such as tree's, other buildings) or design of his roof. lastly, depending on the orientation of your home, more sunlight can hit your roof than your neighbors allowing more snow to melt. If your roof is darker compared to your neighbor, it can increase your snow melt compared to your neighbor. If the snow is recent and your neighbor has snow on the roof and you don't, chances are that you need insulation as $$$ is escaping out of your ceiling.
Q: roof was replaced eight years ago soon after there were leaks in the roof caused insulation toget wet then dry now the insulation is packed hard and has started to turn into power who would be responsible to replace the insulation.
House Owner, Land Lord. If you are the house owner, contact the people who did the work on your roof, find out what your warranty is.
Q: So I'm renovating an old farmhouse with a metal roof and there is no insulation in the attic. I was up in the attic checking for leaks since we just got some freezing rain and it is currently melting I thought now was the perfect time to check. I found no leaks but I did notice the roof was sweating with noticeable beads of water in many places and many of the 2x4's that act as the frame were damp, although none were rotted (I found that odd as the house is approx. 140 years old and those are the original 2x4's. I could tell that the attic does have vents so I guess it dries out before rotting or mold occurs.. but makes me wonder if I put down some roll-in faced R-30 Owens Corning Insulation and then add a plywood floor over top if everything will be fine.. or not so fine..
You need to make a determination as you if you want your attic to be conditioned or unconditioned. If you want it unconditioned, you need to make sure you have venting up high and soffit vents to allow air in. You would then insulate the floor with batts or blown cellulose or blown fiberglass. If you want the attic to be conditioned space, you would insulate the roof itself. For this I would recommend contacting a spray foam company and get their opinion. Spray foam is great for insulating roofs but it has to be done right.
Q: I already have fiberglass in the attic, but would like to add more.
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: If I insulate my roof, should I put in those plastic vents that go between the studs for air flow? I would like to use it for a work shop and probibly have some kind of heat source. i live in Northern Alberta.....
if the garage is heated do it all the cost of the insulation vs the cost of heat today is outrageous doing it now will save a ton later

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