Chew On Aluminum Foil

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aluminum foil with LDPE film heat sealing for bubble foil facing production

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FAQ

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?

that is being done now and is called solar heat where dark panels are installed on a roof and the collected heat is drawn into the home via a liquid medium. The alternative of which you speak: between the insullation and roof ,,is just not practical to build. nor would it provide a greater heat than the aforementioned.

I have an apartment building that has mold in it. I'm trying to do everything I can to increase the airflow. Sure, the tenants might have to spend a mint on heat, but if it improved the air quality, maybe it would be a good idea.

You can remove it, but why not replace it with rolled insulation? I'm sure you're local State Board of Health would disaprove of not having your tenant's homes properly insulated. You could get into a lot of legal trouble if you do not keep you apartment building properly maintained.

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?

I agree with the soundness of every part of your plan EXCEPT not removing the original shingle roof. The shingle roof is already at the end of its usable life. There’s no benefit to covering up old problems, and they will most likely affect the durability of the new roof. Plus, removing the old roof gives you the opportunity to inspect and repair any issues with the roofing deck. Your new insulation and metal roof will attach better and perform better by removing the old shingle roof.

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

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

Have a patio with metal roof, gets very hot during summer. Will Great Stuff insulate and stick to hot roof during summer? Thanks

I don't think Great Stuff foam insulation is meant to be applied in the manner in which you need. It is used to fill gaps and cracks, not be sprayed out in thin coats. whenever I've used it in the past, I found out it did not like to be spread out, or "worked".

Foam and the new building technolodgy's are coming to New Orleans. The rebuilding is causing New Orleans to be the "Greenest City in America". Energy Efficiency and the proper buiilding techniques tak hold.

First, "green" building is not technically defined as far as the construction industry is concerned. i.e. anyone can call their products "green" until the parameters are set up to strickly define what is "green" and what is not. To date, it's been more of a marketing strategy than anything. (Unless this has changed in recent months) I'm glad to hear New Orleans is taking the right path in rebuilding the place! Hope to get back down there soon.

were can i buy material to insulate pans and instructions to install it? I have seen many roofs with this done ,but , the lowe,s and home depots don't have .

you do now not desire insulation for this application. in case you have now not offered the metallic yet i might advise searching for a status seam roof equipment that the panel would not are available touch with the substrate and would not use uncovered fasteners. If contained sooner or later you probably did be certain to surround the porch and upload warmth you ought to insulate the ceiling and depart an air area below the decking that ought to be ventilated from the eave to the ridge. a chilly roof assembly with proper air flow will dramatically cut back the flexibility of the metallic panels sweating.

we replacing our torched down rubber roof and my contractor said we need to install a 1 inch rigid insulation..is the insulation needed?

on the outside, under the rubber? That's crazy. Don't go for it.