HouseablesRadiant Barrier, Radiant Barrier Insulation Roll, Attic Insulation, 1000 Sq Ft, 250'x4', House Wrap, Reflective Foil, Attic Foil, Double Reflective Heat Shield, Perforated Aluminum, Thermal

Tough material, like tyvec house wrap coated with aluminum sheet on both sides. I messed up and stapled a couple of pieces wrong, but when ripped them off to remove them and reattach it left only a small tear the size of the staple and didn't rip at all. Works great as an insulation dam for the first row, don't waste your money on the cheap foam insulation dams, you can just cut these to 28" wide x 4' pieces for your first row and tuck them between the rafters and staple them to the top cap of your wall leaving an air space between the radiant barrier and roof decking. Then when you blow in insulation you can push it right against the radient barrier without affecting your ventilation. Could tell the difference in heat as I was putting it up, attic is alot cooler now. Hard to tell how much it contributed to my electric bill because I also airsealed gaps and added insulation, but AC is running 2 hours less a day and it's not even I'm the hot summer months yet.

Update 1 Oct 2024: Discovered an issue potential buyers should be aware of; roof leaks. I was waiting for temps to cool before resuming my attic work and Hurricane Helene’s outer rain bands reached us making for much cooler, wetter weather. I noticed some black spots on the underside of the roof decking in areas I had not yet covered. Each black spot was a wet area where a nail holding a shingle had worked loose allowing rain water to seep in around the nail hole. Not the fault of the product, but I never thought about the possibility of a roof leak. I had to remove quite a few staples to lower the material enough to get an inspection camera in to check. Hope this helps!This barrier product has exceeded my expectations. This is a true perforated, laminated aluminum faced and backed product with a very, very strong scrim. This is not the potato chip bag metalized Mylar film stuff that tears when you look at it. No comparison. This Houseables branded product is imported from you know where but put your concerns to rest; this is top shelf material.I am in the middle of installing 2K linear feet of the barrier and stopped to post my findings.1. Easy to handle as it is a heavy gauge material that doesn’t rip. About as thick as 4 sheets of heavy duty grilling type Reynolds’s Wrap.2. Cuts super easy with scissors. You can use a box cutter, but I found scissors much easier.3. Easily tacked up with 1/4” or 3/8” staples. The foil has some rigidity and that’s a good thing.4. Heavy weight. A full box is more than 31 pounds. You will want to pre measure pieces in a comfortable place, roll em up and take ‘em to the attic to install.I noticed a significant reduction in the attic as I was putting the stuff up. Outside temp had been 70-72 F but cloudy. Attic temps were 80-85 F. Then the sun came out and attic temps shot up to 105 F in less than 30 minutes. As I was lifting up the 1st sheet, I could feel the heat reduction on my face. It was significant..When I finish the job, I’ll update but for now, I’m happy as a hog in the mud.

Let me start out by saying this stuff is absolutely amazing! I DID NOT think we would get such drastic results. We are temporarily occupying a 3,750 square foot warehouse building for a project office. This building has a very high arched ceiling with open rafters and exposed 2x12 roof joists. The asphalt shingles are black. No insulation up there at all, the underside of the roof plywood is exposed. Prior to installing this radiant barrier, we were running two 8-ton Air Conditioning units nonstop. From noon on, we were getting temperatures of 130-140 degrees up in the rafters, with the huge air conditioners running as high as they could. They surface of my desk was 100 degrees. Does that paint a picture for our situation before finding this product?I ordered this radiant barrier and we began stapling it to the underside of the roof joists. This product is extremely easy to work with and very durable. I kid you not, you could feel a very noticeable difference standing underneath an area with the barrier and and area without, it is insane. As we progressed, the building temp started to drop and drop. Right now, we have 85% of the roof area covered in radiant barrier and the highest part of our rafters has not seen temperatures above 80 degrees. That is a 50-60 degree difference! We only need one air conditioner now and it only runs sporadically as it should. Let me remind you this is without insulation between the joists. This product is amazing and I'd recommend it for everyone. I will line the attic of my house this weekend and use it under the roof of every single dwelling I ever occupy in the future. I am very surprised that local building codes don't require it already. I give it 250 thumbs up.

Stuff is thick, like heavy duty aluminum foil doubled or tripled over. Not easy to tear so if you do staple it where you didn’t mean, just pull on it to try again. Of course working with something that thick has its challenges as well. In tight spaces, it can be unwieldy to work with. I used a miter saw to cut it in half while still rolled, nice straight cut all through it and I don’t have to worry about a wavy cut doing it by hand.Overall it’s installed and 2 months later i’m still looking for a difference in my bill. Can’t really tell. However, when in the attic, you can feel the heat placing your hand near it, moving a foot or so away, the heat dissipates. Going to a none applied section of the roof you can tell the heat penetrates straight through, so I would say it’s doing something.The idea behind our purchase was to keep the a/c ducting in the attic cooler, therefore making the a/c not have to work so hard cooling hot pipes before reaching the dwelling areas of the house.With proper technique this stuff is easy to apply, after crawling around on my back long enough, trial and error, a short crash course from a pro and an immeasurable amount of sweat, it’s too bad I only needed to do my attic.