ATOT Homeowners: does that attic foil/radiant barrier stuff actually work?

[charrison]

I added this stuff to my attic a couple of summers ago. The foil is inexpensive and easy to install. One roll cost me $150 and gave me about 70% coverage in my attic. Peak attic temps dropped to about 120F from >140F.

 

[Fausto]

You really think someone is interested in your trailer?

Of course. It is tastefully decorated in an array of NASCAR memorabilia and Bud Light signage. I even painted the blocks it sits on. As trailers go, it's pretty dope.

 

[yashuvp]

I did my attic 2 winters ago, mainly to reduce the attic temp due to the AC blower unit is up in the attic, so during 90+ days, instead of the AC is on all the time and takes forever to cool the 2nd floor, it is on less and cool down the 2nd floor a bit quicker. I will probably need to replace the AC with a bigger unit soon. I got this stuff on ebay for around $150 shipped, it probably dropped my attic summer temp by 20-40degrees.

What did you used to cool down your attic?

Thanks,