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R- 1.5-in x 4-ft x 8-ft Expanded polystyrene

Ratings & Reviews for R- 1.5-in x 4-ft x 8-ft Expanded polystyrene

4.6
779
Review
 4.6 out of 5
779 Reviews


93% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The foam board insulation is described as easy to work with and effective at improving temperature regulation and reducing energy costs. Customers found it suitable for various applications like insulating garage doors, walls, and windows. While some minor issues like messiness when cutting the boards were noted, the product is generally considered a reliable and versatile option for DIY and home improvement projects.

Customer review summary generated by AI, including incentivized reviews.
779 Customer Reviews

Would Recommend

Ordering online is convenient and saves times. As with many vendors, online inventory does not always match actual in store inventory. I ordered 4 rolls of "unfaced" insulation. When I went to pick it up, I was given 2 rolls of faced, and 2 rolls of unfaced, simply because the inventory was wrong. Not a big problem, but it could have been. I would not have been happy after driving over an hour to get the items.

April 30, 2026
From R- 1-in x 4-ft x 8-ft Expanded polystyrene Verified Purchaser
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Lightweight and easy to use

Would Recommend

The product is lightweight and good insulation. Can be glued or taped in position. Easy to cut.

April 2, 2026
Verified Purchaser
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My Lowe's and my expanded polystreet product.

Would Recommend

I like that it was delivered and I did not have to haul it. I like it because it is a great insulation and easy to install. It is easy because it is lightweight. I really do love My Lowe's.

March 28, 2026
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Used as secondary insulation

For the price this is a good product. If you want an easy to install, secondary insulation with a foil face then this is for you. The R-value is good for what it is and I like how it won’t mold. I probably wouldn’t recommend as your only form of insulation but for an exterior or interior sheathing to bump up your R value I highly recommend it. Also, while i’m not an engineer or architect, so take this with a grain of salt, it seems to make the building slightly more rigid before you install OSB ...

March 25, 2026
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Fair value

Would Recommend

They are okay but do have a lot of beads that fall off especially when cut

March 25, 2026
From R- 0.75-in x 4-ft x 8-ft Expanded polystyrene Verified Purchaser
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Sturdy Polyshield

Would Recommend

The polyshield was sturdy as I hung it on the inside of my garage door.

February 17, 2026
From R- 1-in x 4-ft x 8-ft Expanded polystyrene Verified Purchaser
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Do it or loose heat.

Great insulation and is worth the money and time.

January 23, 2026
From R- 1-in x 4-ft x 8-ft Expanded polystyrene Verified Purchaser
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