Ratings & Reviews for Kingspan Insulation R- 5 , 1-in x 4-ft x 8-ft Unfaced Foam Board Insulation
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation board for its ease of cutting, versatility, and durability. The foam cuts cleanly with standard tools like exacto blades and jigsaws, making it accessible for all skill levels. Reviewers highlight successful use across basement insulation, stage props, crafts, and specialty applications. Many describe it as sturdy and dense, maintaining thermal performance without adding bulk. While a few mention price increases and isolated quality concerns, the vast majority consider it reliable and well-suited for both insulation and creative projects.
Customer review summary generated by AI, including incentivized reviews.Used to make a backer board for cutting sheet good
Would RecommendI bought this to use as a backer board for cutting sheet goods with my track and circular saws. It's the right thickness for durability without taking up too much space -- I cut into fourths and used metal tape for connecting the sections in an accordion fold. I would have given it a 5-star but the back had an unusual pattern (maybe from the way the foam was extruded?) as I would have preferred to make that my cutting side but it was a bit odd.
Verified Purchaser
So easy to use.
This is great insulation, I love it. Cuts easy with a box cutter and straight edge, like a 4-foot t square.
Verified Purchaser
Easy to install, great product for insulation
Would RecommendEasy to install, great coverage
Verified Purchaser
Good insulation panels
Would RecommendProduct is very durable and dense. Insulates well.
Verified Purchaser
Foam board
Would RecommendWorked as craft board.
Verified Purchaser