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.Good value
Nice sturdy lightweight insulation board, fair price.
Verified Purchaser
Light weight and easily mounted
Would RecommendMakes a great quilting wall!
Verified Purchaser
Great Service
Would RecommendAlways quick and easy!
Verified Purchaser
works great
Would RecommendUsed to insulate garage doors. Cuts easy little mess. And bubble foil over them added aesthetic. Low sound and reduced heat in my garage. would consider for some attic work.
Verified Purchaser
Foam
Would RecommendLightweight and easy to cut Provides r value that I needed
Verified Purchaser
Foam Board Installation
easy to glue against a concrete wall. Easy to cut with a cutting knife
Verified Purchaser
Good luck getting any help
Would RecommendService at Lowe’s is really very poor, clerk was very little help and complained the entire time
Verified Purchaser
Works great
Would RecommendDid the job
Verified Purchaser
Sturdy and cuts nice
Would RecommendI am making stage pieces for a play of Peter Pan. These boards are so nice. It is sturdy and cuts nice with a jigsaw or foam cutter. I used acrylic paint and was amazed at how well i could paint on them. Really like this stuff
Verified Purchaser
Its foam
Would RecommendIt's one inch XPS. Cuts good, glues down good. Perfect for thermal break against concrete block, just stud out a wall in front of it and use mineral wool.batts, bam... R20 wall
Verified Purchaser
Make sure you have the correct tools for the job.
Would RecommendThe product worked great and I completed the job. The only problem I had was operater error. In other words ME.
Verified Purchaser
Worked for me
Would RecommendSolved my problem
Verified Purchaser
More Than Just Insulation
I picked up this 1-inch foam board to use as a lightweight tabletop for breaking down lumber, and it has worked great. It provides a stable surface without adding too much weight, making it easy to move around. I plan to use it for similar projects beyond just insulation. The only concern is durability—over time, repeated cuts may wear it down, but for the price, it’s a solid choice. Definitely a handy material to have in the shop!
Verified Purchaser
Works but costs more than ever.
Would RecommendDecent but a little expensive. It did its job.
Verified Purchaser
Great insulation product
Would RecommendVery well made and durable
Verified Purchaser
Garage Door Insulation
Would RecommendRight stuff
Verified Purchaser
You better get a REALLY sharp blade!
Would RecommendRigid and level but beware the grain runs the long dimension making a mess of cuts across the grain. I had to add 1/8" to my cuts and finish with a block sander.
Verified Purchaser