Ratings & Reviews for Johns Manville R- 13 Wall Unfaced Fiberglass Batt Insulation 106.56-sq ft ( 15-in W x 93-in L)
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this insulation for exceptional thermal performance, ease of installation, and excellent quality. Most highlight how cleanly it cuts, fits standard stud spacing, and installs with minimal effort, with the lightweight 48-inch sections enabling quick completion even on large projects. Reviewers consistently report noticeable improvements in temperature control and reduced heating and cooling costs. The natural color, lack of fiber shedding, and durable construction earn widespread recognition as good value. A few mention minor issues like inconsistent thickness or itchy handling, but these isolated concerns barely diminish overall strong satisfaction.
Customer review summary generated by AI, including incentivized reviews.Great insulation
This insulation was easy to install and it keeps the air in my home much more comfortable in the same 2x4 walls than the R13.
From R- 15 Wall Kraft faced Fiberglass Batt Insulation 67.81-sq ft ( 15-in W x 93-in L) Verified Purchaser
works great!
great product
From R- 19 Wall Unfaced Fiberglass Batt Insulation 87.18-sq ft ( 15-in W x 93-in L) Verified Purchaser
It's insulation
Works as advertised.
From R- 19 Wall Unfaced Fiberglass Batt Insulation 87.18-sq ft ( 15-in W x 93-in L) Verified Purchaser
Manville R-15
Would RecommendQuality product, and any little bit I can get above the standard R-13 will help.
From R- 15 Wall Kraft faced Fiberglass Batt Insulation 103.97-sq ft ( 23-in W x 93-in L) Verified Purchaser
Works like you'd expect and not itchy!
Would RecommendWorks like you'd expect. Unlike the pink stuff, it doesn't make me itchy.
From R- 15 Wall Kraft faced Fiberglass Batt Insulation 67.81-sq ft ( 15-in W x 93-in L) Verified Purchaser
I purchased insolation for a room that needed better climate control. it has greatly improved since I installed this product.
From R- 30 Attic Kraft faced Fiberglass Batt Insulation 58.66-sq ft ( 16-in W x 48-in L) Verified Purchaser
Excellent
Would RecommendInsulated my garage and it made all the difference!
From R- 38 Attic Kraft faced Fiberglass Batt Insulation 42.66-sq ft ( 16-in W x 48-in L) Verified Purchaser
Perfect for a DIYer. Not the pink fiberglass.
Perfect to easily insulate our attic. Installaton is easy, This was relatively easy to rip to size. Dimensional was perfect, Thermal resistance is great. Not moisture resistance or sound absorbing. This is for the attic area not walls so that is by design. Moisture and sound are not an attic requirement and could do more harm than good. I will purchase a few of these at a time (I can fit 3 into my vechile) until I get done. I installed in tshirt and shorts, not the pink fiberglass stuff.
From R- 38 Attic Unfaced Fiberglass Batt Insulation 64-sq ft ( 24-in W x 48-in L) Verified Purchaser
Easy to install
Would RecommendThis insulation was easy to handle and install, and the kraft facing made it straightforward to position where I needed it. It fit well between the framing and feels like a solid, good-quality product. I’m happy with how the project turned out and would use it again for another insulation job.
From R- 30 Attic Kraft faced Fiberglass Batt Insulation 58.66-sq ft ( 16-in W x 48-in L) Verified Purchaser
Steve
Would RecommendI bought this product and it did the job and even had some left over to take back. it was a very good product.
From R- 30 Attic Kraft faced Fiberglass Batt Insulation 58.66-sq ft ( 16-in W x 48-in L) Verified Purchaser