Ratings & Reviews for Reflectix R- 21 Attic Wall Unfaced Reflective Roll Insulation 400-sq ft ( 48-in W x 100-ft L ) Individual pack

nearly twice as thick as the best deal on Amazon

for just a few dollars more I have the best bang for the buck. better than Amazon in this case.

Great Insulation

I'm using this insulation for backing on my trailer before I put on the vinyl siding. Easy to use product and use beneath the furing strips. Will help much with heat and cold entering the trailer. Great product.

Perfect insulation

It is perfect to insulate with.Best part is no itchy.Its clean and extremely easy to install.

Reflectix Review

This product is perfect for the ceiling of my pole barn. Though I really think it will work best in the summer, it prevents condensation, in the winter, when I'm running a heater. It's easy to staple and lightweight.

FABULOUS, easy to use!

We use this for multiple purposes: insulation, underneath pet bedding, under/around outside chicken waterers, lining the outside dog houses...we've even slept on it instead of using a mattress pad when camping! EASY to use, flexible, super value and portable!

Easy To Install

Great stuff. I use it for home, RV, and shed. It helps a lot with hot/cold weather conditions. Easy to install. Will help with energy costs.

Great option for insulation

We used this to reinsulate the air ducts in our attic. Didn't even need to put on all of the necessary protective wear that was needed to remove the old fiberglass insulation. One caution, look for installation videos, This should be applied with spacer strips, not directly on the ducts. I didn't see them available at Lowes, so we just bought extra insulation to cut into strips.

Radiant Barrier Insulation for AZ

Have a metal building in hot Arizona. Putting this up on the inside of the building reduces sun heat 10-20 DegF depending on the day. Measurements were made with a no-contact (laser) thermometer. Greatly reduced the air conditioning requirement and made the shop more comfortable. Highly recommend for anyone in the same situation.

Insulation 1/8 inch

Installed insulation in a metal building I was very impressed with the R-value i achieved

Very active and was exactly what I needed

I bought 6 rolls to use in my attic to further increase my insulation and also bought two attic fans to get rid of the excess heat in the attic during the summer.

Works GREAT!

This stuff works great. You can feel a huge difference on a surface that has it, verses one that does not. We used it for a metal building. Easy to use, cuts easily. Used a tack hammer to install.