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Insulate 2×4 Walls with Foam it Green

  • Super Simple – If You Can Water Your Lawn, You Can Spray Foam it Green
  • Done Fast, Kit Sprays in Just an Hour
  • Almost Foolproof Solution to Seal & Insulate – Proven in Over 35,000 Homes, Over 1000 5 Star Reviews

Recommended: Use 2-3 inches Closed Cell Foam it Green for 2×4 Walls

Everything in plain sight can be sealed air tight.  Sealing and insulating a 2×4 wall has never been easier.  Foam it Green is the quickest and easiest way to meet code standards of sealing and insulating. Foam it Green sprays on fast and easy, and it expands to fill the space, creating a seamless air and moisture barrier.

With an R-7 per inch, only 3 inches gives you R-21. Fiberglass needs 6 inches to get to R-21 and it never provides an air or water seal.  In most locations, code now requires R-21 for wall insulation.

A seamless air barrier and high R-value:
Keeps your home warmer in the winter & cooler in the summer
Saves you a lot of money on energy bills
Stops uncomfortable drafts
Keeps out bugs and rodents
Improves the air quality in the room
Stops sound transfer
Stands up to flooding
Stops mold (there is an Anti-Microbial additive in Foam it Green)
And because spray foam never sags or settles, once it’s in place, it’s done!

You do not have to fill the entire cavity with spray foam insulation. You can leave empty space. You can do spray foam plus fiberglass or open cell if you wish, but if you use heat often in the winter, spray at least 2 inches of closed cell foam first.

3 Step Calculator:

Enter the Square Footage

Enter the Thickness of Foam You Need

R-value : 7 ?

Allow for Project Overages



Foam It Green 602 Kit: 0 $0.00
Foam It Green 202 Kit: 0 $0.00
Total # of Kits: 0 $0.00

Results based on theoretical yield.

Savings Calculator:
Enter your average monthly
heating and cooling expenses:
Use Foam It Green
and SAVE Up to:
1 month $57
1 year $682
5 years $3408
That means your payback period, the amount of time it will take for your insulation to pay for itself, is just... ? years.
Next Step:
Make a Money-Saving Dream Home with Foam it Green
  • Saves up to 40% off of energy bills
  • Stops drafts & deadens noise
  • Installs using basic instructions
  • Sprays on in Seconds, Done in Minutes
  • It really is this Easy - Proven in over 50,000 homes
Get Foam it Green >>

Get Your Kits >>

Very easy to use.” — Mark R

Stuff works great!!” — Marc B

Was quick and easy.” — Jeffrey D

How to Insulate 2x4 Walls

Wall of foam

rebuilding after a fire


Call 1-800-516-0949 for help in purchasing your kits.