Skip to main content

Quickly and Easily Insulate an Existing Wall

We live in a 1930’s Tudor, with no insulation in the walls. As part of our master bedroom/bathroom upgrade we used Foam It Green Slow Rise. These rooms are now the warmest/quietest rooms in the house. – Simon M., Washington DC

Use Slow Rise Foam it Green for Retro-filling Existing Walls

Want to insulate a closed wall that’s empty inside? Got plaster walls? Got drafts? Use our Slow Rise formula.

It’s the same great formula as our regular fast rise- E84 Class 1 Fire Retardant and Anti-Microbial. But, it rises slowly so you can pump it into the wall. Foam it Green is the ONLY BRAND who’s slow rise is fire retardant.

Make your home warmer in the winter and cooler in the summer
Lower your energy bills
Stop uncomfortable drafts without having to take down your wall
Stop sound transfer
Stop bugs and rodents from nesting in your walls
And because it never sags nor settles, once it’s in place, it’s done!

By using Slow Rise Foam it Green, you create a seamless air barrier behind your existing walls and massively increase your wall’s R-value. You’re sealing and insulating in one step.

Watch this video to see the steps on how it’s done. You can buy just the Slow Rise foam kit from us, or you can also buy the tubing you see in the video to come with your kit.

If you want to insulate an enclosed wall that has fiberglass inside it, use our DropFill product.

Get Your Kits >>

How to Use Slow Rise in Existing Walls

Slow Rise Foam it Green Spray Foam Project

Step 1 Decide the type of wall

Wall Type

Step 2 Is there fiberglass batt currently in the wall that you'd like to remain

Step 3 Measure The Square Footage

WallsX=160add another wall

Total Square Footage:160

Step 4 Allow for Project Overages



Based on theoretical yield, the best combination of kits to get is:
FOAM IT 602 SLOW RISE Class 1 Polyurethane Spray Foam Kit:0$0.00
FOAM IT 202 SLOW RISE Class 1 Polyurethane Spray Foam Kit:0$0.00
Total # of Kits:0$0.00
If you need 6 or more 602s, get special bulk pricing here or call us at 800-516-0949.

Additional Slow Rise Kit Details:

The Easy to Use Spray Foam Kit

  • Spray foam insulation that’s convenient and easy to use.
  • R-Value of 7 in 1 inch – 97% Closed Cell Foam. The best wall insulation.
  • Class I E-84 Fire-Retardant – meets building code spec.
  • 100% Free of CFCs, VOCs, Penta-BDEs, & Urea Formaldehyde

Spray foam kits are quicker and easier to use plus you get a seamless air barrier and high r-value in just 1 inch. Choose Foam It Green spray foam insulation kits and don’t settle for less than you deserve.

If you’d like to start saving money and time today, buy Foam it Green Spray Foam Insulation>> now or call us at 800-516-0949. In 60 seconds you’ll be on your way to paying lots less when you use Foam it Green.