DIY Spray Foam Kits and Supplies

Professional Spray Foam Insulation Kits

Spray Foam kits are perfect for the average Contractor or Spray Foam Contractor. Spray Foam is the most advanced type of insulation to date that can be installed by just about everyone. Our Closed Cell spray foam kits and supplies can be used in a number of different applications from new construction, existing homes, basements, and pole barns to concrete, tin, wood and many other surfaces.

Spray Foam Insulation

Spray foam insulation can be divided into three groups, single component can foam, two component low pressure, and two component high pressure. Single component can foam is best used for gaps, cracks, and for around windows and doors where an air tight seal is needed. There is high expansion foam for gaps and cracks, low expansion foam used for around windows and doors so it does not affect the opening and closing hardware, and fire rated foam for areas that need a fire rated barrier. Two component low pressure foam – this is recommended for spray foam & non-spray foam contractors. These professional spray foam kits come in various sizes according to the volume needed for your application. Christian Fabrication stocks 1.75lb closed cell kits- Fomo II-205(205 board ft) and II-605(605 board ft) Quick Cure spray foam kits. Each kit offers ease of use and dependability for both homeowners and contractors. We also offer the full line of Fomo kits from .5lb to 2lb and even 3lb spray foam kits and pour in place. Two component high pressure foam – High pressure systems are recommended for spray foam contractors only. View our page on Spray Foam Rigs for more information on high pressure systems.


What is a board foot? A board foot is the unit of measure most commonly used in spray foam to calculate the coverage of spray foam and how much is needed to complete a specific job. Very similar to a square foot, a board foot is one square foot at one inch thick, or 1 foot x 1 foot x 1 inch thickness of foam. For example, let’s say you need to calculate the amount of spray foam needed to insulate a 10’x10’ wall at a thickness of 3 inches. You would multiply the length and the width of the wall to get your total square footage (10x10=100) then you would multiply that number by the thickness of the foam (100x3=300). The total amount of spray foam needed for this job would be 300 board feet.


Closed Cell vs. Open Cell – There are two main categories when talking about spray foam insulation, Closed Cell foam (a.k.a. 2 pound, or medium density), and Open Cell foam (a.k.a. ½ pound, or low density). While both are installed in a similar manner with very similar chemical properties there are some major differences that set these two insulations apart from one another.

Open Cell spray foam is a soft spongy foam with a density of about 0.5 pounds per cubic foot. The typical R-value for open cell is around 3.5-4.5 per inch. What sets open-cell a step above traditional insulations like fiberglass and cellulose is that the cell structure makes it air-impermeable once a certain thickness is reached. Because of the air barrier qualities of open-cell, it works great in reducing the amount of leakage throughout the building thus greatly reducing energy costs. It is moisture-permeable and for that reason may require a vapor barrier in certain situations.

Closed-Cell spray foam is a more rigid foam with a density of about 1.8-2.2 pound per cubic foot. Closed-Cell foam works in a way very similar to high efficiency windows. Like panes in a window, Closed-Cell foam has tiny “closed” cells throughout the structure. Those cells are filled with a gas called a blowing agent and just like the gas between window panes it has a lower thermal conductivity (rate of heat transfer) than air which increases the R-value. R-values can range from 6.0-7.2 per inch which makes it great for insulating areas where limited space is available. Like Open-Cell, Closed-Cell spray foam is air-impermeable once a certain thickness is reached which qualifies it as an air-barrier material. Unlike Open-Cell, Closed-Cell spray foam is resistant to moisture and water which means it can be used almost anywhere including below grade, building exteriors, high moisture areas and has been approved by FEMA as a flood-resistant material. Another characteristic that sets Closed-Cell foam apart from the rest is its structural strength which can add up to 200% racking strength to your structure.


Is Spray Foam Fire Proof? While you may hear of some spray foams being fire rated, they are not actually fire proof. Spray foam can ignite if exposed to excess heat or flame. Building codes require that all insulation (including spray foam) must be covered by a thermal barrier (1/2” Gypsum board or approved coating) in all occupied spaces. Limited access areas like crawl spaces and attics (in certain situations) can be covered with an ignition barrier. A thermal barrier is a 15-minute protection from ignition while an ignition barrier is just a 5-minute protection.


Fomo Spray Foam Characteristics


Open Cell Foam

Closed Cell Foam

Typical Handi-Foam® Aged R-Value at 1"



Superior Compression Strength


Liquid Water Resistance


Air Barrier



Sound Absorption

x (superior)


Vapor Retarder



Soft, spongy


Increases Structural Strength


Interior Use



Exterior Use


Resistance to Mold



Commonly Called

Low Density,
1/2 pound foam

Medium Density,
2 pound foam