DIY Spray Foam Insulation 

Why DIY Spray Foam Insulation?  

Have you felt the drafts of cold air coming from your basement during the fall and winter? If you have felt the drafts of cold air coming from your basement, you are not alone. Many people live in poorly insulated home, but aren’t sure what to do besides turn up the heat. That doesn’t solve the problem, but it does drive up heating costs. You may have heard of spray foam insulation, but never considered insulating your home. You might have figured a contractor would be cost prohibitive. Thankfully, there are materials and equipment available to complete DIY Spray Foam Insulation projects. DIY insulation could save you money in the long run and keep you more comfortable in your home.

At SprayEZ we know the value of hard work. We know you take pride in maintaining your home and completing DIY projects with care. Similarly, we take pride in making all of the spray foam products on site. The chemicals are mixed on site to ensure excellent quality. All of our spray guns and spray foam tech machines are put together on site using the best parts in the industry. We guarantee top quality DIY foam and spray guns.

Spray Foam Insulation Kits

How Much Spray Foam Do You Need?

Sprayez offers DIY spray foam insulation kits with either open or closed cell foam. All kits come with a Fastkick Applicator Spray Gun, one of the best application tools in the industry. The kits are stocked with varying quantities of spray foam. The smallest DIY spray foam insulation kit comes with 10 cases of ½ pound insulation, open cell foam bottles. Half-pound insulation foam weighs between .4 and .6 pound per foot cubed when it is fully expanded and hardened, or cured, on a surface. The half pound foam resists heat at value of about 3.5 per inch.

When deciding how much spray foam to buy you have to measure the board feet of the area of the wall or floor you are insulating. A board foot is one square foot of cured (hardened and expanded) foam, measuring 12 inches in width and 12 inches in length, multiplied by the thickness of the spray foam. To calculate board feet, use the following steps:

1)      Measure the width and height of the area to foam to obtain the square feet.

2)      Determine how much heat resistance you need. In colder climates, you need a higher heat resistance value, or R-value. In cold climates, an R-value of 25 is preferred and in warmer climates an R-value of 11 is preferred. To achieve an R-value of 11, one would need to apply a little more than three inches of .5 pound spray foam.

3)      Multiply the square footage of the area to be insulated by the thickness necessary for the optimal R-value.

4)      Example – to cover an area 20 feet by 30 feet = 500 ft2 x 3 inch foam thickness = 1,500 board feet of foam

SprayEz’s smallest DIY spray foam kit includes 3,400 board feet of foam. In this DIY foam kit, 10 cases offer 3,400 board feet of cured open cell foam. The half pound, open cell foam is low-density and semi-rigid. It is best used to insulate wall, floors, attics, ceilings, and air ducts.

The next spray foam insulation kit offered by SprayEz includes 20 cases of .5 pound, open cell foam. That is double the amount of the first kit. In total, the cured polyurethane measures about 6,800 board feet. The next kit comes with 40 cases of .5 pound foam, measuring 13,600 board feet.

SprayEz’s offers three DIY spray foam insulation kits with 1.5 pound closed cell foam. Closed cell foam has a higher R-value than open cell foam. The DIY closed cell spray foam has an R value of 5.7.  When it is cured it forms a rigid structure. The 10 case kit yields about 1900 board feet, measuring one square foot by one inch thick. The 20 case, 1.5 closed cell foam spray kit yields about 3,800 board feet. The 40 case, 1.5 pound closed cell foam spray kits yields approximately 7,600 board feet.

For those looking for a DIY spray foam with a higher R-value, SprayEz offers 2 pound closed cell foam. The 2 pound foam has an R value of 6.8. The 2 pound DIY spray foam kits are available in 10, 20, or 40 cases, measuring 1,500 board feet, 3,000 board feet, and 6,000 board feet respectively.

Looking for DIY roofing foam? SprayEz’s got you covered! We offer top quality, 3 pound, high density, closed cell roofing foam. The roofing foam kits come in 10, 20 or 40 case packages.

In summary, SprayEz’s DIY spray foam insulation kits are:

  • .5 pound, open cell foam; 10 cases; 3,400 board feet; FastKick Applicator Spray Gun
  • .5 pound, open cell foam; 20 cases; 6,800 board feet; FastKick Applicator
  • .5 pound, open cell foam; 40 cases; 13,600 board feet; FastKick Applicator
  • 1.5 pound, closed cell foam; 10 cases; 1,900 board feet; FastKick Applicator
  • 1.5 pound, closed cell foam; 20 cases; 3,800 board feet; FastKick Applicator
  • 1.5 pound, closed cell foam; 40 cases; 7,600 board feet; FastKick Applicator
  • 2.0 pound, closed cell foam; 10 cases; 1,500 board feet; FastKick Applicator
  • 2.0 pound, closed cell foam; 20 cases; 3,000 board feet; FastKick Applicator
  • 2.0 pound, closed cell foam; 40 cases; 6,000 board feet; FastKick Applicator

SprayEz’s DIY roofing foam insulation kits are:

  • 3.0 pound, closed cell foam; 10 cases; FastKick Applicator Spray Gun
  • 3.0 pound, closed cell foam; 20 cases; FastKick Applicator
  • 3.0 pound, closed cell foam; 40 cases; FastKick Applicator

Types of DIY Insulation Projects

When deciding whether to use open cell or closed cell spray foam for your DIY insulation project one must first understand the features of open and closed cell foam. Open cell foam is best suited for indoor DIY foam insulation projects. It acts as an effective air barrier and as an effective sound dampener. Closed cell foam is an effective thermal, air, vapor and moisture barrier and can be used indoors and outdoors. Due to its rigid structure it adds structural strength to homes and buildings. Closed cell foam is effective in both cold and warm climates. It also protects again mold and mildew because it does not hold vapor and water and it does not provide food particles for mold or bacteria. Amazingly, closed cell foam is resistant to flood damage. It is approved by FEMA, the Federal Emergency Management Agency, to resistant flood water and damage.

There are probably many areas and structures that need to be insulated in your home or building in order to reduce cold air from flowing in and warm air from leaving during the winter. Warm air could escape from gaps, plumbing fixtures, electrical outlets, and vents. When deciding where to start insulating your home, start with the project that will have to most impact on preventing the warm air from escaping during the winter.

Closed cell, DIY spray foam kits can be used for spray polyurethane foam can be used to insulate exterior wall, insulate a roof, insulate wall cavities, attics, crawl spaces and basements. Also acts as an air barrier and meets air barrier code requirements. As it expands it fills in cracks and crevices to stop air and water infiltration. Roofs, walls foundations and floor provides structureal strength and moisture barrier. 

Sample projects:

Cavity walls insulation (might use closed cell foam with about 3 inches of thickness with 1.5 pound, but this will vary depending on your home’s construction and the climate)

  • Roof on the attic side (use open cell here)
  • Exterior roof (closed cell foam)
  • Repairing foam on the exterior of the rood
  • Interior wall for sound reduction
  • Ceilings
  • Floor for air sealing
  • Floor for air sealing and insulating
  • Crawl spaces for air sealing
  • Crawl space for insulating
  • Vaulted ceilings
  • Cathedral ceilings
  • Hard to reach spots
  • Air conditioning Duct leakage

Suggested Foam Thickness for Various DIY Spray Foam Projects

Different areas of your home require varying levels of spray foam thickness. The thickness of the open cell or closed cell spray foam determines how much heat resistance the foam provides. The thicker the foam, the more heat resistance provided. The thickness of the insulation will depend on the climate, the initial R-value of the foam, the area of the home where the foam is going. For instance, an attic wall might need a thicker layer of foam than an interior wall. It is important to research the R-value recommendations for your particular climate.

Spray Gun – Ease of Use

When conducting DIU spray foam insulation projects it is important to make sure you know exactly how to use the spray gun and take proper safety precautions. The safety precautions include, but are not limited to, wearing a full-face respirator with organic respirator cartridges and wearing protective clothing. Do not forget to cover your shoes with a protective outer layer and to wear gloves.

The spray gun should be used in an even back and forth or up and down motion. You must make sure not to spray too much foam because it will expand greatly. To apply a heavier thickness when using the two pound closed cell foam, apply a heavy one-pass application instead of multiply applications. As a general rule of thumb, take your time when spraying. Rushing will lead to mistakes.

While spray foam is great for reaching tight spots and high spots, it could also easily over expand. Be observant of electrical openings and do not spray inside of electrical units. It is best to mark areas to avoid before starting to spray. It is also important to avoid spraying too much foam around a window, as the expanded polyurethane could damage the window frame. These are just a few of the precautions to take. Please call us for more information about how to properly use the spray gun or stop by one of our offices for a full demonstration and training on the use of the spray gun.  

Other Precautions

It is important to properly ventilate the area after completing the DIY spray foam insulation. It takes at least 24-49 hours for the fumes to be proper ventilated. Ensure that proper ventilation take places. Additional areas to note:

1)      Understand how air is flowing into and out of your home and understand the correct type of foam and how much foam needs to be sprayed.

2)      Accurately measure the board feet and buy an adequate amount of foam.

3)      Make sure the spray foam is applied in correct thickness and meets the energy code requirement for R-values.

4)      Ensure all areas of air leakage have been covered. Open cell foam more easily fills cavities, but closed cell foam requires more direct spraying to fill cavities.

5)      Apply the spray foam in uniform thickness across the entire area. Seal the entire envelope. Double check for any gaps and crevices.

Benefits of DIY Spray Foam Insulation

As mentioned earlier, foam insulation serves as an air barrier and insulation. Closed cell foam adds additional barriers such as vapor and moisture barriers. What’s more? Money saved on energy costs could add up to tens of thousand of dollars over thirty years. The money you put into DIY foam insulation is a sound investment. You will make your money back and save more than double what you initially spent. Foam insulation maintains it structural integrity for many years. Open cell and closed cell foam does not need to replaced during the lifetime of the building. Do the DIY spray foam insulation project the right way - use spray foam insulation kits by SprazEz. We ensure quality chemical products and proper preparation of the chemicals. We take pride in our work and hope you will take pride in your DIY spray foam insulation projects.