Spray Foam Insulation: 3 Affordable Kits REALLY Work (2022)

-Updated 1/24/2022

\Whether you’re insulating your house for the heat of summer or the freezing air of winter, nontoxic spray foam is a fantastic choice.

It’s easy to use, there’s not much of a mess left behind, and the kits are relatively affordable.

So, what are the best spray foam insulation kits for your home?

Touch ‘n’ Seal, Dow Froth Pak, and Foam It Green make perfect insulation products for every house.

You can also use them to insulate a vehicle, a shed, and any other building. Most of them are as simple to use as a point-and-shoot application.

You will Learn:

  • The different and best non toxic spray foam insulation
  • Pros & cons of the different kinds
  • Safety
  • What not to do when applying spray foam
  • Tips to save money and time

Safety Gear:

  • Tyvek disposable suit
  • gloves
  • respirator mask
  • Fan
  • Trash can, trashbag

Without further ado, let’s check out the three best spray foam kits for insulation below.

Froth-Pak 210
Insulation Kit
Foam It 202


620 Spray Foam
Sealant Kit
1. water resistant
2. fire rated
3. easy to use
4. Bonds to wood,
rigid foam,
drywall and more
5. you can
start and stop
6. DIY –
will save
you $$$
Pros: 1. Green
foam – easily
where you left
24/7 customer

water resistant
3. fire retardant
4. Free of CFC,
VOCs & Urea Formaldehyde
6. Resists mold!
Pros: 1. water resistant
2. fire rated
3. easy to use
4. Bonds to most
5. Ideal for
bigger SF area.
6. Covers 620 SF
1. do not apply in cold temperatures
2. you may need more than 210 sqft
1. do not apply
in cold temperatures
2. you may need
more than 202 sqft
3. It may not provide enough for your job. Measure twice!
Cons: 1. do not apply in cold temperatures
2. No 24/7 customer

Prep work:
clean / dry surface
Prep work:
clean / dry surface
Prep work:
clean / dry surface
Kit includes:
comes with 2 tanks,
9′ hose
Kit includes:
2 tanks,
tyvek suit,
extra nozzles
10 extra fan tips
Kit includes:
2 tanks,
15′ hose
12 nozzle tips
(start and stop)
(start and stop)
(start and stop)
42 lbs
apply at room temp
apply at room temp
apply at room temp
Clean up:
Clean up:
Clean up:
Can mix with other
Can mix with other
No. Other foams
may not resist mold
Can mix with other
Disposal of used equipment:
take to landfill
Disposal of used equipment:
take to landfill
Disposal of used equipment:
take to landfill
1. NFPA 286 Special Building Code Approval
2. wear safety gear above
1. Class 1
ASTM E-84 Fire Retardant
2. wear safety gear above
1. NFPA 286 Special Building Code Approval
2. wear safety gear above

The Best Spray Foam Kits for Insulating a House

Froth-Pak 210 Fire-Rated Insulation Kit by Dow Chemical Co.

Prep. When spraying any spray foam inside your house you should open the windows to improve air quality.

You won’t need a blowing agent since the tanks are pressurized for use.

If you’ve never used a spray polyurethane foam insulation kit before, then you should definitely get the Froth-Pak 210 Kit on Amazon here.

It can be used on exterior walls or interior walls and ceilings, garage rafters or in basement wall cavities. You don’t need to use a vapor barrier before you apply it either.

It is closed cell foam. (Not open-cell foam).

It has very high customer reviews and very few complaints.

It’s very easy to use with the spray nozzle.

It also includes ten different tips to try out, including six fan tips and four con tips to figure out which one is the best for your home.

The ‘210’ in the description of this product refers to the fact that it covers 210 sq. ft. of an area with one inch of foam.

Spray it evenly back and forth to get the most out of it. You should never aim a spray nozzle directly at a single area for too long.

One of the most notable features of this foam insulation is that it’s moisture-resistant


You won’t have to deal with mold growing all over it, unlike insulation batts and other types of insulation.

It also has a chemically-cured formula to expand and dry quickly.


  • Comes with enough foam to cover 210 square feet with 1-inch thick foam
  • Easy for beginners to use
  • Moisture resistance to prevent mold and bacterial growth
  • Includes ten different nozzle tips

Foam It 202 Fire & Flame Retardant Spray Foam Insulation Kit


Next up on the list is the Foam it 202 Fire Retardant Spray Foam Insulation Kit.

This pack covers 202 sq. ft. with a 1-inch thick layer of high-quality insulation.

It also comes with safety gloves, a handful of adjustable tips to change the spray style, and coupons to save money on your next purchase with the company.

This foam insulation expands to create a seamless barrier that’s airtight and watertight.

It has a green tint to show you exactly where you’re spraying it, rather than blending in with the surface that you’re using it on.

It is not open cell. It prevents air leaks.

The barrier also prevents mold from growing, much like the previous entry on the list.

The total R-value of this insulation foam is 7, which is much higher than the vast majority of spray foams on the market. Their R Value is much lower.

Many customers have used it to insulate houses, campervans, and other enclosures.

Related articles:


  • Includes flame retardants
  • Includes gloves and numerous tips to change the nozzle spray pattern
  • It comes with 202 sq. ft. of spray foam insulation
  • Has an R-value of 7
  • The green coloring distinguishes the foam from everything around it
  • Mold resistant!

RELATED: 3 Simple Methods to Permanently Raise Concrete with Foam NOW!

DOW FROTH-PAK 620 Spray Foam Sealant Kit

If you’re working on a big project, such as an attic or a garage, then the Dow Froth-Pak 620 Spray Foam Sealant Kit is the way to go.

Given the name, you’ll notice that it has enough insulation to cover 620 sq. ft. with high-quality insulation foam.

Perhaps the most impressive trait is that it cures in under one minute.

The two-part formula used in this insulation foam works to expand and harden quickly, but it also forms a moisture and air barrier to maintain the interior temperature of the area.

Whether you’re fixing a small corner of a crawl space or a massive room, this solution is an excellent choice for all buyers.

If you decide to buy this kit, you’ll also receive a petroleum jelly packet, a small wrench, 12 nozzles (8 cone-style and 4 fan-style nozzles), as well as a 15-foot hose.

A thin layer of skin begins to form in under 40 seconds, creating an insulation barrier right away.


  • Comes with everything you need to get the job finished on time
  • Quick curing process
  • More than enough insulation to cover over 600 square feet of space
  • Maintains interior temperature and prevents mold from growing

Foam Kit 110

 Last but certainly not least is the Foam Kit 110 by Touch ‘n’ Seal.

This top-tier pack is designed for small areas, such as tiny sheds, crawl spaces, patch jobs, and so on.

It comes with a pre-connected 10’ hose that gives you enough range to move around without feeling limited or tethered to the box.

The gun is made to prevent a cross-over of the chemicals by using two separate tubes.

The mixture combines as you squeeze the trigger, creating a new bond that hardens in minutes.

It expands up to 30 times larger than the original liquid, so make sure that you don’t spray too much at a time.

Another great feature of this spray foam is that it already has everything set up as it arrives.

You don’t have to hook up the hose as mentioned earlier, but the two bottles are already upside down as well.

Rather than manually mixing and applying the foam, you only have to point and shoot right out of the case.


How to Use Spray Foam Insulation

You can either have professionals do the installation process, or you could save money by applying the spray foam insulation by yourself.

If you DIY the project, follow the suggestions below to have the best chance of success.

  1. Wear head-to-toe protection. Spray foam contains toxins before it hardens, not to mention that you don’t want to breathe it in. Put on gloves, safety goggles, a breathing mask, and long sleeve clothing.
  2. Dry off all surfaces that you intend to spray the foam. Otherwise, the cell spray foam won’t stay in place.
  3. Cover windows and other areas that you don’t want to get insulation foam on.
  4. Start by spraying the outside areas of the portion that you’re insulating. Slowly spiral inwards to ensure an even coating.
  5. Once it’s thoroughly dried, use a curry comb to remove excess foam bits that stick out.
  6. Ventilate after you apply the foam for an hour afterwards to remove any fumes and make the area safe.

You also need to keep in mind that you’ll have to replace the nozzle every time you stop using the sprayer for 30 seconds or more.

The foam hardens, making it impossible to spray.

You’ll also need to use the petroleum jelly packet to lube the nozzle when you replace it to prevent the foam from drying right away.

Spray Foam Insulation: Summary

Department of Energy

Spray foam insulation is easy, convenient, and affordable. It will help lower your energy bill as the spray foam insulation has high energy efficiency and prevents heat loss.

Whether you’re a DIYer or someone who loves an efficient job well done, foam is almost always the way to go. Don’t forget to wear safety gear and follow the steps mentioned above.

Here are a few takeaways:

  • Safety – Wear a respirator, gloves and suit to protect yourself from the foam and fumes. Also, ventilate the area to remove any of the fumes afterwards.
  • Prep work: Have a clean and dry area for the foam to attach.
  • SQ FT – Make sure you have a good idea of the actual sq ft area that you plan on insulating. It is best to buy more foam than you need or else you will run out. It is better to have more than enough.
  • Directions: don’t stop and forget to clean off the tip and turn off the tanks.


Do spray foam products have harmful chemicals?

Some of them do. They are not fully green chemicals since they are man-made.

Should I hire a spray foam contractor to do big jobs?

Not necessarily.

What Are Possible Safety & Health Concerns?

  • Eye irration
  • Human health
  • Health problems like skin irritation if the chemicals contact the skin
  • Toxic fumes. toxic chemicals.
  • Respiratory problems & lung damage if you are exposed to a large quantity of fumes for an extended period of time.
  • Contact the environmental protection agency for more information on spray foam.
  • Occupational safety is not a big concern for most spray foams if you take the right precautions.

Can I DIY spray foam insulation?

Yes, you can DIY spray foam insulation. There are several spray foam insulation kits you can purchase for small or large projects. Make sure to wear the correct safety gear and follow the directions exactly.

Should I spray foam my attic?

You should insulate your attic. Spray foam is an excellent option to properly insulate your house and reduce heat loss and lower electric bills.

Is spray in foam insulation worth it?

Yes, spray foam insulation is worth it. Spray foam insulation is easier to apply than traditional bat insulation and provides your house and energy efficiency savings that you would not have without it. It also does not add contaminants to the air like regular insulation or particle insulation does.

How long does spray foam last?

Spray foam insulation glass 75 to 100 years. It will last longer than your house will most likely. Proper upkeep will help in the longevity of the spray foam insulation.

Is 2 inches of closed cell foam enough?

Wall: 2″ for warmer climates, 3″ for colder. Ceiling: 4″ for warmer climates, 5-6″ for colder.

This will provide adequate R Factor and properly insulate your home.

Is spray foam insulation breathable?

Yes spray foam insulation is breathable if it is open-cell spray foam insulation. Closed-cell spray foam insulation is not breathable. For addicts use open cell. For walls use a closed cell.

Do you need soffit vents with spray foam?

You do not need soffit vents with open-cell spray foam insulation. An air gap is not necessary as the spray foam adheres to the roof. Open-cell spray foam insulation also allows roof leaks to be detectable since the water can penetrate the foam. 

Does spray foam cause mold?

No spray foam does not cause mold. In fact, it helps reduce the likelihood of mold. The spray foam is mold resistant so mold will not develop in the first place. Keep the humidity in your house below 50% to prevent mold from growing. A dehumidifier will easily reduce the humidity in your house and basement.

How thick should spray foam be in basement?

2-3″. Spray foam as an excellent r value and will help keep your basement warm but most basements will need 2 in. In colder climates 3 in will be necessary.

Do I need Vapour barrier with spray foam?

No, you do not need a vapor barrier with spray foam. If a vapor barrier is already installed you can spray the foam over it. If you do not have a vapor barrier it is not necessary or recommended to install.

Is it worth insulating the roof?

Yes, it is worth it insulating the roof. It is estimated that 25% of a home’s heat is Lost through the uninsulated roof. By insulating the roof you improve the efficiency of your home, reduce your heating bill, extend the life of your furnace and improve the overall comfort in your house.

What is the cheapest way to insulate an old house?

  1. Identify source, Stop drafts, leaks. 
  2. Insulate attach with blown insulation. 
  3. Plastic over windows. 
  4. Door sweep
  5. Close drapes so less heat escapes via old windows. 
  6. Walls covered: blown insulation into the wall via hole at top. 
  7. Close fireplace, use chimney balloon to prevent air from escaping
  8. Insulate dryer vent

Can you spray foam old house?

Yes, you can spray foam in Old House. You must remove existing insulation first. To insulate walls cut a hole at the top of the wall and insert the spray foam applicator to fill up the cavity remembering that the spray foam expands once it hardens cut off the excess patch the hole. 

What are potential problems with spray foam insulation?

  1. Not spraying on clean surfaces. Can lead to not bonding correctly. 
  2. Smell. Not aireting the room, area sprayed with foam. Just like new paint, you need to let the chemicals move outside. Use a fan to blow the smell out a window.

How Long is Spray Foam Insulation Toxic? 

Spray foam insulation is toxic for 24 to 72 hours according to the EPA. Homeowners should stay away from their home during this time so the gases can adequately leave the house. Wearing personal protection equipment will allow you to safely spray foam insulation yourself or have it done for you safely.

Where should you avoid applying spray foam insulation?

  1. By heat source. Spray foam insulation is flammable and can ignite if by a heat source do not spray by fireplaces furnaces or any open flame, heat source.
  2. Around electrical outlet
  3. Around windows (unless it is specifically designed for window insulation). This foam normally has minimal expansion and won’t destroy your windows. 
  4. Other areas it was not designed for. 

Is spray foam insulation a fire hazard?

Spray foam insulation is a fire hazard, however, this has it can be mitigated by following the insulation instructions, keeping away from heat sources.

NFPA 285 apply to spray foam insulation?

NFPA 285: Flame Propagation in Exterior Walls is a standard from the national fire protection association and applies to all insulation and exterior walls. If you purchase spray foam insulation you should verify that it is NFPA 285 compliant to mitigate the risk of fire and smoke

Three products listed above are NFPA 285 compliant.

Almost all if not all of the spray foam insulation products that are sold in big box stores adhere to this requirement… where you have to be careful is if you purchase spray foam insulation that is not in the original container and does not include the hazard ratings from the manufacturer.

As with any chemical that you use in or around your house, be sure to read the instructions to apply it and where the correct personal protection equipment is before you use it.

Is spray foam insulation a good sound proofing material?

Yes, spray foam insulation is a good soundproofing material for new construction or renovation projects with exposed drywall. It is easiest applied before drywall is put up. 

  • With existing houses  finished rooms there are alternative options that help with soundproofing rooms. 
    • Door sound blankets
    • Door insulation strips & sweeps
    • Heavy drapes to absorb sound

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D. Hahn

DIY guru, dad, husband, blogger. When I'm not creating life hacks I'm teaching my kids how to fix stuff after their dad breaks it.

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