Everything to Know About Spray Foam Insulation Kits

Whenever the wintry season kicks in, we all need to ensure our homes are properly insulated to keep the cold draft outside so our loved ones stay toasty. Spray foam insulation kits may provide a solution for a quick do-it-yourself project at home. Have you considered spray foam insulation Austin to keep your indoor temperatures optimal? Let’s take a deep dive to unearth everything you might need to know before opting for spray foam insulation kits. Armed with such sound knowledge, you can make the right choice that adds value to your home. 

What Are Spray Foam Insulation Kits?

Outdoor temperature variations can have a drastic effect on any home. Wall, attic insulation, and crawlspace insulation works by guarding against the effects of the changing seasonal environment. In the same vein, spray foam kits help keep the air indoors from escaping, or outside air from breaching your home. In so doing, spray foam protects against extreme cold or heat, while also attempting to keep out pesky critters. 

When is a Spray Kit Ideal?

Are you planning to insulate the entire home, or do you need to work on a few sections? Well, if you need to cover a large area, hiring an insulation company may offer a better approach because the cost of kits may be prohibitive or higher. 

Are you comfortable working in sub-zero temperatures? Can you maintain the recommended temperature of the foam above 65 degrees Fahrenheit as you work? If not, opt for a truck-mounted unit as such usually have built-in heaters, which help keep the job going even in inclement weather. 

Another upside of insulation kits is that you can keep occupying your home after spraying, unlike a truck-mounted unit, which requires vacating your home for up to 24 hours. If you don’t have plans for alternative accommodation, then an insulation kit could be your best bet. 


Insulation material is usually labeled as R followed by a number, usually from 1 to 38. What does such labeling denote? For starters, R stands for the resistance a certain material offers against heat transfer. For instance, during winter, a high R-value prevents cold drafts from entering your home, keeping your haven warm. 

In hotter months, the walls should guard against heat transfer by keeping your interior space cool. As such, a higher R-value implies greater resistance to heat transfer. 

The Benefits of Foam Insulation

Do you need to seal holes and cavities in your home? Turns out that spray foam is quite pliable, making it easy to work with so you can fill cracks and crevices that other types of insulation may not. By reducing ambient noise, foam also promotes your home’s comfort. 

By creating an air seal, foam keeps out cold or hot hair from your home, reflecting lower heating or cooling costs. Spray foam also keeps out moisture, averting mold growth, which could affect your family’s health. In addition, foam holds up well over time once it cures, making it an ideal option for enhancing the structure of your den. 

The Downsides

You wouldn’t want to breathe in the noxious fumes that foam insulation kits emit. Investing in safety equipment is, therefore, a necessity. If you need to remove the foam later, prepare for a tedious process because once it cures, the insulation is difficult to scrape off. 

How is Foam Measured?

Foam kits are usually assigned a number showing the area, in board feet, that the foam can cover. Case in point, a spray foam kit allotted number 600 is likely to cover 600 square feet and yield a 1-inch thick layer. That means a foam kit allocated a higher number will cover a large area and vice versa. 

What About Cost?

Before taking the plunge, it’s pertinent to understand the cost implication of any project. The main factor determining the cost of a foam kit is its type. There are two types: a closed-cell and an open-cell kit. 

Open-cell foam expands upon spraying, making it ideal for crevices and hard-to-reach spots. The main downside of open-cell is its lower R-value. Low-cost open-cell kits go for about $40 and work well when you intend to patch up small areas. 

With that in mind, expect to fork out around $350 for open-cell spray foam kits to cover up to 200 board feet. The higher end of the price spectrum means you can cough up to $700, which can cover roughly 650 board feet. 

So with a 600 board foot kit of closed cell, you’ll need 2 board feet per square feet of wall area in Central Texas. And you’ll need 3.5 board feet per square foot of ceiling. So a 600 board foot kit only covers 150-300 sq ft.   

Now, closed-cell kits offer greater rigidity and stability than open-cell kits. As such, if you want to augment the structural integrity of a part of your wall or space, then a closed-cell kit is the way to go. Expect to fork out at least $150 more for closed-cell foam than open-cell kits. 

In a nutshell, open-cell kits work best in areas that require sound-deadening such as between walls in the hallway or under stairs. Although closed-cell foam kits are the more expensive option, they deliver greater water resistance and create a superior barrier against drafts and water vapor. 

Prepping For the Project

Personal safety is critical when working with chemicals. Invest in the right gear if you plan to undertake such a DIY project. Foam spatter can be difficult to scrape off once it cures, and we’re sure you don’t want it on you once the action begins. Some of the protective equipment you need include:

  • A fresh air respirator 
  • Wrap-around goggles
  • Disposable coverall
  • Chemical-resistant gloves

Grab some tape and plastic to cover windows and other areas that do not require insulation. A fan also comes in handy for venting harmful fumes, so consider setting one up. 

Also, foam kits clog up pretty quickly and easily, so you may require extra hoses or tips to keep the job going. What else? Oh, remember to clear your working space off furniture or anything that may interfere with your work. If you need ladders, have them in place beforehand. 

Does Foam Stick to Wet Surface?

We advise you not to spray foam on a wet surface. Generally, if the moisture content on a surface exceeds 20 percent, it would be a fool’s errand to work on it as the foam is unlikely to stick. 

Consider waiting for new surfaces to dry up first before attempting to spray. Also, if you’re not sure if a surface is wet or not, a quick test for the moisture level could help you determine the best course of action. 

Ease of Application

Let’s say that practice makes perfect. For the uninitiated, it might take a couple of tries to determine the thickness of your application. You may end up applying too thick a layer or too thinly. But, if you don’t want to take the gamble, you might consider hiring a company with a truck-mounted unit, especially if you have a large area to cover. 

There you have it: the ins and outs of spray foam insulation kits. Find us at https://www.stellrr.com/ if you need a professional to do the heavy lifting to create a cozy and energy-efficient environment in your home. 

Stellrr Insulation & Spray Foam,

401 Congress Ave, #1540 Austin TX 78701,


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