The (Not-So) Secret Spots and Reasons You Should NEVER Insulate with Spray Foam

The (Not-So) Secret Spots and Reasons You Should NEVER Insulate with Spray Foam

Meta Description: Spray foam insulation is an excellent product to make your home energy-efficient and comfortable. But there are some places where you should never use spray foam insulation.

Have you ever been in a home that didn't seem to be keeping out the cold? Maybe you've even checked the walls for warmth. It's time to stop looking for issues and start fixing them!

When it comes to insulation, there are many options to choose from. You can go with traditional fiberglass insulation, or you might decide to use cellulose or foam insulation. But Spray Foam Ashville WNC, LLC will specifically talk about using spray foam insulation in this blog post.

Hint: It's not for use in every room of your house.

So sit back and relax while we give you the inside scoop on the (not-so) secret spots you should never insulate with spray foam.

The Fumes Don't Belong in Your Kitchen:

We know you love to cook, and we also know that your kitchen is the heart of your home. But when it comes to using spray foam insulation, the kitchen is a no-go zone.

The fumes from the spray foam are potent, and they don't belong in an area where you're preparing food. Not to mention, those fumes can linger for days after the initial application.

So if you're looking to insulate your kitchen, traditional fiberglass insulation is a much better option. Trust us on this one.

You Don't Want Spray Foam in Your Bathroom:

While the spray foam will do a great job insulating the space, it's not exactly waterproof. It can invite water damage and mold into your bathroom if not installed correctly. And we all know what happens in the bathroom. Water and electricity don't mix, so it's best to steer clear of using spray foam in this room.

So unless you're planning on doing a complete renovation of your bathroom, we recommend avoiding spray foam insulation in this space.

Steer Clear of Areas Close to Ceiling Light Boxes

Spray foam should not be used to insulate areas surrounding recessed ceiling canister lights. If you spray too near the top of ceiling lightboxes, you'll trap heat and increase the possibility of a fire. Even if your recessed canister lights are intended to be placed near insulation, you should consult a specialist about other alternatives.

Lightboxes are usually made of plastic or metal, and the last thing you want is for the spray foam to adhere to it and cause a fire hazard. It's best to play it safe and steer clear of spray foam anywhere near ceiling lightboxes.

Be Mindful of Your Health Conditions

The chemicals in the foam might irritate your skin and aggravate the conditions you already have. Therefore, if you have any respiratory problems, you should avoid using spray foam insulation.

It's also important to be aware of the potential for skin irritations. The chemicals in spray foam can cause rashes and other skin problems, so it's essential to take precautions if you're using it.

Wear gloves, long sleeves, and a respirator mask when working with spray foam insulation.


If you live in a house with lots of nooks and crannies or exposed beams (or any other characteristics that would restrict the foam from expanding fully), this might not be the best solution for you.

But don't fret. Our experts at Spray Foam Ashville WNC, LLC, serving Marshall, will help you figure out a suitable insulation solution for your home.

Give us a call today!