Spray Foam Insulation

Top-rated Insulation Contractor
Servicing the Phoenix Metro Market

In Phoenix’s intense heat, your home’s insulation makes all the difference between sky-high energy bills and real savings. As your local experts at Koala Insulation of the East Valley, we know that spray foam insulation does what traditional materials can’t – it completely seals your home’s walls, attic, and crawl spaces against air leaks. While fiberglass and blown-in materials leave gaps where air can escape, spray foam expands to fill every crack and corner, creating a solid barrier between you and the Arizona heat.

Types of Spray Foam Insulation and Their Benefits

Choosing the right spray foam makes a big difference for your home. There are two main types: open-cell and closed-cell foam. Let’s break down what each one does best.

If you’ve ever felt that summer heat radiating through your walls like a furnace, you’ll appreciate what closed-cell foam can do. Closed-cell spray foam packs more insulation power per inch. It’s dense, blocks moisture, and works great in tight spaces. This makes it perfect for exterior walls and areas where you need serious protection from Phoenix’s summer heat.

Open-cell foam is lighter and costs less. While it only gives you less insulation power per inch, it still stops air leaks and even helps cut down on noise between rooms. Many homeowners choose open-cell foam for interior walls and attics where they have more space to work with.

Blown in Insulation

Best Places to Use Spray Foam in Your Home

Your attic is often the biggest culprit for energy loss. Without good insulation up there, your AC works overtime fighting against 150-degree attic temperatures. Spray foam at the roofline creates what pros call a “conditioned space,” dropping those attic temps dramatically and helping your whole house stay cooler.

When it comes to protecting your home, your exterior walls are another critical area that needs proper insulation. Crawl spaces also benefit greatly from spray foam, creating a barrier against ground moisture and heat. You’ll want to pay special attention to those tricky spots around can lights and electrical boxes, where air commonly leaks through. Finally, areas around pipes and vents need special attention since these penetrations through your walls can be major sources of air leaks.

Installation Process and What to Expect

A typical Phoenix home takes 1-2 days for installation. Closed-cell foam needs time to dry between layers, while open-cell foam can usually be done in one go. For a spray foam installation you will need to be out of the house during the installation process and 24 hours after the job is complete to allow the product to fully off-gas and cure.

Why Spray Foam Works Better in Phoenix's Climate

Phoenix’s weather puts unique demands on your insulation. When it’s 110° outside and your AC is set to 75°, that’s a 35-degree difference your insulation has to fight against. Regular insulation just can’t keep up with these extremes.

Spray foam handles Arizona heat differently because it stops air movement completely. Hot air can’t push through it in summer, and your cool air can’t leak out. This matters most during those long stretches of triple-digit days when your AC needs all the help it can get.

Common Questions About Spray Foam

1. Why is spray foam so effective?

Both Open-cell and Closed-cell spray foam create an airtight seal which also prevents mold and mildew
from growing. Closed-cell spray foam also has the added benefit of creating a vapor barrier at
approximately 1.5 inches.

Yes – many homeowners tell us they notice a big difference in outside noise after installation.

Spray foam doesn’t break down like fiberglass. Once it’s in, it stays put and keeps working for the life of your home.

Getting Started With Spray Foam Insulation In Phoenix

Getting spray foam insulation doesn’t have to be complicated. At Koala Insulation of the East Valley, we start with a quick measurement of your space to get a rough idea of cost. Make sure to pick a licensed installer who knows Phoenix’s building codes and climate challenges.

They should walk through your home, point out problem areas, and explain exactly what needs to be done. Want to stop fighting against rising energy bills? Call us for a free quote on spray foam insulation. We’ll help you pick the right type for your home and budget.