6 Things to Consider When Switching to SPF Roofs

September 12, 2025

The SPF roof market is growing rapidly, and most homeowners and businesses in North America are choosing spray foam roofs for energy efficiency and long-term savings.

So, if you’re also considering upgrading to an SPF roof, there are a few important things you should know before making the switch. In this blog, we’ll walk you through the key factors, common questions, and expert insights, so you can decide with confidence.

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What Are the Important Points to Consider Before Switching to an SPF Roof?

1. Choose the Right Roofing Contractor

SPF roofing is all about skill. A poorly trained installer can ruin the job, leaving you with leaks, blisters, or weak spots.

When picking a roofing contractor, check for –

  • Licensing and insurance
  • Certifications with SPF associations
  • Local experience and completed projects

2. Check for Suitable Weather and Timing

SPF is applied as a liquid that expands into foam. For it to cure properly, conditions must be right 

  • The temperature above 50°F is perfect for spray foam application.
  • A dry surface is preferred. There should be no moisture, rain, or dew.
  • Low wind prevents overspray and uneven layers

The best time to install SPF roofing is usually spring or fall, when the weather is mild.

3. Prepare Your Roof First

An SPF roof is only as good as the surface it’s sprayed on. The existing roof deck must be clean, dry, and structurally sound.

  • Any old leaks, weak areas, or poor drainage must be addressed up front. 
  • Debris must be cleared, surfaces prepped, and primer may be needed in humid conditions.

A licensed professional roofing contractor will evaluate the existing roof first.

4. Consider Your Roof’s Design

SPF can be applied to almost any roof – flat, sloped, or even curved. Because it’s sprayed on, it creates a seamless surface that adapts to irregular shapes.

But if your roof has lots of pipes, vents, skylights, or HVAC units, installation can be more complex. In those cases, you’ll need an experienced roofing contractor who knows how to apply the foam evenly around tricky areas.

Before making the switch, talk with your contractor about your roof’s design to make sure that the foam is applied correctly and your roof performs at its best.

5. Weigh Cost Against Long-Term Savings

One of the biggest things to consider before switching to SPF is the price tag. Yes, it usually costs more upfront than traditional roofing. But still, you must go for it for these reasons –

  • Lower energy bills thanks to SPF’s insulation power.
  • Fewer repairs because the seamless surface leaves fewer weak spots.
  • Extended lifespan with simple recoating instead of costly replacements.
  • Lightweight design that may reduce structural reinforcement costs.

When you look at the long-term savings, SPF often pays for itself over the years.

6. Maintenance Plan for an SPF Roof

SPF roofs don’t require much upkeep, but that doesn’t mean no maintenance. To keep your roof performing at its best, you must –

  • Schedule an inspection at least twice a year, during the spring and fall months, and after major storms.
  • Remove debris and repair small punctures right away.
  • Plan for a recoating every 10-20 years, which can extend the roof’s life indefinitely.

Are you ready to commit to periodic care instead of waiting for costly replacements? With proper upkeep, an SPF roof can protect your property for decades.

Ready for a durable SPF roof? Get your free quote today.

Foam Experts Solutions for Most Commonly Asked Questions About Switching to SPF Roofs

1. Why Are SPF Roofs Different?

  • It’s seamless, so leaks are rare.
  • It combines insulation and waterproofing in one system.
  • It strengthens your roof without adding heavy weight.
  • It can be renewed indefinitely with recoating instead of tear-offs.

2. Can SPF be applied over my old roof?

SPF works on most surfaces, including metal, concrete, and asphalt, as long as the base is solid.

3. How long does an SPF roof last?

With inspections and recoating, it can last 30 years or more.

4. Is it really worth the cost?

Most owners save enough on energy and repairs to outweigh the upfront price.

5. Does it add weight to my roof?

Not at all. SPF is lightweight compared to traditional systems.

6. What if my roof has vents, slopes, or equipment?

That’s where SPF shines. It molds around complex shapes, creating a seamless barrier. You need to work with a professional for the best application of spray foam around tricky areas

7. What about installation mistakes?

Too real. That’s why your choice of contractor matters. Foam Experts Co. is licensed, bonded, insured, and experienced in installing SPF right the first time.

Takeaway

Switching to an SPF roof is a smart investment, but only if you plan carefully and choose the right roofing company. With proper installation, maintenance, and recoating, SPF can protect your property for decades while cutting costs along the way.

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Start Your Energy-Saving Roof Plan With Foam Experts Co. – The Top-Rated SPF Specialist in Redding

Are you ready to install the spray foam roof? You need a trusted partner. At Foam Experts Co., we’re more than just another Redding roofing company.

With over 40 years of experience, we’re the most trusted roofing contractors. We don’t just spray foam; we inspect, prepare, execute, and maintain. And when you need us in an emergency, we answer the call, 24/7.

Call us at 800-281-0313 to get your free SPF roofing estimate!

Posted in Foam Expert