Is Foam Roof Repair Right for You?

Close-up of a foam roof showcasing seamless spray polyurethane foam application for insulation and waterproofing.

What is Foam Roof Repair?

A foam roof repair involves fixing issues on a spray polyurethane foam (SPF) roof, a roofing system known for its durability, insulating and waterproofing capabilities. SPF roofs are made by spraying a liquid foam that expands and hardens into a seamless, insulating layer. Over time, however, foam roofs can develop issues like punctures, blisters, cracks, or UV damage, which require repair to maintain their integrity and effectiveness.

How Does Spray Foam Roofing Compare to Traditional Roof Repair Methods?

SPF repair, which is sometimes referred to as spray foam roof repair or polyurethane foam roof repair, differs significantly from traditional roof repair methods in its application, durability, energy efficiency, and cost-effectiveness. Here’s a comparison of spray foam roofing and conventional roofing systems like asphalt, shingles, or single-ply membranes:

1. Application Process

  • Spray Foam Roofing: SPF is applied as a liquid and expands into a foam that forms a seamless, waterproof layer. This method covers all roof penetrations and creates a continuous surface, reducing the chances of leaks.
  • Traditional Roofing: Common traditional roofing materials (like asphalt shingles or membrane roofing) require multiple layers and seams, which can make them more vulnerable to leaks over time.

2. Energy Efficiency

  • Spray Foam Roofing: Foam roofs have excellent insulation properties, reducing energy costs by maintaining indoor temperatures more efficiently. The foam creates an insulating layer that minimizes heat transfer.
  • Traditional Roofing: Many conventional materials don’t offer the same insulation value as SPF, which may lead to higher heating and cooling costs.

Expansive foam roof under sunlight, highlighting energy-efficient and durable roofing benefits compared to traditional methods.

3. Durability and Maintenance

  • Spray Foam Roofing: SPF roofs can last 20–30 years or more with proper maintenance, including recoating every 10–15 years. The foam layer also resists UV damage if a UV resistant topcoat is applied, referred to as a “cool roof”.
  • Traditional Roofing: Traditional roofs often have shorter lifespans and are more prone to damage from UV rays, hail, and temperature fluctuations. Shingles, for example, typically last 15–20 years.

4. Cost and ROI

  • Spray Foam Roofing: Initial installation costs may be higher, but the energy savings and long lifespan often offset this over time. SPF roofs are also relatively easy to repair, often without needing a full replacement.
  • Traditional Roofing: Upfront costs are often lower, but ongoing repairs and potentially shorter lifespan can add to the total cost over time.

5. Environmental Impact

  • Spray Foam Roofing: Foam roofs reduce energy usage and with reapplication, can extend the roof’s life without generating waste. Many SPF materials are also environmentally safe and sustainable.
  • Traditional Roofing: Some traditional materials, like asphalt shingles, can contribute to landfill waste upon replacement, and they may lack the insulation benefits that help reduce energy consumption.

6. Weather Resistance

  • Spray Foam Roofing: SPF roofs have high wind uplift resistance and are highly effective in areas prone to heavy rain or snow. Because they are seamless, they are less prone to water intrusion.
  • Traditional Roofing: Traditional roofs, particularly those with seams or joints, can be more susceptible to leaks, especially in extreme weather conditions

What Does a Foam Roof Repair Include?

Close-up of a foam roof repair process with foam layer replacements and protective coating application.If you’re thinking of getting a foam roof repaired, you’ve probably noticed signs of damage like holes in the roof or severely worn areas. If you’re not sure whether they necessitate a repair yet, it’s worth calling a professional to get their assessment. The repair process will vary by contractor and building company, but should incorporate some version of these elements:

  1. Inspection: The repair process will begin with an assessment of the roof for damage, including cracks, holes, blisters, or worn areas. If you notice any of these before having a formal inspection, these are signs you need to repair the foam roof.
  2. Cleaning: If cleaning is required, the specialist will remove debris and dirt from the damaged area, as foam needs a clean surface to adhere to.
  3. Cutting out damaged areas: The damaged foam sections may be cut out and removed if severely compromised.
  4. Foam replacement: The replacement process includes spraying new foam onto the damaged area to restore the roof’s surface. This new foam fills any gaps, cracks, or low spots.
  5. Sealing: The last step involves applying a UV-resistant coating over the repaired area to protect against sun damage, in order to avoid foam deterioration.

You may find during the inspection that the roof requires a foam roof replacement, versus a repair, in which case the process will be a bit more involved.

Side-by-side view of old and newly replaced foam roof sections, illustrating repair versus replacement outcomes.How Does a Foam Roof Repair Compare to a Replacement?

Foam roof repair and foam roof replacement differ in scope, cost, and the extent of work required. A foam roof replacement differs from a repair in that it involves removing and reapplying the entire foam roofing system. This is typically necessary when the roof has extensive damage, widespread water infiltration, or when the foam and protective coatings have deteriorated beyond repair.

Can a Traditional Roof Be Repaired With SPF?

Damaged traditional roof section alongside a spray foam retrofit solution for insulation and durability.Yes! SPF can be adhered to most types of roofs. You can either have your current roof repaired with SPF or if you would like to replace the current materials with foam roofing entirely you would need to get an SPF installation or retrofit to replace what you currently have. Spray foam roofing can offer significant advantages over traditional methods, especially for buildings where insulation and energy savings are priorities. For instance, it would offer a lot of long-term benefits for a large investment like a commercial foam roof project. While the initial cost might be higher than traditional roofing materials, the long-term benefits of durability and reduced maintenance needs often make SPF a cost-effective alternative. However, traditional roofing methods might still be more practical in cases where upfront costs or specific aesthetic needs are the priority.

Once your foam roof repair is complete, routine maintenance and timely repairs are essential to keep a foam roof in good condition and maximize its lifespan, which can be up to 30 years with proper care. Whether you’re looking for a foam roof repair, replacement, or installation, Troyer Commercial Roofing can recommend the right SPF solution. Call today for a free inspection!