Image of materials used for roof insulation.

Among the many roof insulation types, the most common and recommended are fiberglass batts and rolls, spray foam, rigid foam, reflective or radiant barriers, mineral wool, cellulose, sprayed polyurethane foam (SPF), green roofs, and spray-on ceramic coatings.

To know more about each type of roof insulation, you must read this complete guide. Here, you will learn the most frequent insulation methods used in both residential and commercial buildings, and the ideal ones for metal, flat, and attic roof insulation.

What Are The Different Types Of Roof Insulation? The 9 Most Common

Have you done a roof inspection checklist and discovered your insulation is inadequate? The list below provides the most appropriate type of roof insulation according to your specific needs. Read on for detailed information!

1. Fiberglass Batts And Rolls

Fiberglass insulation is one of the most common types used in residential buildings. It comes in pre-cut batts and rolls that fit between roof joists, providing excellent thermal resistance. It's also relatively inexpensive and easy to install, making it a popular choice for attic roofs.

2. Spray Foam Insulation

Spray foam insulation expands upon application, filling gaps and sealing air leaks. This type of insulation provides a high R-value per inch, making it highly effective at regulating temperature. Spray foam is versatile and can be used in various roof types, including flat roofs and attics.

3. Rigid Foam Boards

Rigid foam boards are made from polystyrene, polyisocyanurate, or polyurethane. These boards offer high insulation values and can be used on almost any roof type. They are beneficial for insulating flat roofs and can be installed above or below the roofing material.

4. Reflective Or Radiant Barrier Insulation

Reflective insulation, or radiant barrier insulation, is ideal for hot climates. It works by reflecting heat away from the roof, reducing the heat penetrating your home. If you are here to know what type of insulation to put under a metal roof, this type of insulation is incredibly effective and can significantly reduce cooling costs.

5. Mineral Wool Insulation

Made from natural rock or slag, mineral wool insulation is fire-resistant and provides excellent thermal performance. It is available in batts or as loose fill and can be used in various applications. It is a superb type of attic roof insulation.

6. Blown-In Cellulose Insulation

Cellulose insulation is made from recycled paper products treated with fire retardants. It is an eco-friendly option that provides good thermal and sound insulation. Blown-in insulation with cellulose is particularly effective for attics and can fill in gaps and crevices that other insulation types might miss.

7. Sprayed Polyurethane Foam (SPF)

SPF is a liquid foam that expands and hardens into a solid insulation layer. It is highly effective at sealing leaks and gaps, making it a popular type of commercial roof insulation. SPF provides a continuous barrier against heat, moisture, and air infiltration, ensuring a well-insulated building.

8. Green Roofs

Green roofs are a more unconventional but highly effective insulation method. They involve growing vegetation on top of a specially designed roof system. The plants and soil act as natural insulators, keeping the building cool in the summer.

Green roofs are suitable for flat roof insulation types and slightly sloped roofs and offer environmental benefits like improved air quality and reduced urban heat island effect.

9. Spray-On Ceramic Coatings

Spray-on ceramic coatings are a newer technology in roof insulation. These beneficial roof coatings are applied directly to the roof surface and form a reflective barrier that helps to reduce heat absorption. They provide a durable and low-maintenance insulation option.

Now that you know more about roof insulation types, call homeyou's insulation contractors and schedule an appointment! Reach them out now and guarantee an insulated home ASAP.

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