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Cool Roofs

Summary: Let’s look at how a roof can take on new life and add value to your home with metal, asphalt or spf roofs

Author: Robert Morris

Posted on: 8/2/2011


Roofs are by necessity a remodeling must at some point during the life of a house, but not always thought of in such terms. We “replace” roofs. We don’t necessarily “re-model” them. That said, not every roof replacement is a cut and dried clone of the previous roof. Let’s look at how a roof can take on new life and add value to your home.

Cool Roofs

Cool roofs are both literal and figurative. They are designed to keep the heat out and off the home, thus saving on using energy to cool the home itself. There are essentially three types of cool roofs.
  1. Metal
  2. Asphalt
  3. SPF (Polyurethane, Acrylic, Silicone and Polyurea coatings)

The Advantages of a Metal Roof

  • They don’t rot, crack, warp, curl, split, flake, peel, break, burn, or blow off.
  • It’s the most resistant roofing material to hail, wind, fire, and freezing/thawing.
  • Available in wide variety of roofing styles, patterns, designs, and colors.
  • Lightweight - most styles are less than one-third the weight of asphalt/fiberglass shingles.
  • Energy efficient - can lower your a/c and heating costs.
  • Low maintenance.
  • Long lasting and durable.
  • Long warranty.
  • Can reduce the cost of your homeowner's insurance.
  • Can usually be installed over your existing roof (reroofing).
  • Can increase the resale value of your house .
Ironically, metal roofs don’t rust and many are guaranteed for fifty plus years. Galvalume coated steel roofing panels are used and are protected by layers of metallic and polymer coatings.

The Advantages of an Asphalt Roof

  • Asphalt/shingle roofs are the most affordable roofing solution.
  • Easy maintenance and installation, since shingles can be replaced when needed.
  • Appearance; Asphalt/shingles have a wide variety options, from wood, cedar shakes, tile and slate, there’s an abundance of options.
  • From a cost perspective, asphalt roofs are affordable since they are manufactured in bulk. Clearly, asphalt roofs have a built in cost advantage.
  • Popularity. People are familiar with asphalt roofs and if they are in good shape and reflect the essence of a house, they are a plus in a re-sell. Unlike the somewhat esoteric properties of a metal roof, there’s not a lot of explaining to do when it comes to asphalt roofs.


The Advantage of an SPF Roof

SPF essentially stands for spray foam insulation and polyurea coatings. Polyurethane foam is applied as a liquid, creating a single monolithic membrane that covers the entire roof – no seams and no joints. The foam is easy to replace when stacks or other roof penetrations need to be added..
Flexibility: Foam can be sprayed onto virtually any surface, even irregularly shaped roofs. Roof mounted units, penetrations, curbs and parapets can receive a seamless monolithic application because SPF is spray-applied.
Lightness: Foam roofs typically weigh around 50 lbs per square, versus 800 lbs for a built-up roof and 1000 lbs. for ballasted single-ply roofs. This reduces the structural dead load on your roof.
Energy efficiency: SPF has the best insulating properties available for commercial construction today. The insulating foam keeps heat from penetrating in the summer or escaping in the winter, permanently lowering heating and air conditioning costs for most owners. SPF roofs are not for everyone, not every roof and if you plan to go from a standard roof to an SPF roof, you’ll need to get some seasoned help. Here are some of the reasons why you might want to consider an SPF roof.
  • Additional insulation is required.
  • There are severe temperatures.
  • The roof substrate has numerous penetrations.
  • The roof deck is an unusual configuration.
  • The roof is in an area where high winds are likely to occur.
  • Lightweight materials are required.
  • Slope must be added to provide positive drainage.

These are just three examples of cool roofs and the pros for each style. You don’t have to be a pro to replace a roof, but if you need some professional help, Remodeleze can help.


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