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Residential Metal Roofing: Is It Right for Me?

When the contractor delivered the sad news that my roof needed replacing, that led to a discussion of material choices. I was surprised to hear that metal roofing was an option. Sure, it was fine for commercial buildings, but a home? My contractor told me that metal is used for homes more than people realize. The panels can be designed to look like just about any type of roofing you can imagine. After looking at some samples and finding out about the long life of metal roofs, I decided to give it a try. Fifteen years later, my roof is still in great shape. If you are facing a roof replacement in the near future, let me tell you more about metal roofing. I'm betting that you'll decide this solution is right for your home.

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Residential Metal Roofing: Is It Right for Me?

3 Complications That May Arise When Applying Roof Coatings

by Kelly Murphy

Roof coatings protect roofs from both moisture and ultraviolet (UV) damage. However, the protection is only available when a coating is properly applied. Here are three complications that may interfere with correct coating application and deny you the benefits:

Improper Mixing

A good roof coating starts from the mixing stage; you need to mix the formulations in their correct. Don't forget that coatings are made from different chemicals that have different densities. Therefore, even if the manufacturer got the ratios correct, you can't be sure that the coating at the top of the container will contain the right proportions of the chemicals as the coating at the bottom by the time it arrives at your home. Therefore, you need to mix the coatings thoroughly before applying it.

Wrong Thickness

Both extremely thick and extremely thin roof coatings have their disadvantages. Inadequate (thin) coatings will not offer adequate protection to the roof, especially after you have taken into account the volume that will evaporate off the roof immediately after the application. An extra-thick coating, on the other hand, will deform prematurely because the inner layer (immediately on the roof) will dry at a different rate to the outer layer. When the outer layer dries before the inner one, it will trap escaping moisture from the inner layer, leading to deformations such as wrinkles and blisters.

 Therefore, it's important to apply coatings at their correct thickness, which depends on the type of coating being applied. For example, acrylic white coatings should not be more than 1mm thick.

Effect of Weather

Lastly, the prevailing weather may also mess up your coating application. Ideally, roof coatings should be applied in dry and warm weather. The ideal temperatures range between 40 and 50 degrees Fahrenheit; anything higher than that and the outer layer of the coating will dry too fast, leading to the problems discussed above. Applying a coating in cold or wet conditions interferes with its drying, which leads to imperfections. This means you need to schedule your application for the right day taking into account weather forecasts.

It's clear that applying a roof coating isn't as easy as getting a roller and climbing onto the roof; there are things you need to get right. Therefore, if you have been thinking of DIY application, think again if you have the expertise and skills to do it. For example, how do you plan on getting the thickness right? Just get a company like Dodge Foam & Coatings Inc. to handle the application if you aren't confident in your skills.