The higher the elongation value, the more suited a coating is to endure the normal expansion and contraction of a roof structure without cracking, thinning, or peeling off. Tensile strength is the amount of pressure a material can withstand before it breaks. Depending on chemistry type, most elastomeric coatings rate anywhere from psi pounds per square inch. Elongation and tensile strength are closely related but in an inverse direction.
As one increases, the other decreases. The best commercial roof coating formulas balance the two properties to provide a strong, durable membrane that can adequately stretch and move with roof surfaces. Permeability, or perm rating, is the state or quality of a material or membrane that causes it to allow liquids or gases to pass through it.
This value varies greatly depending on the type of coating. For example, acrylics have a high perm rating, meaning they are very breathable. Silicones, on the other hand, have a lower perm rating meaning they have superior resistance to moisture transmission. Reflectivity measures the amount in which a material can reflect light. This property is usually represented as a decimal between 0 and 1, with 0. Solids by volume is the measure of how much solid material will remain after a substance has dried.
Understanding this property is critical in order to properly achieve the required dry film thickness specified for certain coating systems. While it has no bearing on the performance of a coating, this particular property is certainly worth some consideration.
Though the physical properties highlighted above are the most notable in terms of performance, there are other data points to consider as well. For a complete overview of the physical properties for American WeatherStar products, click here to download our full roof coating comparison chart.
Ultimately, the performance of a commercial roof coating depends on a variety of factors. Each chemistry has its own unique set of strengths and weaknesses. Things like roof type, age, environmental concerns, aesthetics, and more must be taken into account before deciding on a suitable, long-term solution. Having a solid plan for commercial roof maintenance and repairs is critical to keeping your roof strong and preventing premature roof failure.
Many maintenance and engineering managers have been misled about fluid-applied roof coating systems, and have developed a series of myths and…. Cool roofs are on the rise due to an increased recognition that cool roofs can help your building or home be more comfortable and…. We use cookies from third-party services for marketing activities and to offer you a better experience. Read about how we use cookies and how you can control them by clicking "Privacy Preferences".
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Stop leaks, improve performance, and save money! Which Roof Coating Performs Best? The Benefits of Roof Coatings Elastomeric roof coatings have been around for a long time. Costs Less Roof replacement can be quite expensive. Extends Life Perhaps the best-known quality of an elastomeric coating system is its ability to extend roof life. Reduces Energy Costs Coating your roof is a great way to improve the energy efficiency of your building.
Before coating application After coating application Improves Sustainability In recent years, the demand for more sustainable roofing solutions has grown considerably due to more stringent environmental regulations and building codes as well as increased concern for the environment. Common Types of Roof Coating Choosing the best coating for a particular roofing environment depends on a variety of factors such as roof type, age, weather conditions, environmental concerns, aesthetics, etc.
Acrylic Acrylic roof coatings are among the most durable and inexpensive elastomeric coatings in the industry. Asphalt Emulsion Another widely used roof restoration material is asphalt emulsion. Are they actually useful? Is the roof going to be a problem? Because of the numerous variables that can affect a lifespan, they should be used as rough guidelines only, and not relied upon as a warranty or guarantee of future performance.
Electrical Receptacle Outlets. Top 5 results given instantly. McGarry and Madsen's home inspection blog for buyers of. Recent Blogs What is the average life expectancy of roof flashings?
Water Heaters. Water Heater Age. Septic Tank Systems. Structure and Rooms. Plumbing Pipes. When It First Became Code. Park Model Homes. Shingle Roofs. Wind Mitigation Form. Roof and Attic. Pool and Spa. The spray foam expands to fill and level the depression in the roofing surface. The spray foam adheres to virtually any roofing surface to create a seamless covering over the depression. Once the spray foam cures, an elastomerics coating is often applied as further protection against water penetration.
This means your formerly popular ponding spot is now on level with the rest of the surrounding roof. High winds, extreme temperatures, snow, ice, and rain can place a beating on any roofing surface. How do we know if elastomerics are up for the task? Fact: Elastomerics are monolithic, adhesive, and designed to take on any weather.
Since elastomerics are flexible and acrylic-based, they adhere well to virtually any roofing substrate. By applying elastomerics over spray polyurethane foam, it creates a dual-compound, two-layer roofing solution that is seamless and chemically bonded together.
In fact, elastomerics are some of the most well-known roof coatings to withstand hurricane-force winds and debris in the Gulf Coast. Elastomeric roof coatings need to be applied in at least two applications, sometimes three in certain situations. Elastomerics are breathable, so they do let some moisture particles through their material but only a minimal amount. Since elastomeric acrylics are typically water-based, they are environmentally safe with low VOC levels.
Elastomerics are known for preserving roofs from the long-term damaging effects of thermal heat. When it comes to St. We can work with you to inspect your roof, identify potential problem areas, and create a customized roof maintenance and repair program to keep your roof healthy and strong for years to come.
Follow this link to send us a message and start a conversation today! Email Us p: f: Thank you! Eric and crew were really nice to have around. They were courteous, careful and caused little if any disruption. Their work looks good too! To be honest… a good experience with a product that I initially had misgivings about. Thank you. It is certainly nice to have the drips and rivers gone from the shop when it is raining. I also wanted you to know how much we appreciated that the guys were able to stay out of our way and allowed us to do business as usual without any problems or interruptions.
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