Roofs must also tolerate foot traffic resistance. The coating must be able to tolerate that kind of movement at roof temperature, and high temperature, in the summer, low temperature in the winter. But if he’s going to be applying the coating until later in the afternoon, and the temperature is going to drop to the mid-20’s, there may be a serious problem with freezing. It protects your roof from the elements while significantly reducing energy costs. Another important consideration for the successful application of these elastomeric roof coatings is that the adhesion of the coating is only as good as how mechanically sound the substrate is. An acrylic elastomeric roof coating is not a paint. The roof must be able to withstand foot traffic and the abuse from maintenance and repair crews. So the key thing here is the right acrylic for the right job. One of its most attractive qualities is its ability to apply smoothly on rough, textured surfaces. Consider a warm August afternoon where there are afternoon thunder showers. It adheres to the surface on its own, without the help of … Range of application options Our Acrylic Elastomeric Coating – 8101 has been designed to be used on a broad range of materials, including concrete, masonry, stucco, and any other materials for which the aesthetic appeal of the roof is a leading consideration. Suspend all application if conditions prevent a complete cure before sunset, rain, fog, dew or freezing temperatures. The black shingled roof will have to be replaced before the white. By contrast, if the humidity is very low such as Phoenix AZ in the summer the coating will dry in 1-2 hours. But, caulks and sealants don’t require resistance to standing water, impact resistance, or reflectivity properties. But, unlike those materials, it has no seams. This is the surface temperature, which tends to be 5 to 30oF lower than the black roof temperature. Click here to schedule a free roof inspection with an American WeatherStar Approved Contractor. The cost of acrylic coating will be between $5 to $6 per square foot. The surface temperature was measured using the infrared thermometer of the black asphalt shingle exposed to sunlight. Just as a house paint would not be applied to chipped or peeling surfaces or mold spores, an elastomeric roof coating would not be applied to a substrate that wasn’t mechanically sound free of debris, dirt, and powdery degraded roof substrate. When that same acrylic polymer is formulated into a roof coating and the UV transmission is measured, there is no transmission. They can be applied just like a house paint, by spray, by roller, by brush, by squeegee. The slide below compares time of day on the horizontal axis and watt-hours on the vertical axis. To this end, an actual side by side study was conducted where three homes, semi-scale houses were built, each with different design parameters, each heated and cooled with a heat pump, and each monitored with some extensive telemetry on a 15 minute basis over the course of one year. Acrylic coating has to comply with a unique set of performance criteria, including: Flexibility at low temperatures. Acrylic roof coatings are highly reflective and UV resistant. The primary purposes of roof coatings are: resaturation of old roofs to extend the service life of the roof, reflectivity to create a "cool roof", and toughness to provide a wearing surface on the roof that can resist abrasion from foot traffic or other physical damage, such as from hail. Caution: EnergyGuard Acrylic Elastomeric Roof Coating is a water-based product which will freeze and become unusable at temperatures below 32°F. In the slide below the surface temperature of a number of different roofing materials were measured as a function of the time of day. This elastomeric coating can be formulated with fire retardant pigments to reduce the burning effects on the roofing system. Model #891120920. Arrives before Christmas. elastomeric roof coatings acrylic coatings. The sunlight strikes a polymer, such as asphalt, the asphalt absorbs some of the radiation, and the polymer begins to vibrate, and break up into smaller pieces. These roof coatings can provide some restoration to an aged roof. There are two types of polyurethane roof coatings: aromatic and aliphatic. That’s why the term formed in-situ on the roof is used. Not only are they more cost-effective than other coating chemistries, but they’re also highly…. polybrite ® 71-hs. However, six months later, there’s a brown chalky residue. It’s also the best solution for custom-tint roof coating applications and comes available in a variety of custom colors. There is a second benefit here also. Another advantage of acrylic roof coatings is that they are easy to apply. These coatings are applied 5 to 10 times thicker than a house paint. Acrylic coatings have VOC (Volatile Organic Compound) levels almost 3 times lower than silicone competitors, and also have much less odor given off. First it reduces the temperature of the roof membrane to which it is applied. Roofs are dynamic environments, meaning they expand and contract. But, it’s a very different material based on a different class of acrylic chemistry. Fire Rating. The slide below shows a test called spread of flame conducted at Underwriters Laboratory in Chicago. There are some important factors to consider when it comes to choosing this particular chemistry. Below, we examine some of the key strengths and weaknesses of an acrylic roof coating. For better results, use a trowel or roof brush to apply patching compound. The house with the roof coating costs for coating and labor were $135. This created the advent of the acrylic latex waterborne house paints. Typically, the thickness of an exterior house paint is 3 mils, .003 inches. Dicor’s EPDM Roof Acrylic Coating extends the life and beauty of your rubber roof membrane by forming an excellent protective barrier with its elastomeric (elasticity and flexibility) feature The coating provides superior resistance to harsh weather and ultraviolet light and has great fire retardation characteristics This is the degradation that is associated with the harmful effects of sunlight. This is topped with a white acrylic elastomeric coating containing fire retardant pigments. A Silicone Restoration Membrane (SRM) is a fluid applied silicone coating sprayed directly onto an existing roof system. Acrylic elastomeric roof coatings refer to a liquid-applied monolithic (seamless), fully adhered, elastomeric membrane thats formed in situ on the roof. 80oF difference versus 10oF difference. It’s a mockup of a roofing system four feet wide, 12 feet long; there’s a slight incline to the mockup. The study generated energy use and weather data for one full year. For elastomeric roofing applications, these would be 15 to 30 mils. As a water-based substance, acrylics are easy to work with and install. The building No. EPDM is often 45 mils; Hypal… Horizontal axis is time of day. These types of coatings are now used on a variety of roof membrane surfaces, including single-ply membranes and metal systems. Acrylux’s Roof Mastic product advertises a VOC of around 75 g/L compared to a comparable silicone coating being listed as 240 g/L. These types of materials are typically used in combination of base coat and top coat. Today the technical requirements for a successful roof coating are fully understood. Minimizing the sun’s impact on the roof surface not only helps sustain lower energy costs as the system ages but also cools internal building temperatures and extends service life. polybrite ® 55. elastomeric roof coating for spf. It’s 3:30 in the afternoon and that black asphalt shingle has a surface temperature of 160oF, then a. thunder shower occurs. A fire test, according to a standard specification UL790. Reflectivity and dirt pickup resistance were mentioned earlier. For an average 20,000 sq. They are also a serviceable solution for a variety of conventional flat roof substrates including modified bitumen, single-ply, EPDM, built-up roofs, and spray polyurethane foam. The aromatic coating is used as a base coat material because it’s durable but does not offer high UV resistance. This coating is a premium, elastomeric, water-based acrylic latex coating. 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