– Decks By E3. Ok, this is boring.  I am reading this blog for the good stuff.  Surprise me. Although AZEK Deck products are cooler to the touch than many other deck board products in similar colors, all decking products will get hot in the sun. The surface gets extremely hot in direct sunlight and susceptible to mold and mildew in shade. A common question that comes up is whether or not composite gets too hot in the summer to walk barefoot on. AZEK Deck/Porch is a PVC/polymer deck plank and not a wood/plastic composite. Lighter colored boards tend to be slightly cooler than darker composite boards. While there is a difference in the top out temperature with your darker color PVC products relative to the lighter colors, the difference is not as noticeable as it is with the composites. (My girls might think a lower temp as they are tenderfeet.) There's none that are going to escape the heat but in terms of which is going to stay hotter longer, and which ones gonna get hotter faster, that's what we're looking at with these. Let’s try something simpler.  I stole this from the internet just for you: “When you touch something hot, you don’t feel how hot the thing is; you feel how hot it makes your hand. And there's less of a difference with a polyvinyl again because it's not being truly absorbed. There is no reason to purchase decking that is going to be scorching hot … When you look at something like cedar it's going to have an open cell structure which is going to allow heat to get in there quicker. BR: Michael, tell us a little about yourself and your background. We have Ipe, Cedar, TimberTech, and Azek and all four were affected by heat in different ways. Check their lawsuit 3 years ago. In fact, the only regular maintenance that needs to be done is to gently clean it when necessary. We install a lot of composite decking as well as hardwood, cedar, and to a lesser degree, PVC. BR: So if you were comparing the four of these decking products next to each other under a heat lamp or in the middle of summer under the sun you may feel that the Azek is the hotter of the three but as soon as a shadow comes over it will immediately cool while the others could take minutes or hours to cool. Only wholesale big box store product that is even somewhat decent and at least better than any of the others, is Timbertech Azek. Hot enough to fry an egg?  Possibly, but….  The warmest boards I tested also use the most conductive materials (PVC and polyethylene), so the all-plastic deck boards will probably feel even hotter to your skin than their higher temperatures suggest.Â. There are a lot of other factors that go into purchasing a deck and choosing what products to use but this is strictly about temperature and heat absorption. In BTU / (hr ft ºF): acrylic is 0.20, and PVC is 0.19.  See: https://physics.stackexchange.com/questions/185997/different-materials-have-different-temperatures, ttp://www.designbuildersmd.com/blog/how-is-zuri-premium-decking-manufactured. A special thanks to little Konstantino, who helped to test a synthetic deck (TimberTech Tigerwood).  And, no, we did not burn him.  We photographed him on a cloudy day in the low 70s.Â, A. Azek: ESR-1667: http://www.icc-es.org/Reports/pdf_files/ESR-1667.pdf, B. DuraLife: https://duralifedecking.com/news/article/2017/7/25/whats-inside-composite-decking-matters/, C. Zuri: http://www.designbuildersmd.com/blog/how-is-zuri-premium-decking-manufactured, D. Thermal Conductivity: http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html, E. To better understand thermal conductivity, attend Kahn Academy for about 10 minutes: https://www.khanacademy.org/science/physics/thermodynamics/specific-heat-and-heat-transfer/a/what-is-thermal-conductivity, F.  Bill Nye, the Science Guy, addresses sidewalk cooking here:  https://www.livescience.com/37860-hot-enough-to-fry-an-egg-on-the-sidewalk-this-weekend.html. Azek Decking. Designed by Elegant Themes | Powered by Powered by WordPress.com.  The warmest boards I tested also use the most conductive materials (PVC and polyethylene), so the all-plastic deck boards will probably feel even hotter to your skin than their higher temperatures suggest.Â, Which decking should you choose?  All-PVC decking resists stains, mildew, and scratches, but it is hotter than cap stock with its composite core.  It can also be more expensive.  If your family will be barefoot much of the summer in warmer, sunny climates – Florida, Texas, Arizona, etc. Lighter colored boards tend to be slightly cooler than darker composite boards. I can’t explain what’s happening here.  I measured Brazilia in the sun to be 76º above ambient air, which agrees with, Here’s Fourier’s Law of Heat Conduction:Â, As I noted above, these surface temperatures are not the full story.  Thermal conductivity plays a role in how hot your deck feels. We often get asked what is the coolest decking in our low-maintenance options. Azek decks tend to get quite slick in rainy weather and around hot tubs. by Chris Marquand | Aug 2, 2016 | Blog.   That sounds like a term from physics.  Perhaps some physics will help us: Here’s Fourier’s Law of Heat Conduction:  The time rate of heat transfer through a material is proportional to the negative gradient in the temperature and to the area.  More clearly stated: OK,….that didn’t help.  Besides, I didn’t have any spare negative gradients hanging around when I measured the decking.  So if wood and metal are hot, the heat will flow more easily from the metal to your hand.” [4]Â,  That makes sense.  If you’ll agree that plastic conducts heat better than wood, we can move on to my chart of deck temperatures.Â, I’ve already mentioned some limitations – temperatures were taken on 80º days in August in Lexington, MA, just outside of Boston.  Don’t read too much into a difference of few degrees between two deck boards.  (My infrared thermometer’s error margin is about 2º. This week Ben Roberts was joined by Michael Rowland, a product expert at Gaiennie Lumber, and we talked about heat; specifically, heat as it pertains to your deck. AZEK Deck/Rim Joist Covers will have expansion and contraction with changes in temperature, unlike wood whose size will fluctuate with moisture changes. Cool.  The coolest deck boards are from DuraLife and TimberTech — the Landscape and. So the surface temperature of the board may be higher but it will cool down a lot quicker and take a while to heat back up. BR: So now let's talk about the composite. Composite decking is an excellent building material because it lasts longer than wood and looks great without staining, painting or sanding. They claimed that AZEK charged a premium for its advertised qualities which were supposedly better than competitors and paid between $4,200 and $18,500 for installation of their product. How hot does composite decking get? Learn how your comment data is processed.                                                        Or just wear…. Take note. The "Coolest" Decking Product: Temperature Test. The Fine Print. Polyvinyl looks like a bunch of microscopic ping pong balls so the air in there will help cool the boards while at the same time the polyvinyl prevents heat from being absorbed into the core. Although AZEK Deck products are cooler to the touch than many other deck board products in similar colors, all decking products will get hot in the sun. I measured surface temperatures with a Fluke 62 Max infrared thermometer.  Fluke claims it is accurate to 1.5%, which amounts to about 2º F. Real Heat.  A few years ago, a colleague measured some deck temperatures in central Texas, in the mid-day sun of early August, when it was 100º in the shade.  His results were consistent with mine, only hotter because the air was 20º hotter. Yes. MR: As far as the synthetic deckings are concerned the color has more of an effect on composites. The light weight all-PVC boards from Zuri, Azek, and Fiberon are the hottest.  But acrylic is clear and has a thermal conductivity value nearly identical to PVC. Be sure to subscribe to the TimberTown YouTube Channel and click on the notification bell to be the first to get the latest TimberTips video! BR: So if you were comparing the four of these decking products next to each other under a heat lamp or in the middle of summer under the sun you may feel that the Azek is the hotter of the three but as soon as a shadow comes over it will immediately … Unlike these and any other synthetics, however, it has an acrylic coating. Planning to renovate your pre-1978 house? MR: So all of the composites will be a composition of a wood species as well as high-density polyethylene. I have also stepped on friends' synthetic decks and did the hot foot hustle dance. AZEK decking is engineered to last longer than any other composite decking, with a natural hardwood look and feel. Are you feeling pressured to treat your pressure treated deck? So, does composite decking get hot in direct sunlight? Both AZEK and Trex decking gets hot … hotter than wood. So when it's absorbing the heat the darker colors will absorb more heat than the lighter colors. They call it Armor Allow Technology.. whatever that means. Because of the polyethylene, the board will get significantly hotter but will also hold that warmth for a longer period of time. [2] I can’t explain what’s happening here.  I measured Brazilia in the sun to be 76º above ambient air, which agrees with Zuri’s published “heat buildup” factor of 78º. If you live in a region that gets a lot of rain, or you’re planning on building a hot tub into your deck, then Trex boards with a wood embossed surface is a much better choice than Azek boards. MR: Most PVC decking is 100% PVC meaning there are no wood products in them. This site uses Akismet to reduce spam. – consider a wood deck or a patio.  Don’t burn your feet on PVC.Â. The material is also better which makes it skid resistant. Unlike Trex, Azek does not specifically warn its customers about using a fire pit on a composite deck. Hardwoods series from DuraLife and the Reliaboard from TimberTech. we will be buying more when the deck needs it. It is heavier than all-PVC but noticeably cooler (roughly 20º cooler). AZEK Decking Class Action Lawsuit. However, Azek gets a bit warmer, and that is because PVC does not disperse heat the way the natural substances present in Trex do so it can get a little less comfortable to walk on the Azek deck on sunny days with your bare feet. Trex decking does not typically get hotter than pressure-treated wood, although on a hot day with a blazing sun, nearly any surface will get uncomfortably hot. Azek Deck We used deckmax on an azek deck. BR: So let's talk about the wood products first, how are Cedar and Ipe going to be affected by the sun and the heat in the summertime? Does composite decking get too hot? If you want the coolest decking product you probably want to go with a light color Azek.  But acrylic is clear and has a thermal conductivity value nearly identical to PVC. High-quality modern composite boards don’t become hotter than traditional wooden deck boards. Unlike wood boards, AZEK decking does not need to be sealed or stained.  Ironically, these are old technology composites, with core material that is a combination of wood fibers and plastic.  Why is this old technology cooler?  Well, wood holds and conducts less heat than plastic.  The newer, all-PVC boards perform better — resist food stains, mildew, and scratches better — but they are hotter.  My temperature readings show this, and the published values of thermal conductivity endorse it. One thing we found was the Trex deck in sunlight gets very hot, so you can't walk barefoot on it. It will heat up quicker but it will also cool down quicker, so it's not going to reach as high of a temperature as a denser species like Ipe. we applied it in may 2010 and it still looks good. How is that composite going to compare to the wood fibers? Given particular environmental conditions of moisture and temperature, mold and mildew can appear on any outdoor surface. It is low-maintenance, very durable and doesn’t get too hot in the West Coast sunshine. BR: It's important to note that if its 100 degrees and you're in Texas like we are there all going to be hot. Having a deck that is uncomfortable on your feet can be quite inconvenient especially if you have a pool and plan on walking on the deck while using the pool. SYNTHETIC DECKS: No Maintenance, Low Maintenance, Mo’ Maintenance – What care will your synthetic deck need? You may be able to save time and money by using AZEK Deck to simply resurface your existing deck structure instead of starting over from scratch. Best heat dissipation.Whatever decking boards you use, your deck will get hot in the sun. Will AZEK Deck get mold on it? Excessive heat from Low-E glass is potentially a problem for composite decking made by any manufacturer. We applaud Azek for making customers aware of the issue. That said, plastic decking does have its disadvantages. While early composite decks were very sensitive to temperature and did get notoriously hot, any new composite decking will be much more resistant to heat. Like Trex, Azek decking comes with a natural wood grain and multi colored surface for a … So even after sundown, your composite deck will hold that warmth for a couple of hours. E. To better understand thermal conductivity, attend Kahn Academy for about 10 minutes: We at Archadeck of Suburban Boston offer professional design and build services for clients west and north of Boston.  Over the past 27 years we have designed and built over 1,000 projects.  We have enhanced the depth of our expertise by limiting our work to decks, porches, sunrooms, and patios.  To view some of these projects, visit our, http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html, http://www.icc-es.org/Reports/pdf_files/ESR-1667.pdf, https://duralifedecking.com/news/article/2017/7/25/whats-inside-composite-decking-matters/, https://www.khanacademy.org/science/physics/thermodynamics/specific-heat-and-heat-transfer/a/what-is-thermal-conductivity. Oh, can you fry an egg on a deck?  That depends on how well-done you like your eggs.  Eggs begin to cook at 130º and the whites harden at 158º.  But an egg would partially shield the deck from the overhead sun, so you’d need air temps of maybe 100º.  Then, if a Zuri deck  in Arizona or Texas reached 170º or 175º at mid-day, you could enjoy a late breakfast. BR: So how does that differ from PVC products like Azek? Yup.  I summarized the test results in the table further on.  But first permit me a few observations. Is there a decking product that can beat the summer heat and not burn your feet? Although composite and pvc decking does get hotter than treated decking at the temperature tested, a lighter color of the man-made decking comes close to the same temperature as a darker color on the treated stained wood for the 86 degree day tested. Options for restoring your PT deck. Decking seems to be uncomfortable for me when it gets upwards of 150 degrees.  Metal conducts heat more easily than wood. The 5 factors you need to know that determine a deck’s cost, 8 Pros & Cons of 5/4 treated Decking Plus Things to Consider – Decks By E3, Is Cedar or Composite Decking Better with Dogs? )  Instead, consider the larger variations — 10º and more – among different manufacturers’ series.Â. It’s just a much better product in every way than it used to be. That’s why we developed a heat resistant composite decking solution. So another area I want to talk about is color. Even if you aren’t in California, Redwood decking is a great choice that will turn your deck into a statement piece. Lighter colored boards tend to be slightly cooler than darker composite boards. Even in the most extreme cases, it is tolerable. Additionally, the darker the decking color, the hotter it will … Today’s PVC decking brands like Azek, which is owned … It’s because of this resistance that Azek is the clear winner. Posted by bostondecksandporches | Aug 30, 2017 | Decking, Plastic decking, PVC decking, Synthetic Decking, Technical, Wood decking | 0. BR: So there you have it. PVC is a little hotter than your wood decking but significantly cooler than your composites. We at Archadeck of Suburban Boston offer professional design and build services for clients west and north of Boston.  Over the past 27 years we have designed and built over 1,000 projects.  We have enhanced the depth of our expertise by limiting our work to decks, porches, sunrooms, and patios.  To view some of these projects, visit our website.  To learn how we treat our clients, check us on Angie’s List or read a recent article about us in Remodeling Magazine.  For a free design consultation and a relaxed and rewarding design and construction experience, contact us via e-mail, subboston@archadeck.net or by phone, 781-273-3500. Indeed, the warmest deck boards are also the lightest. we found it on the internet, used it and it worked great. Do your research to anyone who’s reading and I hope this helps. A special thanks to little Konstantino, who helped to test a synthetic deck (TimberTech Tigerwood).  And, no, we did not burn him.  We photographed him on a cloudy day in the low 70s. This is by no means a criticism of Azek composite decking. Hot surface: Probably the top complaint about composite decking is that it tends to get very hot in direct sunlight. Cap stock has a composite core — wood mixed with plastic. Some negative reviews on Decks.com report that greasy spots on the decking are hard to remove and that power washing damages the deck finish. It’s not a true PVC deck board however it is Vinyl. Hot.  The warmest boards are Azek Vintage and Zuri.  Azek’s Dark Hickory (which is pretty dark) reaches nearly 144º, and Zuri’s Brazilia is the winner at just over 156º.  Wow, let’s not set this little guy down on Brazilia: Its core material is PVC, like Azek and like Fiberon’s Paramount.Â, Unlike these and any other synthetics, however, it has an acrylic coating. MR: Primarily you want to look at the cellular structure of the woods. 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