Roof Proposals – What to Keep an Eye Out For

Making sense of roofing proposals from different contractors offering varying solutions can be very daunting. Just understanding the myriad of solutions can be difficult enough without adding in products, terminology, etc. What makes it extraordinarily difficult, in my opinion, is when proposals are vague. In flat commercial roofing, there are a few key points to keep an eye out for in a quality proposal. They are: Tear Off or Go Over: If there are two or more roofs, or if the underlying insulation is wet, a tear off is generally required. If one roof is in place and only a few areas are wet, then the wet areas can be replaced on a limited basis. However, in flat commercial roofing, there is a big cost difference between removing the existing roof system and going over it. Therefore, it is very important to know what solution your contractor is proposing. Insulation Thickness and “R” value: Typically, in a go-over application, a minimum of 1” polyisocyanurate insulation or ½” HD polyisocyanurate insulation is used as a separation between the old roof system and the new roof system. However, if a full tear off is being completed, building code typically requires that the insulation be brought back to code. In 2020, this could mean installing 4.5” to 5.2” of insulation, depending on what building code calls for in […]

Roofing Materials Compared For Lifespan And Durability

Lifespan and durability are not the same for all roofing materials.  Without getting service from a roofing material, what is the point of your investment? When looking for a replacement roof, or choosing a new one, take time to investigate these two qualities. The short time spent looking at your alternatives may save you a lot of money in the future. There are many roofing materials available, so making the right choice may not be easy. When you know what you are looking for, then the decision becomes a simple one. To help make that decision take a look at your alternatives. TPO is one choice TPO has proven to be good on flat roofs. It is easy to apply and a cheaper alternative to other roofing materials. The lifespan of TPO is around 20 to 30 years, depending on the thickness of the membrane and how it is installed. A significant factor in the life of TPO is the quality of the material, which can vary from manufacturer to manufacturer. Always insist on top-quality TPO from a reputable manufacturer like Carlisle, Firestone, or GAF. Additionally, spend the extra money on the thicker 60 mil or even 80 mil TPO. The extra thickness will add years to the lifespan of the roof. TPO is durable and does not corrode. TPO is typically heat welded where […]

TPO versus EPDM: which system is better?

One of the most common questions we get is: Which roof system is better, black “Rubber” EPDM or white “Thermoplastic” TPO? Both are similar in price, both come with 15-30 year warranties, both are made by reputable manufacturers, and both are widely installed throughout New England.  So that begs the question, is one roofing material actually better than the other? Key Differences In my view, neither roof system is definitively better than the other. However, they do have key differences that may have an impact depending on your building. These differences include: Heat and UV Resistance: When it comes to heat and UV resistance, EPDM is the superior product. As a general rule, EPDM can reach temperatures of around 180 to 200 degrees, whereas TPO can only reach temperatures of around 140 degrees. This can make a difference in buildings that have a high heat output or a lot of dark, high heat surfaces surrounding the building. Grease and Oil Resistance: TPO is far better with food byproducts, such as grease and oil. Grease guards should always be used, and neither system is warranted against grease, but TPO will hold up much better than EPDM in the event of a leakage or fluid backup.  Puncture Resistance: In my view, both products have similar puncture resistance. However, many of the manufacturers are starting to provide puncture […]

Variety Of TPO Manufacturers Leads To Varying Results

Thermoplastic-polyolefin, otherwise known as TPO, is an excellent roofing material. There are a lot of manufacturers bringing TPO to the market, but few supply the top quality. At Chaffee Roofing, we are all too aware of the differences in quality TPO available. By having only the best suppliers, we guarantee that our customers get superior materials.  We also visit a lot of TPO manufacturers to keep up-to-date with changes in the product. Recently, we looked at samples of TPO, to see where the differences lie. What problems come from poor quality TPO We love TPO and use it daily, knowing that our customers are getting a quality roofing product.  Poor quality TPO can lead to such problems as seam failures, where the seams lift or split where they meet. Another issue we see is the TPO cracking under pressure from hot or icy conditions.  Similarly, poor quality TPO can look “chalky,” which is when the top layer of TPO basically breaks down and starts to wash away. Less reputable manufacturers may bring out a new version of TPO without testing it thoroughly. In these cases, you as the customer could be the guinea pig. In contrast, quality, well-made TPO tends to be pretty consistent. While small changes may be made here and there, the product itself remains pretty consistent. Different formulas lead to varying qualities […]

PVC Versus TPO – What is the Difference?

PVC Versus TPO TPO and PVC have a lot in common. Both are heat weldable roof systems that are typically white in color and have been around for a while. Their specifications are also similar and both roof systems come with warranties varying from 15 – 30 years in length. In addition, most manufacturers can make TPO and PVC in a variety of colors, sometimes even custom colors. So what’s the difference? Polyvinyl Chloride, PVC, is known for being one of the original single-ply roof systems and is typically a rigid product. It was first introduced to the United States in the 1970s and initially had a bad track record. Think of a PVC pipe or PVC trim on a house: that is PVC in its natural state. However, in order to make PVC flexible, plasticizers are added to the membrane. Problems can occur from the addition of these plasticizers when they leach out of the membrane in a process called “plasticizer migration.” This causes the PVC membrane to shrink, shatter and crack over time. In fact, some of the first generation PVC roof systems, which were not reinforced, would completely shatter like glass.  Today, modern PVC roof systems manufactured by reputable companies have greatly reduced the problem of plasticizer migration. In many cases, this problem has been reduced from entire roofs failing to just […]

Installing A Greener Commercial Roof For Your Business

Installing A Greener Commercial Roof For Your Business Installing a greener commercial roof for your business will save you money. Isn’t that nice to hear when you are considering your roofing options? The good news continues as the long-term savings can be substantial. Less heat loss, better heat reflection, and more control over running the AC will put more money in the company’s pocket over the years.At Chaffee Roofing we know the benefits of installing a greener commercial roof. Clients appreciate the quality of our work and make use of Chaffee Roofing’s many decades of experience. We use our knowledge of greener roof materials to determine which one will work best on your roofing project. This is why we believe TPO is the best commercial roofing material to enhance your green credentials. Let’s take a closer look behind our reasons. TPO is white and reflects the heat In our New England climate, you could be running the air conditioning from late spring to early fall. Energy use is a big enemy of the environment, and the HVAC is a significant expense in any company’s budget.TPO is available in white, which will reflect the heat. The less heat absorbed from the sun, the less you need to run the AC. This can be significant with a large commercial roof. Also, by reflecting the UV rays of […]

What Makes TPO Stand Out Among Other Rubber Roofing

Flat rubber roofing is the perfect solution to commercial, flat roof problems. It is durable, easy to maintain and will last for many, many years. At Chaffee Roofing we always have clients asking us to recommend a flat or rubber roofing product for their commercial roofs. Thermoplastic Polyolefin (TPO) is almost always discussed. We put together this post to show why TPO stands out among rubber roofing varieties. Top reasons TPO stands out as a rubber roofing solution are: Low-cost, yet high quality White color reflects the sunlight It has heat-welded seams and flashings, the strongest technology in the industry Resists the growth of mildew and corrosion Let’s take a closer look at each point. Low-cost, yet high quality A big appeal for any roofing project is the cost of the raw material. TPO is the least expensive flat or rubber roofing material on the market, sometimes by a decent amount depending on what other products are being proposed. When you are doing a commercial installation, involving a large roofing area, the lower cost can be very attractive, especially since you are typically receiving the same warranty as competing products. Low cost does not mean low quality. TPO is a top-quality roofing material that has been around for over 40 years. White color reflects the sunlight A big problem for many companies is that a […]