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Thermal Shock and the Impact on Roof Systems

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Thermal Shock and the Impact on Roof Systems

17 273 May eNews Banner2

Weather and daily temperature variations are a challenge to your building and its roof. Concerns for your roof specific to temperature extremes exist if you are located in sunny South Florida, frigid Alberta, Canada or anywhere in between. As daily cooling and warming cycles occur, your building and its various components expand and contract.

Roof temperatures can change from over 150 degrees on a hot summer day to 80 degrees after a thunderstorm. Temperatures can easily rise or drop dramatically over a 24 hour period during each of the four seasons. In the roofing industry wide temperature variations are referred to as Thermal Shock which places substantial stress on your roof.

Why does the expansion and contraction of materials matter? Simply put, all materials expand and contract at different rates. The roof deck, structural walls, nailers, metal edges, roof vents, pipes, drains, curbs for HVAC units, electrical lines, roof insulation and other materials are exposed to the temperature changes to different extents. Because these components are made of different materials they expand and contract at different rates. The function of the roof membrane is to be able to react to these factors and provide a watertight barrier. Large temperature changes make that a complicated and difficult task.

As winter turns to spring, you need to pay attention to the condition of your roof. Think about the thermal shock that the roof is exposed to daily. Consider the fact that for every dollar invested on roof-related preventative maintenance, it is estimated that you can save five dollars in re-roofing costs. With Spring, there is no better time to request a free roof evaluation to determine how Winter weather affected your roof and how you can extend the life of your roofing asset.


Schedule Your Re-Roofing Project Now - Winter is Right Around the Corner

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Schedule Your Re-Roofing Project Now - Winter is Right Around the Corner

Winter is right around the corner. Yes, we prefer not to think about it or to say it aloud in the middle of summer. But, if you have a roofing project that needs to be completed by winter, it’s time to get that project on the schedule. 

Denver's Green Initiative for Commercial Roofing

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After a city and county ballot initiative passed in Denver, CO, a Denver Green Roof Initiative went into effect January 1, 2018. This affects commercial roofs with a gross floor area greater than 25,000 square feet. The Initiative requires that building owners have a percentage of the roof covered with vegetation (green roof) and/or solar power.

Beat the Spring Rush with Your Roofing Project

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18 165 March eNews Banner

Spring is right around the corner and that means peak roofing season. So you might be asking yourself, when is the best time to initiate your roofing project? The answer to that varies based on the size of your project and the backlog of the contractor you are using.

The Impact that the Recent Tariffs Have on Your Roofing Pricing

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18 165 ArticleImages RoofTariff

Due to the recent tariffs imposed on steel and aluminum, prices will escalate until the United States plants are able to produce the needed supply.

Beat the Spring Rush with Your Roofing Project

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18 165 March eNews BannerSpring is right around the corner and that means peak roofing season. So you might be asking yourself, when is the best time to initiate your roofing project? The answer to that varies based on the size of your project and the backlog of the contractor you are using.

Roof Coatings - Extending the Life of Single Ply Roofs

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IMG 1793 WithSKY72resRoof coatings are one of the keys to help extend the life of any roof system. A building may need a new roof; but, coatings may be a viable option to extend the roof for five to ten years, along with the addition of a roof warranty for those years.Roof coatings are one of the keys to help extend the life of any roof system. A building may need a new roof; but, coatings may be a viable option to extend the roof for five to ten years, along with the addition of a roof warranty for those years.

Improve Insulation. Save Energy. Decrease Heating Costs.

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SPFUse SPF Insulation on the Roof and in the Walls

Your goal is to insulate your roof and building envelope to save energy costs. Spray polyurethane foam (SPF) is an insulating, energy-efficient solution for your roof and walls.


White Roof or Black Roof?

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White Roof or Black Roof?

There is more to consider to selecting a roof membrane than color...

CentiMark Takes Madison, WI for Low Slope Roof System Course

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CentiMark Takes Madison, WI for Low Slope Roof System Course

Around 20 CentiMark sales and marketing associates braved the frigid Madison, Wisconsin weather to attend The University of Wisconsin’s (UW) continuing education training for low slope roofing from December 2nd through 4th.

Getting to the Heart of the Matter...

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Getting to the Heart of the Matter...

A good friend of mine is also a successful roofing contractor. Recently, he needed heart surgery.

2016 Roofing and Flooring Trends

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2016 Roofing and Flooring Trends

Roofing Products and Product Development

Perhaps the most significant change in the industry is that over the years, preference for roofing materials has shifted towards white TPO/PVC membranes. The reflectivity and energy efficient roof systems continue to gain popularity.

Changes in Codes and Testing Requirements

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Changes in Codes and Testing Requirements

Code changes are very complex, some take years for compliance and all are best left to discuss with your professional roofing contractor. Roofing codes are found in Chapter 15 of the International Building Code which is part of a family of codes from the International Code Council (ICC). Each of these codes are revised every three years before being promulgated. It is up to each state to decide which version of the code they wish to adopt and the adopted version may vary from state-to-state.

CentiMark Gives Gas Monkey Garage a Commercial Roof Makeover

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GasMonkey

6 Weeks + 8 Men + 33,608 square feet of retrofit over metal = one awesome garage.

Last month, CentiMark’s executive committee took a trip to meet Richard Rawlings’ and check out some of his sweet rides at Gas Monkey Garage. After getting to know our business, Richard hired CentiMark to perform some service work on his roof.

CentiMark’s Steep Slope Shingle Capabilities

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June2016BannereNews2

CentiMark has recently expanded our steep slope capabilites to include shingles. The steep slope products now available include; asphalt shingles, tile, slate, cedar shake, cedar shingles, metal and composites.


Safe Roof Series (Part 4): Roof Hatches

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Safety and Roof Access Hatches


What are Roof Access Hatches?

Many roofs, especially low sloped roofs, are accessed via a fixed ladder or stairway leading to a roof hatch or scuttle. Most hatches are equipped with a hinged lid that has pistons or springs to assist in opening the lid along with a locking mechanism to keep it open. These fixed ladders and hatchways make climbing onto a roof more convenient than using an extension ladder.

How To Select the Right Roofing Contractor

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ChecklistIt’s amazing to see the number of buyers who purchase roof systems with the primary consideration being the type of roof system that will be installed. So little time is spent on selecting the contractor installing the roof system!

Are you asking yourself if you should repair or replace your building’s roof?

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This is a question many building owners struggle with. The answer varies depending on each situation. Understanding the type of roof assembly and the existing condition of your roof is important to make a good decision.

Roof Performance Series (Part 2): Thinking Outside the Seams With Your Welding Options

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5 2Commercial Roofing Options Have Changed with The Times
As with every industry, commercial roofing is rapidly evolving to meet changing market demands. When it comes to installing a new thermoplastic ( TPO or PVC) roofing system, facility managers now have more options. Most thermoplastic roofing systems are mechanically fastened to the structural roof deck using screws and plates or oversized washers. However, a great option called RhinoBond has been gaining traction in the commercial roofing industry for nearly a decade.

Roof Performance Series (Part 3): Don’t Forget the Drains

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Experienced facility managers know that re-roofing projects are time consuming and involve many important decisions. These include the type of roof system, method of attachment, type of insulation, amount of repair work to the existing deck and, of course, what edge metal system to use. An often overlooked but important detail during the planning stage of a re-roofing project is also ensuring that the project includes a high performing roof drainage system.

Having adequate drainage plays an important role in the life of the roof. When originally designed, the roof drainage requirements would have been calculated and the number and placement of drains on the roof should reflect that calculation. Your roofer, or specifier, can verify how many drains you’ll need, but a good rule of thumb is two for the first 10,000 square feet (and smaller roofs), plus one for each additional 10,000 square feet and no more than 100-feet apart. Consult an engineer to review your roof drainage system, especially if there are any structural changes to your roof or adding an adjacent wing or addition to your building.

Making sure that all the water drains from your roof is very important. The National Roofing Contractors Association (NRCA) defines standing water as any water on a roof that hasn’t drained or dissipated within 48 hours after rainfall or other precipitation. Left unaddressed, standing water can cause several problems. First, water is heavy. Five gallons weighs nearly 42 pounds and an inch of water over a 10 x 10-feet. area weighs over 500 pounds. Second, standing water can deflect the roof deck over time, which can lead to roof leaks and even roof collapse. If your roof has several low areas where water ponds, consider adding tapered insulation during re-roofing to aid in roof drainage.

Keep it CleanAs a building owner, you are responsible for maintaining the roof. Today’s advanced roof systems typically don’t require extensive maintenance but keeping drains free and clear is something to check frequently. Good roofing practice is to inspect your roof at least twice per year -- quarterly is even better -- and before and after major storms. Remove the strainer to ensure drain leaders are free and clear. Also remove leaves and other debris built-up around the outside of drains and scuppers so that water can flow freely.

Three OptionsAssuming that the drainage system is sufficient, there are three choices when it comes to the drains during re-roofing. Rework the drains, remove and replace the drains or retrofit the drains.

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