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Thermal Shock and the Impact on Roof Systems

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.


Request a Free Roof Evaluation


Understanding the Obligations of Your Roof Warranty

WarrantyIt is important that you understand what your warranty covers, who is responsible and how you are protected. Here are some things you should know about your roof warranty:

•  What is covered? Is it materials only, workmanship or both?

•  Term of the warranty? How long is the warranty, can it be extended and what may void the warranty?

•  What is the structure of the warranty? Is it pro-rated or a no dollar limit warranty.

•  Is the manufacturer or contractor responsible for warranty coverage?

Building owners are tasked with meeting the terms of a roof warranty to keep the warranty valid. These terms typically include written documentation of annual preventative maintenance and housekeeping along with making sure that all drains and gutters function properly.

At CentiMark we feel it is our responsibility to help our customers comply with the terms and conditions of their roof warranties. It is a value added service that we provide all customers. We will help with annual preventative maintenance, regular roof evaluations and any needed emergency service work. We will also make sure that all gutters, downspouts, drains and other details on the roof function properly.


If you are unaware of the type and terms of your warranty you should contact your roofing contractor with questions. If you have CentiMark’s Single Source Warranty, we welcome the opportunity to partner with you for the life of your roof and help ensure you are getting the maximum life out of your roofing investment.


   Contact CentiMark today


Congratulations to CentiMark NRCA Roofing MVP - Robert Detweiler, Field Supervisor, Jacksonville, FL

Robert Detweiler was nominated by the Lakeland, FL/Jacksonville, FL offices for NRCA Roofing MVP for his exemplary leadership skills, production skills and dedication to the safety of the crews. He is also known for his dependability, work ethic and unsurpassable enthusiasm. He has strong leadership skills and works to train his crews and foreman in both safety and production. Robert has contributed significantly to the growth of the Jacksonville, FL office.

“I was honored to represent CentiMark as the NRCA Roofing MVP in Las Vegas,” says Robert. “I take great pride in my work. My goal has always been to treat my customers with respect and to ensure they are satisfied with our work on their roof. This job at CentiMark has been a true blessing to my family and me.”

Robert was born in Keosauqua, IA and raised in an Amish family. While he left the Amish community as an adult, his large family of siblings, nieces and nephews continue to live and work in the Amish community. “Growing up Amish,” says Robert, “I learned the importance of having a strong work ethic, honesty, integrity, dependability and the value of hard work. That’s what the Amish community represents.” Robert started working on roofs at age 13.

After making the very difficult decision to leave the Amish community as an adult, he moved to Florida and began working for a family friend who owned a roofing company.

Robert started working at CentiMark in 2013 on a roofing crew and was quickly promoted to Service Foreman within four months. After a year, he was promoted to Production Foreman and then Field Supervisor.

Robert and his wife, Lindsay, are the parents of two sons: Ryder (5) and Abel (2). They are active in their church and various charities in their community. In his free time, Robert is an avid hunter and fisherman, NASCAR fan and WWE enthusiast. He is also famous for his backyard grilling skills for friends and family.

Robert raises the bar of excellence for himself and the roofers that he works with at CentiMark. His roofing crews are loyal and respect him. He instills pride in his roofing work and a long-term vision of roofing at CentiMark as a career choice and not just another job in construction.

Product of the Month - 10 % off the Premium Formulation Resurfacer

17 273 May eNews Product210% off our CM2110 Premium Formulation Resurfacer. The QuestMark resurfacer offers the highest flexural and compressive strength of all our mortars. This 100% solids, resin-rich epoxy, is abrasion resistant and designed to stand up to heavy traffic from steel wheels and fork lifts. It is ideal for loading docks, traffic aisles and machining areas.

Available in a variety of sizes and colors.


Order Now

Time to start thinking about the upcoming holiday shutdowns.

ScheduleShutdownIs your plant shutting down over the upcoming holidays? Do you have a list of flooring projects that need to get completed? Whether you are looking to get your entire concrete surface polished, patched or just some standard maintenance, now is the time to get on the schedule.

If you are looking to do some of your flooring projects in-house, QuestMark has an extensive offering for DIY flooring maintenance, patch and repair products along with the tools to get the job done. Shop our offering at

Memorial Day Sales = 10% off entire catalog using Promo Code: MEM10
Valid: 5/23/2017 - 5/30/2017

Don’t forget QuestMark now offers a variety of coating solutions for your traffic deck and pavement whether they are concrete and asphalt.


Schedule now



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