Author: Glenn Walter

What’s the value of a stucco tape being water-resistant or waterproof?

Water-resistance is an essential characteristic that a good stucco tape needs to have in order to stand up to the job. A key part of the stucco application process is to wet cure the first coat, called the scratch coat, in order to keep it from drying out. Wet curing involves periodically spraying a mist of water over the stucco. During this process, it is critical that the stucco tape that is being used to protect windows and door frames is able to withstand the spray of water and retain its holding power so that it does not fail....

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Mission: HVAC 2017 – Challenge 7: Measuring Efficiency

If you have ever faced sky-high heating or cooling bills despite feeling like your home or office is never quite the temperature you want it to be, you know how impactful system efficiency is. But how can you be sure if your system is running as efficiently as it should be? We asked Gustavo, Aaron, and Chris to explain how HVAC systems are measured for efficiency – and how it affects your wallet. Gustavo: Smart Systems For this mission, I took it upon myself to conduct most of the research. Based on my own personal experience in this field,...

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Why does tape often fail on reflective insulation?

Tape failure is unfortunately not an uncommon occurrence on reflective insulation projects for HVAC ductwork. Reflective insulation is a great way to reduce energy costs, but its ability to do so is dependent on the achievement of full system closure, in which tape plays a key role. Often times, duct systems with reflective insulation are located in unconditioned spaces, subject to the weather extremes of hot and cold. When tape is exposed to the conditions of these attics and crawlspaces, it can potentially lose its ability to provide full system closure. Thermal cycles, or the gradual changing from hot...

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Why are some stucco tapes red?

Stucco tapes are offered in several different colors, but the most popular and commonly used is the iconic bright red tape. Besides being easy to remember, this color actually serves an important function in the stucco application process. The red color of the stucco tape provides good visibility to contractors when applying stucco. Not only does it make it easy for them to see where the tape is in order to take extra care around the edges when using a trowel to apply stucco around the edges, but it is critical at the end of the process when the...

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Why do I need a UL listed tape for HVAC reflective insulation?

In any job that involves HVAC work, including the installation and maintenance of reflective insulation, using tapes that are UL listed is critical. Why is having a UL listing so important? A UL listing: Ensures that the tape has been rigorously tested for adhesion and resistance to thermal cycles, preventing tape failure Prevents inspection failure due to using a tape that does not meet code Indicates that the tape helps achieve full system closure when properly applied to ensure the effectiveness of your reflective insulation Full system closure is critical to ensuring that your reflective insulation does its job...

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