Q: Richard, We have been asked to try and provide a better seal on these large sliding doors as per the attached picture. The size of each door is 16’3” x 36’ tall There are four in total (2 on each end of this building) Our builder suggested 3” brush type weatherstrip – my concern is the ice and snow of winter freezing it up. Do you have suggestions on what would work best? Best Regards, Lorisa Brower
A: The short answer is this: Therm-L-Brush from Sealeze is precisely what your application calls for.
Why use Therm-L-Brush Weatherseal?
This bristle is simply the most effective weatherseal and is 98.5% effective in blocking air infiltration. It is at least three times more effective than vinyl, and almost never needs replacement. Therm-L-Brush will not interfere with the operation of the door. A study by the U.S. Navy on energy conservation
found Therm-L-Brush to be the superior weatherseal material.
How does it work?
Therm-L-Brush is a dense wall of nylon filaments bound securely by a strip
of galvanized steel and held in an aluminum holder. This wall of nylon
forms an almost air-tight barrier. It is flexible, allowing unimpeded door
movement. It will not tear or pull out and conforms to surface e irregularities
maintaining a complete weather tight seal for the life of the door.
It lasts the longest.
Independent laboratory testing has proven our brush to
stand up to 2,000,000 cycles (opening and closing) without
degradation. Nylon filaments give Therm-L-Brush unmatched
flexibility and durability. This not only enables it to conform
to all surface contours for a complete seal but also makes it
impossible to tear the way solid sealing materials do. Our Therm-L-Brush
almost never needs replacement. And the nylon holds up to the weather
like nothing else. Installations of 10-15 years are the rule, not the exception.
It can usually be expected to last the life of the door.
It works even at 70° below.
In the coldest climates, where vinyl and other materials can freeze and
become brittle, Sealeze Therm-L-Brush will stay flexible.
Finally The 3" bristle length your builders suggests can be reviewed here:
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and here:
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