How does TPO stand up to accelerated weathering?


When it comes to roofing material, it is helpful to know the length of its lifespan—after all, no one can afford to put on a new membrane and simply wait to see how long it lasts. Building owners need assurance of roof lifespan so they can determine when a replacement might be needed, and manufacturers need to determine membrane warranty.

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The Value in Standardizing Door Schedules


by Melany Whalin, CSI
Horror stories abound among hardware consultants who have been called in at the last minute to create hardware specifications that were needed yesterday, only to be given incomplete or inaccurate door schedules on which to base their specifications.

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