Why are dampers and exhaust fans specified in some designs and not others?
January 18, 2020
Why are dampers and exhaust fans specified in some designs and not others?
January 18, 2020
I need designs that include wood joist 2 x 8’s and 2 x 10’s. Can you help?
January 17, 2020
Why can’t I find a design? What happened to the design I used to specify?
January 17, 2020
Can a wall design be used in a horizontal application, for example, as a soffit? If not, is there a tested design for this application?
January 17, 2020
Are there fire-resistant wall designs that include gypsum board on one side of a metal stud?
January 17, 2020
Where do I find information regarding the fire resistance of archaic materials?
January 17, 2020
Where do I find information regarding the fire resistance for common materials like wood, concrete, etc.?
January 17, 2020
How do I determine the hourly rating of an existing “UL Labeled” door?
January 17, 2020
Can the ceiling suspension system be lowered?
January 17, 2020
Where is the sound transmission class (STC) rating listed for a design?
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