Insulation between Metal Deck and Purlins
Insulation between Metal Deck and Purlins
(OP)
For some thermal break issues the contractor wants to install a 1" thick layer of insulation on top of metal purlins and than screw down the 1.5" 20g metal deck on top of the insulation. This is for a large tilt up concrete building with steel girders every 20' and metal purlins spanning the 20'. My gut tells me this will screw up my diaphragm and require another system to be the diaphragm such as rods (similar to a PEMB). Thoughts?






RE: Insulation between Metal Deck and Purlins
Mike McCann, PE, SE
RE: Insulation between Metal Deck and Purlins
RE: Insulation between Metal Deck and Purlins
RE: Insulation between Metal Deck and Purlins
There were usually tie rods connecting the purlins.
RE: Insulation between Metal Deck and Purlins
RE: Insulation between Metal Deck and Purlins
As you noted, "The Contractor wants......" How badly doe$ the contractor want?$?
RE: Insulation between Metal Deck and Purlins
RE: Insulation between Metal Deck and Purlins
Mike McCann, PE, SE