Vapor tight and energy efficient roof systems are a specialty requirement.
Roofing refrigerated storage without vapor seal.
Proper placement of a vapor retarder to manage the vapor drive and proper detailing to prevent air infiltration or.
Moisture flow and vapor retarders.
The building location s annual outside temperatures plays a role in determining insulation thickness both for walls and roofs.
In this situation the water vapor on the outside of the building will by vapor pressure differential move into the cold storage building s interior.
Concrete floor fabrication insulation systems cold storage doors and vapor barriers.
When it comes to roofing for cold storage facilities however just being water tight isn t enough.
Generally speaking a roof is designed to keep the interior of a building dry and safe from the elements.
In the primary seal envelope surrounding the annular vapor space enclosed by the roof edge seal fabric and secondary seal.
In cold storage facilities moisture vapor flow is reversed from a traditional building in a northern climate including the roof.
Provide proper insulation at freezer slabs.
It should be installed in layers with staggered joints at both the slab and the roof to prevent easy transmittance of temperature.
The kaiser martin group is the premier cold storage builder and refrigerated warehouse builder for the northeastern u s.
Without a complete vapor seal vapor drive will result in condensation or ice formations at the building interior what follows are general details provided by metl span showing typical cold storage imp vapor barrier installation steps.
This requires two critical measures for roof design.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
The cold storage freezer envelope system consists of.
F any emergency roof drain shall be provided with a slotted membrane fabric cover or equivalent device that covers at least nine tenths 9 10 of the area of the opening.
2 internal floating type cover.
Adhered mechanically fastened or ballasted roofing assemblies that incorporate epdm tpo or fleeceback membrane.
If the vapor barrier is not installed properly or does not have a complete seal moisture vapor will penetrate into the building and over time ice will begin forming and expanding.
Provide a heavy duty vapor barrier similar to a pond liner at a freezer slab.
All components including insulation adhesives edging and associated vapor seal accessories are available from carlisle for total system warranty coverage.
For coolers and freezers the roof exterior vapor barrier whether imp or membrane must tie into the imp wall at roof to wall connections.
When designing the roof of a cold storage building a major concern is the significant vapor drive that occurs predominantly from the warmer exterior toward the colder interior.
Achieve an uninterrupted or continuous vapor seal and obtain the applicable carlisle roofing and vapor seal warranty.
