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Roof Insulations |
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Insulation
Specifications |
Insulation Specifications
The JM Insulation Specification numbering system is
designed to allow
the designer
to easily and clearly describe a particular insulation construction. Arabic numerals
denote the number of layers of insulation attached in a particular manner. Capital letters
indicate the method of attachment
of the insulation and the presence of a vapor retarder.
Capital letters indicate the
following:
M = Mechanically Attached
A = Adhered
L = Loose Laid
V = Vapor Retarder
C = Cold Adhesive
Examples
A construction of one layer of insulation mechanically
attached to a
structural deck
with a vapor retarder and a second layer of insulation mopped in hot asphalt would be described as 1MV1A.
Two layers of insulation mopped in hot asphalt to a
structural deck would
be described as 2A.
One layer of insulation loose laid on a structural deck
would be described
as 1L.
| Deck Substrate: |
S = Steel
W = Wood
L = Lightweight Concrete
C = Concrete
G = Gypsum
T = Cementitious Wood Fiber |
