N.M. Admin. Code § 14.7.4.29 - PARAPETS
A.
Plastered
parapets, whether of CEB or frame construction, shall require a seamless
but permeable waterproof cover or weather barrier, capping the entire parapet
and wrapping over each side. The cover shall extend past the bond beam a
minimum of four inches on the wall side. On the roof side, the cover shall
properly lap any rising roof felts or membranes and be properly sealed. A layer
of expanded metal lath shall be installed over the cover before plaster or
stucco is applied. The lath shall extend past the bond beam on the wall side a
minimum of five inches and on the roof side the same distance as the cover
below, allowing for plaster stops or seals. No penetrating fasteners are
allowed on the horizontal surface of parapets.
B.
Exposed parapets of CEB shall
be laid in level courses of fully stabilized block and mortar. Bed and head
joints shall be fully grouted and tightly tooled. Bedding joints at bond beams
and around vents and canales shall be fully grouted and tightly tooled. The
horizontal top of exposed CEB parapets shall be covered with a minimum
three-fourths inch layer of fully stabilized mortar, troweled to conform to the
parapet. Water proof sealers are allowed, providing they are permeable. Other
parapet covers, such as flagstone, Spanish mission tile or cement mortar are
allowed providing they are securely attached to the parapet. A scaled,
sectional drawing shall be provided to the building official showing the
attachment scheme.
Notes
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