[b. Maximum of 300 mm (12 inches) apart horizontally and vertically
into [concrete] [masonry].]
Space fasteners more closely when required for negative wind load
]3.3.2
Insulation Board
Unless otherwise specified by the system manufacturer, place the long edge
horizontally from level base line. Stagger vertical joints and interlock
at corners. Butt joints tightly. Provide flush surfaces at joints.
Offset insulation board joints from joints in sheathing by at least 200 mm
(8 inches). Use L-shaped insulation board pieces at corners of openings.
Joints of insulation shall be butted tightly. Surfaces of adjacent
insulation boards shall be flush at joints. Gaps greater than 1.6 mm (1/16
inch) between the insulation boards shall be filled with slivers of
insulation. Uneven board surfaces with irregularities projecting more than
1.6 mm (1/16 inch) shall be rasped in accordance with the manufacturer's
instructions to produce an even surface. Attach insulation board as
recommended by manufacturer. The adhered insulation board shall be allowed
to remain undisturbed for 24 hours prior to proceeding with the
installation of the base coat/reinforcing mesh, or longer if necessary for
the adhesive to dry. However, do not leave insulation board exposed longer
than recommended by insulation manufacturer.
**************************************************************************
NOTE: For PM systems, specify mechanical fastening
of insulation board to the sheathing board. For PB
systems mechanical attachment may be specified as an
option.
**************************************************************************
[3.3.2.1
Mechanically Fastened Insulation Boards
Fasten with manufacturer's standard corrosion resistant anchors, spaced as
recommended by manufacturer, but not more than 600 mm (2 feet) horizontally
and vertically.
][3.3.2.2
Adhesively Fastened Insulation Boards
Apply insulation board using adhesive spread with a notched trowel to the
back of the insulation boards in accordance with the manufacturer's
instructions.
]3.3.3
Base Coat and Reinforcing Fabric Mesh,
**************************************************************************
NOTE: Delete the inapplicable system (Class PM or
Class PB EIFS).
**************************************************************************
[3.3.3.1
Class PB Systems
Allow the adhered insulation board to dry for 24 hours, or longer if
necessary, prior to proceeding with the installation of the base
coat/reinforcing fabric mesh Install reinforcing fabric in accordance with
manufacturer's instructions. Mix base coat in accordance with the
manufacturer's instructions and apply to insulated wall surfaces to the
SECTION 07240
Page 23
Previous Page
