3.1
Provide a temporary index to drawings for all review submissions
except the final, which is to be permanent. The index, on
standard size drawings, will be part of the contract documents.
3.2
Use fire protection symbols for fire-rated and smoke-barrier
partitions on the 1:100 (1/8") architectural floor plans, where
the partition types are designated, and on the fire protection
plans (FA drawings).
4.
BUILDING PERIMETER FOUNDATION DRAINAGE
4.1
Subsoil (foundation) drainage provides a means of removing water
which may percolate to the footing level of a building foundation
system. Establish the need for a subsoil drainage system by an
analysis of the climate, topography, soil character, water table,
geological factors and the designer judgment. Where topographical
or other factors exist which would lead to uncertainty regarding
the ability of natural drainage to function and avoid damage by
subsurface water, provide a subsoil drainage system and show on
the architectural basement floor plans. Sections must show
relative elevations compared to basement floor level.
4.2
Provide subsoil drains, when judged advantageous and where
individually required, at building perimeter wall footings
adjacent to basement, crawl spaces, or pipe basements below grade.
4.3
Subsoil drains shall maintain a pitch as uniform as possible and
shall drain to suitable outfall. Minimum pitch shall be 1/2 of
1%.
4.4
Unless site conditions otherwise dictate, no subsoil drainage
piping shall traverse a building area to reach an outfall. Where
a condition makes this imperative, use solid pipe with sealed
joints to traverse a building area.
4.5
Subsoil drains shall in no case be lower in elevation than the
base of adjacent footings. When an abrupt change in elevation of
footings occurs, drain tile shall lead away from building at the
higher elevation of the transition. The lower level shall be
separately drained.
5.
MEMBRANE WATERPROOFING AT INTERIOR FLOOR DRAINS:
5.1
Provide membrane waterproofing under floor finishes surrounding
floor drains in areas subject to wet conditions from interior
sources to prevent water and moisture from penetrating the
underlying floor slabs and damaging the finishes and contents of
the rooms or spaces below.
5.2
Exceptions.
Do not provide membrane waterproofing if:
a.
The floor slab is placed on grade, or
b.
The floor finish itself is latex mastic with waterproofing
membrane.
5.3
Guidelines. The architectural designer shall determine which
locations require membrane waterproofing.
5.4
Design. Attach the membrane waterproofing to the floor drain by a
clamp and extend it outward from the floor drain under the entire
area of the surrounding floor finish surface or concrete topping
which slopes toward the floor drain or which is subject to surface
water. At each floor drain not installed in connection with a
waterproof membrane, provide a 1.1 to 1.8 kg (2 1/2 to 4 pound)
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