June 99
2.4
Use VA Program Guide PG-18-4, Standard Details, as a
guide only. However, use the VA Door Schedule, Standard
Detail 7.
2.5
Use fire protection symbols for fire-rated and smoke-barrier
partitions, as indicated in PG-18-4, on the 1:100 (1/8")
architectural floor plan, where the partition types are
designated, and on the fire protection plans (FP drawings).
2.6
Minimize the number of floor drains, because of possible
problems from sewer gases. Locate floor drains where
indicated in the Equipment Guide List, Program Guide 7610
and in the Plumbing Design Criteria.
3.
BUILDING PERIMETER FOUNDATION DRAINAGE
3.1
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 judgment of the designer. 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 it on the architectural basement
floor plans. Sections must show relative elevations
compared to basement floor level.
3.2
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.
3.3
Subsoil drains shall maintain a pitch as uniform as possible
and shall drain to suitable outfall. Minimum pitch shall be
0.5%.
3.4
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.
3.5
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.
VA Design Guide -- National Cemetery Administration
Page 5 -4
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