accessible for maintenance.
Design automatic doors to open from
both sides.
11.2
Automatic doors are required at the following locations:
a.
Sliding doors operated by motion detectors and an electric eye
safety device with emergency breakaway features are required
at main entrances (from the exterior) to nursing home care
units and domiciliaries.
b.
Swinging doors with remote push plate operation are required
at NHCU entrance doors to courtyards and patios, and for doors
into NHCU dining and recreation rooms.
12.
EXTERIOR WINDOWS:
12.1
HISTORIC BUILDINGS: While designing to meet the project goals,
use the Secretary of the Interior's "Standards for Rehabilitation
and Guidelines for Rehabilitating Historic Buildings" as a guide
for projects affecting windows of historic buildings. Copies of
this booklet are available from the Historic Preservation Office
(187).
12.2
ENERGY CONSERVATION:
a.
Design windows in accordance with energy requirements in HVAC
Design Manual."
b.
Energy-conservation requirements will result in double-glazed
windows for many locations. For double-glazed windows, provide
a continuous thermal break between inner and outer sash; also
between inner and outer frame components including window
sill.
12.3
INTEGRAL VENETIAN BLINDS: Where double-glazed windows are used,
enclose horizontal venetian blinds between the two glazed surfaces
wherever the type of window will accommodate this feature.
12.4
SILL HEIGHT: Window sills/stools shall be a minimum of 450 mm (18
inches) above the finished floor.
12.5
OPERABLE WINDOWS:
a.
Operable windows are more costly than fixed windows and more
subject to drafts, leaks, and maintenance problems, but may be
required or justifiable for:
-
washing and glazing from within the building
-
ventilation in non-air-conditioned buildings
-
code compliance(patient bedrooms in non-sprinkled
buildings)
-
emergency ventilation in case of loss of electrical power
to HVAC system (when HVAC system is not on emergency power
system)
Make design decisions on operability in close consultation
with the medical center, specifically addressing all the
factors above. Operable windows shall be in-swinging and
side-hinged unless historic design compatibility or other
specific conditions dictate otherwise. All operable windows
in air-conditioned buildings shall normally be closed and
locked. For safety, operable windows in patient bedrooms
shall have hold-open hardware which secures the window at a
maximum opening of 150 mm (6") for emergency ventilation.
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