UFC 4-211-01N
25 October 2004
adjacent buildings, and be protected from abuse, both interior and exterior.
Options for the exterior walls include:
3-7.1
Reinforce concrete masonry walls up to 3 m (10 feet) above the
floor with field fabricated metal wall panels above. Insulate walls to achieve the
required energy budgets.
3-7.2
Pre-finished metal wall panels outside and batt insulation with vinyl
scrim facing on the interior, concrete masonry unit wall, approximately 2.5 m (8
feet) high, on the interior side. The masonry wall provides for protection of the
exterior wall panels from the interior. Protect the exterior wall finish with some
form of barrier to prevent damage.
3-7.3
Pre-finished metal wall panels outside and batt insulation with vinyl
scrim facing on the interior. Exterior panels will be protected with metal liner
panels, approximately 2.5 m (8 ft) high, on the interior side. Provide a guardrail
to protect the liner panel along walls exposed to the exterior.
3-8
SURFACE TREATMENT. The chemical properties of materials
and finishes for exterior surfaces should have the highest possible resistance to
the effects of weather and salt-corrosive atmosphere.
3-8.1
building surfaces to aircraft in flight, roofs and other external surfaces should
have a specular reflectance compatible with the location of the building on the
airfield.
3-8.2
Operational Hazard Glare. If the building is located so that glare
may be an operational hazard, the critical surfaces of the building should have a
light reflectance of not more than 10, measured at an angle of 85 degrees in
accordance with ASTM D 523, Specular Gloss.
3-9
WALL PANELS. Field assembled, insulated metal wall panels will
typically be the most cost effective. Other types of panels such as factory-
foamed panels may be provided as required to comply with the Base Exterior
Architectural Plan or to be compliant with the architectural theme already
established on adjacent facilities.
3-10
ROOF SYSTEMS. The roof system, due to large surface area and
proximity to operating aircraft, should be carefully selected. Insulation should be
provided as required to meet the energy budgets established. On built-up roofs,
the design should preclude carrying gravel or slag aggregate from the roof
surface by high winds or drainage to any area where aircraft operate. The color
of roof surfaces should be as described in this section. Provide gutter and
outrigger downspouts at the front of the hangar. Provide snow guards at the
front of the hangar in areas subject to heavy snowfall. Provide access from O2
level spaces to the low roof over the O1 and O2 spaces, and exterior access to
12
Previous Page
