Design and Construction Handbook - Los Angeles World Airports

Contact to allow 24 hour access to enclosure areas for Contractor and
authorized LAWA personnel.
D. Polyethylene Enclosures
1. Polyethylene Enclosures: Enclosures constructed with polyethylene that
completely enclose the work area above from the top of the barricades
to the ceiling above shall be provided and installed to contain the entire
work area and prevent dust migration to areas outside the work space.
Polyethylene Enclosure support framework shall be capable of
supporting .5 psf applied over the entire surface of each side,
separately.
2. Polyethylene sheeting shall be white in color and at least 6-mil
thickness. Exterior sheeting exposed to Public view shall be installed on
the outside of the support framework to cover the framework. Sheeting
shall be used in widths selected to minimize the frequency of joints. All
polyethylene sheeting used shall be fire retardant and meet City of Los
Angeles Fire Department requirements.
3. Polyethylene sheeting shall be secured continuously at the top of the
barricade and continuously at the deck or soffit above the barricade with
fire-rated tape, preferably white in color. Joints between polyethylene
sheets shall be securely taped, and there shall be no wrinkles or
puckers. One type of tape shall be used for all enclosures. Sheeting and
tape samples shall be submitted for approval by the Airport Contact
prior to installation.
4. The use of Polyethylene Enclosures shall be minimized except as
required for dust control or as directed by the Airport Contact.
1.31.5 Temporary Signage for Barricades
Install and maintain all temporary signage and messaging at all construction
barricade locations as long as the barricades are in place to help direct
passenger traffic around work areas and to alternate paths of travel.
A. Temporary Signage
1. General Requirements
a) All barricade signage (messaging and directional/wayfinding)
provided shall be professionally produced and provided by
Praxis Integrated Communications (Praxis), 213-689-0800.
b) Contractor shall post all required safety and notification
signage on the barricade doors.
c) All barricades in public spaces and visible to the traveling
public shall be covered in LAWA approved messaging per
Article C of this Section.
d) Wooden barricades shall maintain a clean coat of “Pantone
1205 yellow/cream” paint (sample to be furnished upon request)
at all locations where wooden barricades are not wrapped
immediately upon erection.
Design and Construction Handbook
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Handbook (Version 3) 01.15.11