EFCO 8750XD - Manual (Page 3)

EFCO 2012 Page 3
Series 8750XD Unitized Curtain Wall Installation Instructions
Section 1: General Notes And Guidelines
HANDLING / STORING / PROTECTING ALUMINUM
The following guidelines are recommended to ensure early acceptance of your
products and workmanship.
A. HANDLE CAREFULLY - Store with adequate separation between
components so the material will not rub together. Store the material off the
ground. Protect materials against weather elements and other
construction trades.
B. KEEP MATERIAL AWAY FROM WATER, MUD, AND SPRAY - Prevent
cement, plaster, and other materials from contacting with and damaging
the finish. Do not allow moisture to be trapped between the finished
surface and the wrapping material.
C. PROTECT MATERIALS AFTER ERECTION - Wrap or erect screens of
plastic sheeting over material. Cement, plaster, terrazzo, and other
alkaline materials are very harmful to the finish and are to be immediately
removed with soap and water. Under no circumstances should these
materials be allowed to dry or permanent staining may occur.
GENERAL GUIDELINES
The following practices are recommended for all installations:
A. REVIEW CONTRACT DOCUMENTS – Become thoroughly familiar with
the project. Check shop drawings, installation instructions, architectural
drawings and shipping lists. The shop drawings take precedence and
include specific details for the project. Shop drawings govern when
conflicting information exists in the assembly and installation instructions.
Note any field verified notes on the shop drawings prior to installing.
EFCO assembly and installation instructions are general in nature and
cover many conditions.
B. INSTALL ALL FRAMING MATERIAL PLUMB, LEVEL, AND TRUE –
Proper alignment and relationships to benchmarks and column
centerlines, as established by the architectural drawings and the general
contractor, must be maintained.
C. ERECTION SEQUENCE - The sequence of erection should be
coordinated with the project general contractor to prevent delays and
minimize the risk of material damage. Note: When preset anchors are
required, coordinate and supervise anchor and insert placement with the
general contractor including insert layout drawings, where required.
Manufacturing, assembly, glazing, and shipment of the preglazed units
must be carefully coordinated with the general contractor to ensure a
continuous and sustained flow of materials to the appropriate areas of the
project to meet the project schedule.
D. PERIMETER CONDITIONS - Verify that all job site conditions and
accompanying substrates receiving the installation are in accordance with
the contract documents. If deviations occur, notification must be given in
writing to the general contractor and differences resolved before
proceeding further with the installation in the area in question.
E. ISOLATION OF ALUMINUM - Prevent all aluminum from coming in direct
contact with masonry or dissimilar materials by means of an appropriate
primer. Typical slab anchors may be set directly onto concrete surfaces in
a block-out pocket at the edge of the slab. The block-out pocket is later
filled in with grout thereby covering the slab anchor. In such cases, a
heavy coat of zinc chromate or bituminous paint must be pre-applied to
the slab anchor.
F. SHIPMENT VERIFICATION - Verify contents of all material shipments
received upon their arrival. Verify quantity and correct finishes. Notify
EFCO immediately of any discrepancies or damage that may have
occurred.
G. SEALANT - All sealant must meet [ASTM C 920, CLASS 50]. For the
purposes of these instructions, sealant is to be defined as the following:
SEALANT - A weather resistant, gunnable liquid filler which when cured
provides a resilient, flexible (± 50% movement capability min.) air and
water seal between similar and dissimilar materials.
All sealant must be compatible with all surfaces on which adhesion is
required, including other sealant surfaces. All frame surfaces should be
clean, dry, dust, and frost free. If a primer is required, it must be applied to
clean surfaces. All perimeter substrates shall be clean and properly
treated to receive sealant. All sealants and primers must be applied
according to the sealant manufacturers instructions and
recommendations.
This system is designed and has been tested to utilize silicone sealants at
all internal joineries, i.e., joint plugs, gasket intersections, etc.