EFCO Duracast Pressure Plate - Manual (Page 4)

EFCO CORPORATION 6/2012 PART NO. YW45 4
Duracast Pressure Plate Installation Instructions
SECTION I: GENERAL NOTES and GUIDELINES
F . Follow EFCO framing installation and glazing instructions.
G. 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.
H. Throughout these instructions the term “SEALANT” will appear. 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) air and water seal between similar
and dissimilar materials.
All sealant must meet ASTM C 920, CLASS 50.
BUTYL SEALANT- A non-skinning, non-hardening material (NAAMM Refer-
ence Standard 5C-1).
NOTE: All sealant must be compatible with all surfaces on which adhesion is re-
quired, 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 re-
ceive sealant.
This system is designed and has been tested to utilize butyl or silicone seal-
ants at all internal joineries, i.e., joint plugs, gasket intersections, etc.
Regardless of the sealant used, the customer should contact the sealant
manufacturer to determine compatibility and adhesion. Follow sealant manu-
facturer's proper application procedures and quality assurance programs for
weather sealing.
Maintain caulk joints as shown in the approved shop drawings. Unless
specified otherwise, most sealant manufacturers recommend a 3/8” mini-
mum perimeter caulk joint. A 3/4” minimum joint is recommended at the
head condition to accommodate thermal expansion and contraction.
Anchoring surfaces of perimeter construction must be level and plumb within
the adjustable limits of the head, jamb, and sill framing.