Performance Requirements and Landmark
Specifications are compatible.
Efficiency, Structural Superiority,
Operating Force & Acoustical Control
are aspects of Window Performance that are
often sacrificed for
Architecturally Correct and Aesthetically
Required landmark details.
certain specifications will always require
compromise, the generally accepted standards
of maintaining site lines, glass types, wood
species, molding profiles and operating
function are available in high performance
A variety of colors in low profile
insulating glass spacers and sealants
are compatible with traditional true
divided lite narrow muntin profiles.
High performance silicone sealants allow
the use of existing landmark and
authentic restoration glass in double
sealed insulating units.
The substitution of thin laminated glass
on either the exterior or interior pane
can increase the Acoustical performance
required in schools, office buildings
and other sites where sound control is
essential to a successful restoration
Various hardwoods, imported and
domestic, are available for increased
structural and aesthetic requirements.
And, computer aided design and
manufacturing systems now allow
dimensional control to the thousandth of
an inch, not only for glass size but
also frame, jamb and trim widths &
thicknesses. Even molding profiles
applied to various parts are flexible at
costs competitive to stock details.