manufactures the industry standard self-closing,
fire-rated fireproof lot-line window.
Our lot-line windows are all made to order.
They are rated by the New York City Board
of Standards and Appeals for 3/4-hour
which is the maximum fireproof rating
for a window. In almost all cases, lot-line
windows are glazed in the factory with
either 1/4" clear or frosted wire
glass. (For certain specialized applications
windows can be glazed with a clear fireproof
fireproof lot-line window should be intalled
into a masonry opening in such a way that
there is no combustible material between
the window and the existing wall. Please
for complete measuring and instalation
of the classic design of our lot-line
window, including true divided lite glazing,
our lot-line windows have frequently been
used for landmark and other historic jobs.
can install our windows at job sites in
the New York City Metropolitan area or
our windows can be shipped to your job
site to be installed by your contractor.
They are shipped completely glazed and
with all sash weights and sash installation