The Gerkin 5300 casement window is designed with performance in
mind. The air infiltration on our casement is often better than our
competitors’ fixed windows. These windows perform so well in NFRC
thermal tests that they have been used in 5-Star Green Building
projects, Net Zero housing and numerous LEED certified projects.
Some of the highlighted features of the casement includes
compression bulb weather seals, multi-point locking, easy to crank
roto system, heavy-duty stainless steel hinges, and
hydraulically-locked sash corners keys with liquid welds.
Our attention to detail in design and workmanship has earned Gerkin
a reputation for building quality windows that withstand the test
of time and have earned Gerkin the Builders Choice Award.