Window has been a product for cold climate regions with small
producers providing custom unit sizes. Adding a storm window unit to an
existing window provides several improvements. A storm window is a product of window screen factory that dramatically
reduces air infiltration and increases the thermal performance of a single-pane
window while reducing the impact of weather on the prime unit. Available
options such as low-e glazing will further reduce energy consumption while
available tilt-in sash allows for ease of maintenance. High performance storm
windows are also ideal for noise reduction.
Aluminum is the material that provides high strength with a narrow
profile. The poor conductive properties of aluminum can be mitigated by
existing wood windows that serve as a thermal break. Storm windows are typically
not ideal for installation on vinyl prime units as the elevated temperatures
between the units escalate the expansion and contraction of the frames. Storm
windows have a similar effect on windows joined with lead caming. Aluminum
windows benefit from the addition of storm windows but the differential
movement between the windows must be accommodated with material such as a
double-sided adhesive cork tape.
Storm windows are installed either on the interior or exterior of
the prime unit and are typically available as sliding units operating
vertically or horizontally or as a fixed unit ideal for removal. Units are
available in sizes large enough for sliding glass doors. Operable units
available in double- and triple-track configurations allow air circulation and
self storage of a screen. Fixed units are ideal for picture windows however
they need seasonal maintenance when used in conjunction with operable prime
units.
A screen’s primary purpose is providing protection to insects although some new screening materials have been developed that improve energy performance. Various screens are now available that reject unwanted heat gain in warm climates but reduce ventilation and natural day-lighting. The energy savings of such screening can be significant and some utilities subsidize their cost in hot climates. These screens are effective on east and west elevations where the sun is at a low inclination, and passive solar control strategies such as awnings and overhangs are not generally effective
No comments:
Post a Comment