Stop Melted Vinyl Siding and Potential Eye Damage from
Reflective Treated Window Glass and Energy Efficient (Low Energy,
Glass Window Panes.
SED (Solar Energy Diffusion) screen by
PTI successfully defuses by diffraction the high energy beams of sunlight.
This redistribution of a potentially concentrated beam dissipates
the solar energy over a wider area rendering it harmless.
Minor distortions of any window or door glass can turn those
glass panes into reflective parabolic mirrors. This
reflection problem is
most common among energy efficient windows and
windows with other reflection treatments. Studies have
shown that even the slightest curvature or distortion of the surface of
glass, when at specific angles related to the sun, can
produce an intensely hot beam of solar energy.
PTI' Solar Energy Diffusion (SED)
Screen is engineered and formulated to exacting
technologies designed to scatter the reflected light
rays and keep them from becoming a single intense beam hot
enough to melt vinyl siding and cause other serious
damage. Scattering of the light rays is accomplished
by the patented cross-section design of the extruded
fiber stands making up the weave. In
optical terms, PTI Solar Energy Diffusion Screen forms a diffracted pattern and the powerful
solar energy is diffused. See graphic example of light
wave radiation diffraction at the bottom of this page.
vinyl siding is not the only damage nor only hazard associated
with intense reflected radiation from windows. Burnt out
sections and strips of lawns, destroyed
outdoor furniture, blistered auto paint and other extreme heat damages have been
attributed to this phenomena. And, the potential for
injury to one's eyes cannot be overlooked.
Made to Fit Your Windows:
Department, based upon your measurement specifications
given, will custom cut the screen (any size or shape) and
prepare the screen with Grip Lock Pads fused to the edges (at approximately 8 to
10 inches apart). The mating pads, which are provided to you, are then mounted by you on the outside of
the window directly to the glass or to the window frame.
Complete instructions are provided.
PTI's Grip Lock Pads are 1" in diameter, clear vinyl and perform like Velcro for easy
attachment and screen removal as
desired. The mating pads are backed with an ultra high
bonding adhesive and will insure that your SED screen remains
secure under all weather conditions. This
simple, easy to install process to prevent melted vinyl
siding and other reflection damage can save you hundreds
PTI SED Screen is the color of perforated granite and has many additional advantages for the homeowner. It
provides daytime privacy from outside viewers without
limiting the view from the inside looking out. In
addition, it performs like a high quality solar
shade screen shielding you from damaging and heat producing
ultraviolet radiation while minimizing the glare from
direct sunlight. The pictures below show comparison views
from the outside and from the inside.
You will notice that from the outside, vision to the
blocked on the window with SED screen. From the
inside, looking out, the SED screen gives a clear, color
filled, vibrant view and destroys bright sunlight glare (see "Without
SED Screen" below).