WINDOWS THAT VIRTUALLY CLEAN THEMSELVES?   The science of CONSERVAGLASS PLUS (tm) -- It's not magic but close to it. A variety of different technologies go into manufacturing CONSERVAGLASS PLUS(tm) , but the key technology - the one that helps windows stay cleaner longer is the super-thin coating we apply. Using our patented double-sputtering process, we apply an invisible, durable and permanent coating of titanium dioxide and silicon dioxide to the outside of the glass, permanently enabling it to stay cleaner, longer.   1.THE CLEANING PROCESS STARTS WITH ULTRA-SMOOTH GLASS Silicon dioxide makes CONSERVAGLASS PLUS(tm) exceptionally smooth. In fact, it's much smoother than ordinary glass. So water disperses evenly, "sheets off" and evaporates quickly, greatly reducing water spotting.   2. TITANIUM DIOXIDE AND RAIN FINISH THE JOB Titanium dioxide reacts chemically with the sun's UV rays, causing any organic materials on the glass to decompose. It works even on cloudy days, as 80 percent of UV radiation gets through cloud cover. Then when it rains, the decomposed dirt is rinsed away, leaving the glass almost spotless. Result? You can spend less time washing windows and more time enjoying the view.   3. SPUTTERING PROVIDES ANOTHER CLEAR ADVANTAGE It actually provides two more advantages. First, CONSERVAGLASS PLUS(tm) with Stay-Clean Technology allows more visible light transmittance than any comparable competitive product. Second, it's also less reflective. Together, these two features provide a clearer view, inside and out.   4. FINALLY, CONSERVAGLASS ADDS COMFORT AND EFFICIENCY When "the PLUS" is applied to CONSEVAGLASS, it combines the ultimate in low maintenance with the best energy-conserving (continued) sunroom glass on the planet. Your room will stay warmer in winter and cooler in summer. CONSERVAGLASS PLUS(tm) conserves energy year-round.     ALL OUR GLASS IS ENERY STAR RATED     Roof Glass Blocks Summer Heat   During summer months, the sun is high in the sky and directs its energy toward the roof of your sunroom. Ordinary clear glass does little to block the sun's energy and will quickly overheat your sunroom. To combat this, Four Seasons' exclusive CONSERVAGLASS PLUS (tm) for roof applications includes a spectrally selective coating inside the insulated glass panel to block much of the sun's heat while still allowing visibility through the glass. This high performance glass coating enables you to condition the air in your sunroom and enjoy it during the summer.   Cooler in the Summer   Wall Glass Supplements Winter Warmth   During the colder winter months, the sun is low in the sky and directs its energy toward the walls of your sunroom. Ordinary clear glass in your walls allows solar energy in, but also allows that same energy to flow right out again. Four Seasons exclusive CONSERVAGLASS PLUS (tm) for wall applications allows solar energy into your room to reduce your heating requirements and helps keep it there by reflecting heat back into the room. Four Seasons' CONSERVAGLASS PLUS (tm) enables your room to be heated even during the coldest winter days.   Warmer in the Winter   more...