City Glass takes extra precautions when installing windows into a home or business located at high elevation. We make sure the windows we use at high altitude have “breather tubes”, which help to relieve the pressure between glass panes that occurs during transportation between altitudes.
Windows that have breather tubes are usually manufactured at lower elevations. The tube, made of aluminum, is installed between the panes of window glass. When moving windows from the manufacturer to the installation site at higher (or lower) elevations, the breather tube will be open to allow air pressure between panes of glass to be equalized in the new climate. Once this has occurred, the 3 to 6 inch tube may be crimped shut. The window will then be acclimated and expected to offer a long life of service in its new surroundings.
City Glass has been in the glass and glazing business since 1950. We are the oldest and largest full-service glass and glazing company in the Pikes Peak Region. Our glass and glazing company has an A+ Rating with the Better Business Bureau. With over 35 employees and 20 service vehicles, we offer fair, fast, and honest service on small and large-scale glass and glazing projects throughout the Pikes Peak Region.
We are in business to serve customers who need basically anything involving glass, mirrors and related materials – in residential, commercial and new construction settings. This includes the following: replacing glass in homes and businesses, installing new aluminum store fronts, curtainwall and glass for new construction of commercial buildings, repairing storm windows and doors, installing custom mirrors and shower enclosures, providing glass table tops, screens, picture frame glass, and aquarium glass repairs.
Essentially, they are both the same and the proper term is an “IG Unit” (IGU). An IG Unit is the common name for insulated glass unit which is made up with two pieces of glass that is separated with a spacer filled with air or gas. IGU glass panes are part of a sealed system; you cannot replace one pane without replacing both, because you must replace the entire insulated glass unit.
Low-E glass (low-emissivity) glass is a coating to minimize the amount of infrared and ultraviolet light that comes through your glass, without minimizing the amount of light that enters your home. Low-E glass has a thin coating that is transparent and reflects heat.
In its simplest form, the difference is down to the number of layers in the Low-E coating. Low-E 272 has 8 layers in its coating, and Low-E 366 has 12 layers. These layers are what do the work of reflecting the heat while letting light into your home.
Annealed Glass (known as standard float glass) is a softer glass that has been thermally treated and then slowly cooled to relieve any internal stresses. Annealed glass tends to break into longer, jagged shards.Tempered Glass is strong break-resistant type of safety glass that, if broken, shatters into small granular pieces. Tempered glass can stand up to moderate heat (470°F). Tempered Glass is a safety glass.
Laminated Glass is a type of safety glass that two or more sheets of glass with an inner layer of transparent plastic to which the glass adheres if broken, minimizing the number of pieces. Laminated Glass is used for enhanced safety and security, as well as a sound reduction.
Plexiglass, also knows as acrylic glass, is a transparent plastic made of polymethyl methacrylate, often used in place of glass. The material is shatter-resistant, lightweight and can be used as a safety glass. Plexiglass scratches easier than glass but is less likely to shatter.
Lexan is also known as polycarbonate. It is a much stronger alternative to plexiglass. Thicker forms of Lexan are so impact resistant that some bullet proof glass is made from it. In addition, Lexan is resistant to heat and fire and is less likely to shatter.