Sun Vinyl Windows vs Our Vinyl Competitors


1. Structural component extrusions made from pure virgin vinyl compound

Windows made from Virgin Vinyl will outlast windows made from cheaper PVC blends that include recycled product. Not all Vinyl Windows are the same when it comes to the quality of their vinyl compound. Sun Vinyl products use “Virgin Vinyl” in a precise powder compound formulation, as opposed to a pellet compound that typically contains regrind product. Our vinyl compound contains the highest level of TiO2 (titanium dioxide) in the industry, which is what gives Sun Vinyl products superior UV resistance and weathering characteristics. Sun’s Virgin Vinyl produces superior structural component extrusions formed with lower heat and less stress on the material, making them less brittle over time and giving you a longer product life.


2. Thick extrusion walls and double walled glazing lip

Sun Vinyl extrusions have a heavier wall thickness, as well as multi-chambered designs, including a double walled glazing lip, that contains more vinyl material than many of our competitors. This helps Sun Vinyl windows be stronger and more durable than thinner, cheaper windows. Sashes also have an integral lift rail and interlocking sash rails, while the exterior features a full frame Brick Mold for a more traditional appearance.


3. Structurally reinforced mulls

Sun uses a specially designed, internal, structural aluminum mull reinforcement to add strength and rigidity to mulled units. This provides for a stronger, more secure installation. After installation, Sun Vinyl mulled units will not flex in the window opening like most competitor vinyl windows with weak mulls. You will have superior protection against storms with high winds and other extreme forces.


4. Welded Corners

All Sun Vinyl products feature fusion welded frame and sash corners. This minimizes air and water penetration at all constructed joints, while providing a stronger, more durable window than one that is mechanically fastened. All operating windows incorporate weather seals at the sash seams to guard against water and air leakage when the window is closed and latched.


5. Water Management System

All Sun Vinyl products are designed with a Fail-Safe Water Management System. The exterior perimeter of the glass is sealed against water intrusion. However, because vinyl and glass expand and contract at different rates, we design our Water Management System to provide an effective drain path (to the exterior) for water to exit the glazing channel and sash structure. This helps protect the insulated glass against seal failure. Additionally, all Sun Single and Double Hung windows use sloped sills to promote water run-off and prevent the trapping of debris.

DuraSeal Ht-Energy-2

6. Highly Energy Efficient Insulated Glass

All Sun insulated glass units use the Duralite™ warm-edge glass spacer system. Duralite is the only all non-metallic spacer system available. This gives superior thermal performance and its flexible properties provide a superior seal and excellent argon retention. (Argon is the inert gas used to fill the sealed air space of high performance insulated glass units to improve their thermal performance.)Duralite™ is one of the reasons we are able to provide a full 10 year warranty on our insulated glass.