Your Sunroom Glass Performance is the Foundation of Your Sunroom Satisfaction

Strength and Safety
Tempered for Your Peace of Mind CONSERVAGLASS SELECT™ is made with tempered safety glass which is four times stronger than regular window glass to ensure its strength and your safety and security.

Long Life and Energy Efficiency
Stainless Steel Glass Spacers Ensure Trouble-Free Performance. Many insulated glass manufacturers use inexpensive, conductive aluminum as their standard spacer material between the lites of glass. This spacer can be cold and prone to condensation. Four Seasons uses a much stronger and thermally stable Stainless Steel edge spacer for the enduring strength of the glass and your comfort and safety. Then, to maximize its benefits, Four Seasons bends the stainless steel into a continuous, extra-strong frame rather than using failure prone corner keys like other manufacturers.

Dual Seal Silicone for Double Protection
PIB + Silicone = Extra Long Life For your protection and to ensure years of trouble-free performance, Four Seasons uses, not one, but two, seal systems to create its insulated glass unit. The glass and stainless steel spacer are bonded first with Polyisobutylene (PIB) as the primary seal and then, for added protection, a second layer of silicone for strength.

Value-Added Features:

Low Maintenance KleenCoat II™ for Easy Care!
Four Seasons' CONSERVAGLASS™ was designed specifically for the extreme demands of a room built entirely of glass by utilizing the most advanced glazing technology available.
CONSERVAGLASS™ makes Four Seasons room additions cooler in summer and warmer in winter, and its advanced construction techniques promise a lifetime of outstanding performance.  In addition, Four Seasons’ CONSERVAGLASS™ is made with tempered safety glass which is four times stronger than regular window glass to ensure its strength, safety and security.
• Repels/Sheets Water Away = No Water Droplet Dust Outlines
• "Sheeting" Action Carries Dirt Away With It=Glass Stays Cleaner, Longer
• Resists Marking and Staining For Easier Occasional Cleaning
• Dries Faster, so Less Dust is Attracted to Surface Superior Glass Deserves Superior Protection

The Ultimate in Protection!
All Four Seasons CONSERVAGLASS SELECT™ comes standard with a temporary protective plastic masking to ensure that your room is clean and beautiful at the end of the installation.
• Protection During Packaging and Handling at the Factory
• Protection During Shipment
• Protection from Materials of Other Trades' Workers at Your Site

The Best Value By Far!
Four Seasons is the only company that offers CONSERVAGLASS SELECT™ as its standard glazing. Others may say they can provide a high performance glass, but it will be at a significant up-charge, increased lead time and will not offer all the benefits Wonderglass™ offers.

Dare to Compare!
Our competitors claim you don't need to be concerned about these things because they can't match the performance of CONSERVAGLASS SELECT™. Be sure to ask for a demonstration in your home or in our showroom. We'll be happy to show you the dramatic difference.

Our Patented Glazing Keeps Four Seasons Sunrooms Warmer in Winter and Cooler in Summer. Four Seasons' CONSERVAGLASS SELECT™ was designed specifically for the extreme demands of a room built entirely of glass utilizing the most advanced glazing technology available. CONSERVAGLASS SELECT™ makes Four Seasons room additions cooler in summer and warmer in winter, and its advanced construction techniques promise a lifetime of outstanding performance.

Energy Efficiency

Four Seasons Has the Highest R-Value in the Industry!
R-Value. R-Value measures how easily heat travels through a material, or its thermal Resistance. The higher the R-Value, the greater the insulating effectiveness, the lower your energy costs and the greater your comfort. The R-Value of CONSERVAGLASS SELECT™ is 100% higher than our competition's standard double-glazed glass, to help retain more heat in the winter.

Unsurpassed Visibility!
Light Transmission/Glare. The percentage of visible light transmitted through the glass. High numbers here indicate a room that will be uncomfortably bright inside. With a Visible Light Transmission of only 56, Four Seasons CONSERVAGLASS SELECT™ offers the perfect balance between visibility and glare reduction. No squinting or sunglasses needed.

CONSERVAGLASS™ SELECT Blocks 85% of the Sun's Solar Heat!
Relative Heat Gain. Relative Heat Gain measures the solar heat gained through a glazing. This number is more important in a glass room than the R-valve, particularly in summer and in warm, sunny climates. High Relative Heat Gain values indicate a room that will be unbearably hot or expensive to keep cool. CONSERVAGLASS SELECT™ Roof Glass' Relative Heat Gain of only 39 ensures your room can be effectively cooled.

The real story behind CONSERVAGLASS SELECT™, and what makes it so special, is its exclusive, patented, multi-coating.. This extraordinary process uses multiple microscopic coatings of exotic metals and compounds to let beneficial natural light into the room, while keeping out the oppressive summer heat and reducing the effects of damaging UV rays. This remarkable glass also reflects interior heat back into the room, keeping your warmer in winter as well- a true Four Season Room!