Category Archives: Window Technology

Do vinyl windows (uPVC windows) save on utility bills?

Today I reponded to a forum article and I thought I would make it my latest Blog post. The Forum’s initial question was: MGM vs Simonton. I got a little long winded and my posts were deleted: that which follows … Continue reading

Posted in Green Technology, Vinyl Windows, Window Manufacturing, Window Technology | 1 Comment

What is the problem with butting brick against a window?

Question: What is one of the most common mistakes that building contractors make when installing windows and doors? Answer: Not allowing enough clearance between the brick and the installed window.

Posted in Construction, Impact Rated, Painted Vinyl Doors, Painted Vinyl Windows, PolyVinyl Chloride (PVC), The Business of Manufacturing, Uncategorized, Vinyl Windows, Window Manufacturing, Window Technology | Leave a comment

What is an Energy Star rated window and door?

  One of the most asked frequently questions we get from all types of individuals is:  Is your window Energy Star approved? Everyone gets frustrated by the answer: yes, but, it depends on your location.   Usually the next sound from … Continue reading

Posted in Green Technology, Painted Vinyl Doors, Painted Vinyl Windows, PolyVinyl Chloride (PVC), Uncategorized, Vinyl Windows, Window Technology | 4 Comments

Can PVC or Vinyl be recycled?

Can PVC or Vinyl be recycled? PVC can be recycled.  We have been doing it at MGM Industries each and every day since we started extruding the material in 1999.  We started making PVC (vinyl) windows in 1985, and we … Continue reading

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Can PVC be painted? (how to paint PVC or vinyl)

Conventional wisdom has it that PVC is not paintable. That’s a reasonable statement. Had I not spent six years researching painting uPVC I’d say the same thing. So: Can PVC be painted?

Posted in Painted Vinyl Doors, Painted Vinyl Windows, PolyVinyl Chloride (PVC), Window Technology | Tagged , , , , , , , | 33 Comments

Please Explain Solar Heat Gain (SHGC)

Maybe you have seen the dreaded acronym SHGC. Even people in the window business get confused with this Egyptian hieroglyphic. SHGC stands for Solar Heat Gain Coefficient, but what does that mean? (For you old timers SC* =SHGC*0.87) *SC–Shading coefficient … Continue reading

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Design Considerations for Wood Windows

Figure 2. shows three design concepts for those people to consider if they insist on wood windows. On the far left is the traditional design. This design is used to build thousands of wood windows. In order to understand the … Continue reading

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MGM Casement passes impact

Our 4710 series casement window passed large missile impact today. We will designate the window with a new series number: the 4780 casement. We passed with the following details: Passed DP-50 impact rated for large missiles. Passed DP-70 air, water … Continue reading

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Why Wood Rots

“Why do my wood windows rot?” Reasons for wood to rot in windows: • Wood used today is not old growth wood. • The wood is spiced together by “finger joint” techniques. • The preservatives used to treat the wood … Continue reading

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R-5 Window Demand

There has been a lot of bally-hoo lately among the window manufacturing community about an R-5 window.  This window would probably require a 1.500 inch overall insulated unit which is triple glazed and has two layers of Low-E glass.  The … Continue reading

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