With so many replacement windows on the market it
can
be confusing and frustrating to know which way to go. There are some
general considerations that need to be made and it will help you to
develop a checklist of basic requirements for your situation. If you
start calling contractors and listen to their recommendations you'll
probably become more confused than you when you started.
One of
the first things I recommend doing is to inspect your windows from the
outside. Take note of the wood and siding around the window unit
because it is as important as your window choice in the long run. If
you find rotting and/or holes and cracks around the window you probably
should be doing a full frame window replacement.
A full frame
window replacement is one that includes complete removal and
replacement of the whole window including jambs, casing, head, sill,
and sash. In most homes there has been water leakage over the years
that has caused rotting and, possibly, mold. When the contractor
removes the old window unit they have clear access to inspect and
replace any problems they find. They can also re-insulate immediately
around the replacement window unit for better overall performance.
Decide
what material you want. There are three basic materials used in the
replacement window industry. Those three materials are wood, vinyl, and
aluminum.
There is no wood window on the market
with a lifetime
warranty. The basic problem is that wood rots. They just can't count on
it to last. It also doesn't have the insulating value of vinyl and
aluminum because both of those can be filled with some type of
insulation like foam. Condensation is inevitable, especially when your
house is well insulated. The condensation drips down the inside of the
glass and causes the water to collect on the wood sash. Wood gives you
maintenance headaches and premature death of your windows.
In any
climate aluminum windows are not really a good choice either. Aluminum
conducts heat and cold so they don't offer the insulation value of the
same style window built with insulated vinyl.
I always recommend vinyl
replacement windows. Within the classification of "vinyl
replacement windows" there are high quality vinyl and low quality vinyl
components used in a variety of windows. Make sure that your are only
considering virgin vinyl. Recycled vinyl is not good in replacement
windows and is really not a green product. Using reground vinyl creates
instability within the vinyl because the polymers are trying to get
back to their original shape. In the sun various reground vinyls will
crack or break during expansion and contraction.
It is no
coincidence that the only replacement windows that currently meet the
proposed Energy Star Standards for 2015 are all premium vinyl windows.
And
now we've reached the biggest item for you to consider. Glass is the
single most important factor in choosing your replacement windows. 85%
of the window unit is glass and glass is the easiest thing to get
objective rankings for. The NFRC provides the data you need in their
rating system. As you will see, there are thousands of window
manufacturers that have their products rated by the NFRC (National
Fenestration Rating Council). Understanding the data makes it simple to
know which windows are the contenders and which ones are the pretenders
but understanding the NFRC label is the easiest way for you to rank the
various windows.
Surprisingly, the big three, Andersen,
Marvin,
and Pella don't seem to come close to some of the smaller companies in
their standard offering. There are many really good ones but from what
I've seen the two best overall replacement vinyl windows are
Preservation Windows and Gorrell Windows. Using the criteria I talked
about will help you decide which window works for you. What I think
doesn't really matter, what do you think?
Larry
Hering is a consultant for Northland Home Exteriors and has over 21
years in the window business. He has first hand experience having
worked with Andersen, Lindsay, and Preservation Windows. At Andersen
Windows, where he spent sixteen years, he started as a factory worker
and moved up to Purchasing Coordinator before leaving in 1970.
Another
place you find his work is on the Garden Web's home forum. He answers
window questions placed by readers and you can also ask your questions
through the window forum. The URL is http://ths.gardenweb.com/forums/windows/.