Return-Path: <peter.steenkiste@IUS3.IUS.CS.CMU.EDU>
Received: from ius3.ius.cs.cmu.edu by K.GP.CS.CMU.EDU id aa11571;
          9 Aug 90 9:25:35 EDT
Date: Thu, 9 Aug 1990 09:24-EDT
From: peter.steenkiste@IUS3.IUS.CS.CMU.EDU
To: bovik@CS.CMU.EDU
Subject: recommendations for replacement windows
Message-Id: <650208259/prs@IUS3.IUS.CS.CMU.EDU>

Date: Thu,  5 Jul 1990 12:02-EDT 
From: Nigel.Goddard@B.GP.CS.CMU.EDU
To: peter.steenkiste@IUS3.IUS.CS.CMU.EDU
Subject: windows

First you have to decide on the style/efficiency questions.  If you want
divided light (window is divided into many small panes with wood
mullions), then its difficult.  You have to sacrifice authenticity or
thermal efficiencey.  If you want authenticity, Pella's Architect series
is the best we could find.  If you want thermal efficiency, probably
Hurd's Heat Mirror is the best to date.

If you want single-light (one large window pane) windows, then you don't
have to make the same trade-off.

Window technology is changing fast.  You can now get R8 windows from
Hurd and others.  Last year it was R4.  They are talking about R12.
Normally walls are insluated to R19 and attics to R30, for comparison.
Of course, the higher R values involve more complex technology, so if
e.g. the window is broken, it might be more expensive to repair.  Some
of the technologies are not proven over time.  For example, argon filled
windows eventually leak their argon.  Low-e coatings can evaporate off
the glass.  Nothing is simple anymore!  I have a couple of articles
that I could copy for you.  I'll try to remember, but you may have to
prod me a couple of times to get them.

Nigel
Date: Thu, 5 Jul 1990 14:02-EDT 
From: David.Simon@FAS.RI.CMU.EDU
To: peter.steenkiste@IUS3.IUS.CS.CMU.EDU
Subject: Re: Replacement windows

Peter,

We just had all of our windows replaced with Certainteed vinyl
replacement windows. So far, the windows have been excellent. We
compared a variety of vinyl windows and decided on Certainteed because
of the simplicity of their sliding mechanism, and because of their
appearance. We also considered several contractors, and ended up with
Dave Hilinski (see phone book for #). I highly recommend him. He
installed the windows about 2 weeks after we placed the order. All of
the work was completed in a single day (11 windows). The work was high
quality, and they did a good job of cleaning up after themselves. He
was also the lowest bidder for the job (by several hundred $$$). 

If you can't find his phone #, let me know and I'll get it to you.

				David
To: peter.steenkiste@IUS3.IUS.CS.CMU.EDU
Subject: Re: Replacement windows
Date: Thu, 05 Jul 90 15:47:23 EDT
From: Dennis Doubleday <dd@SEI.CMU.EDU>

peter,
   We had our entire house done last year by The Window Man, which is
located in Shaler.  We are very happy with them.  They make an
all-vinyl window with poly-foam fill for insulation, double-pane glass
(several varieties of glass).  The put vinyl-clad aluminum panels over
your window framing so you don't have to paint anymore.  The casement
version is hinged toward the middle, so you can easily clean both
sides from inside the house.  The double-hung version tilts in for
easy cleaning.  We paid ~$6200 for 15 windows (including
installation), 9 double hung and 6 casements (which are more
expensive).

Dennis
