[Greenbuilding] replacement window discussion

[John Salmen]

In modelling buildings you can predict the difference in performance between various glazing assemblies and for a new home the cost difference between a vinyl product with double glaze and a triple glaze is probably recoverable in a decent time frame. 

 

For a renovation the labour involved in restoring an older window (essentially sealing and either reglazing or providing a sealed storm) would be comparable and possibly more than a vinyl performance window as it involves not just refinishing (as Alan describes) but can include removing of trim, exterior and interior sealing and insulating cavities, repairing counterweights, etc.  I actually think investing in the labour of restoration is preferable to buying more product and creating more waste, as its a local solution and creates labour. We have enough crappy new windows out there.

 

John

 

 

From: Greenbuilding [mailto:greenbuilding-bounces at lists.bioenergylists.org] On Behalf Of Sacie Lambertson
Sent: September-23-15 11:08 AM
To: Greenbuilding
Subject: [Greenbuilding] replacement window discussion

 

Having purchased an old 1883 intact with most of its originals inside and out, we are eventually going to be facing the question of the windows.  I plan to gut the house and do double wall construction a la passiv haus.  The windows for those are triple glazed and vastly expensive.  Some argue double glazed with the 'insulating' shades is about as good as a triple glazed window.  And some of you mention special shutters as an alternative too.

 

I would like to read a further discussion on the merits of the various approaches, particularly useful from those engaged in a scientific approach like John Straube or Bob Klahn.

 

We're a long way from the project, but are beginning to consider some details.

 

thanks,  Sacie

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