What happens when you don't backglaze
Post new topic   Reply to topic
Historic HomeWorks Forum Forum Index -> Windows & Doors  
View previous topic :: View next topic  
Author Message
Harold Pomeroy



Joined: 26 Apr 2006
Posts: 25
Location: Chesham Station, NH

PostPosted: Wed Jul 12, 2006 12:28 pm    Post subject: What happens when you don't backglaze Reply with quote

I recently saw the results of no back glazing in pine sash.

The homeowner had bought custom wooden white pine sash from a local sash maker in 1969, for the restoration of a 1750's farm house. Now their problem is ants. Because of insufficient storms, condensation had formed on the interior glass surface, and run down into the rabbet, where there is no back glazing. Over the years, this rotted the sash from the inside out. The water ran along the bottom rail rabbet, along the tenon, and rotted the botttom corners of the sash. Ants found these wet corners, and tunnelled into the rails.

The result is that the sash look good from the outside, which is painted, and look OK from the inside, which is stained. Unfortunately, the structural part has been eaten.

The lesson I take from this is to keep on back glazing, and do not under cut the back glazing when cleaning after glazing. One should assume that window sash will get wet on the inside, as well as the outside.

Harold
Back to top
View user's profile Send private message
johnleeke
Site Admin


Joined: 20 Aug 2004
Posts: 2972
Location: Portland, Maine, USA

PostPosted: Wed Jul 12, 2006 10:38 pm    Post subject: Reply with quote

Ding. Ding. Ding. You are correct, SIR !
_________________
John

by hammer and hand great works do stand
by pen and thought best words are wrought
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Josiah & Eden



Joined: 21 Jul 2005
Posts: 12
Location: Portage Park, Chicago

PostPosted: Mon Jul 17, 2006 4:03 pm    Post subject: Reply with quote

Uh. Novice here. What is back glazing? I'm thinkin it's putting glazing on the interior of the glass as well as the usual exterior side. That's what we're talking about here, correct? Same principle as back priming?

Does using the sander smush it in a little better?
Back to top
View user's profile Send private message
johnleeke
Site Admin


Joined: 20 Aug 2004
Posts: 2972
Location: Portland, Maine, USA

PostPosted: Mon Jul 17, 2006 4:06 pm    Post subject: Reply with quote

Ding. Ding. Ding. You are correct, SIR !

It is also known as "bedding" the glass pane in putty.

_________________
John

by hammer and hand great works do stand
by pen and thought best words are wrought
Back to top
View user's profile Send private message Send e-mail Visit poster's website
Display posts from previous:   
Historic HomeWorks Forum Forum Index -> Windows & Doors  
Post new topic   Reply to topic All times are GMT - 5 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum