Older Window Mutins

blakeasAugust 20, 2008

I have a home built in 86 - seems like the windows are original. The mutins on the outside of the window seem to have a problem. they are developing cracks and some of the wood is flaking off. it seems like the mutin is a 3 part wood. Can i just take the side of the mutin off and caulk to repair? Any suggestions?

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mightyanvil

Is the window putty glazed true-divided-light single-glazed or is it simulated-divided-light double-glazed?

I doubt that caulk would be a good solution in either case.

    Bookmark   August 20, 2008 at 10:39PM
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blakeas

"putty glazed true-divided-light single-glazed or is it simulated-divided-light double-glazed"

I am not sure as I am not an expert in these things. would a picture help? doubleglazed means 2 pieces of glass? I only think i have 1 pane of glass..

Well if caulk does not work than what should I do?

    Bookmark   August 22, 2008 at 12:29PM
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worthy

Unless this is a really picky custom house, I'm sure they're only simulated, ie., one piece of glass with wood on the outside to imitate the look of older windows. Exterior wood filler can be used. Since this is wood, expect to touch up and repaint every few years.

    Bookmark   August 22, 2008 at 9:40PM
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mightyanvil

Single glazed true divided light glass is probably installed from the outside with tiny metal clips and sealed to the muntins with putty. The putty has probably gotten brittle and is falling out. You will need to remove the rest of it and install new putty. I suggest you hire someone who knows how to do it.

    Bookmark   August 22, 2008 at 10:48PM
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arlosmom

Hi blakeas. I'm not a window pro, but have live in old houses. I looked at your pictures and I think mightanvil is correct. The glazing or putty is old and cracked. It needs to be removed and replaced. Its a fairly straightforward job for any house painter.

    Bookmark   August 23, 2008 at 9:04AM
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blakeas

I have a broken muntin or bottom pane part:

the wood frame seems to have a groove in it. And this part that is coming off seems to have a slot to fit into the groove. This is also happenning to all of my muntins - but this is the only thing that flaked off.

    Bookmark   August 24, 2008 at 1:15PM
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worthy

That certainly looks like putty, in which case it should be all removed and replaced as arlosmom says.

    Bookmark   August 24, 2008 at 4:33PM
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brickeyee

It is not wood, but glazing putty.

Dap 33 is a good brand.
Remove as much of the putty from each light using a putty knife.
Wipe the old surface clean with paint thinner, then apply new putty.
It takes a little practice to work the putty in your hand to the correct temperature before pressing it into place and then striking it off with a putty knife.

    Bookmark   August 25, 2008 at 8:19PM
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blakeas

How do I make a professional edge like in my current muntins?

    Bookmark   August 26, 2008 at 8:58AM
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arlosmom

nice soft putty, a putty knife and a lot of practice.

    Bookmark   August 26, 2008 at 4:33PM
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blakeas

Should I just replace the window itself? Leave the frame but do the sashes? If so, where do I start looking to do that myself? And how do I know what my frames will accept?

    Bookmark   September 3, 2008 at 3:13PM
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patser

If you have money to waste, go ahead and replace the sashes.

If you aren't comfortable replacing the putty, find a window restoration (RESTORE, not replace) in your area. Pay to have 1 window done, closely watch what the restorer does, then do the rest yourself.

    Bookmark   September 3, 2008 at 4:26PM
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mightyanvil

The cheapest possible way to repair your windows is to hire somepne who knows how to do it. You will be amazed at how fast they can install a glass pane and how much better it will look. You can paint the sash yourself but ask the glazer to show you how to do that properly.

It would cost a small fortune to replace all of the sash. If you want better looking, more energy efficient windows for great expense consider replacement windows, but don't imagine you can install them yourself.

    Bookmark   September 4, 2008 at 1:50PM
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bostonpam

My husband and I reglazed our 2nd floor windows in '99 (30 6 over 6 double hung windows). The 1st couple weren't pretty but we soon got a hang of it. We made sure the first few were in the kids' bedrooms. It saved us over $15k. I plan to reglaze the 26 windows on the 1st floor myself this year during our major renovation project. Our house was built in 1825 and some of the windows are original. Most of them are from a major renovation from 1910's. I would never consider replacement windows on an historic house.

    Bookmark   September 9, 2008 at 11:50AM
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brickeyee

There is a real knack to getting the putty the right consistency to work and strike off smoothly with the putty knife.

During the spring and fall it is not to bad.
Hot weather makes the putty to soft and sticky, so I keep the can in an ice cooler.
It gets to cold usually, but working it a few minutes in your hands softens it up.
In winter it takes longer to warm it up by working in your hands, and if you wait to long to strike off it gets hard.

    Bookmark   September 9, 2008 at 10:05PM
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