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Hardscrabble
Decaying wood windows
Hardscrabble

I have some aging "Pella" wood windows in my home that need some attention. The inside wood is in supreme condition and the outter sashes are also in very good condition. However, the window sill itself is cracking and in a few places is rotting. I have used a "minwax" product - wood hardener to some avail but would definitely like to know if there is a better fix -- sill replacement or repair?

ordjen
Re: Decaying wood windows
ordjen

Did you then use the Minwax Woodfiller? The hardener simply prepares the old rotted out wood for the application of the wood filler. You dig out the rotted wood until you find relatively sound wood, then coat it with the hardener liquid.The hole is then filled with the wood filler. In my opinion, the wood filler is nothing more than"Bondo" with a wood color to it. I have used Bondo for years top fix rotted sills. They are both catalyzed polyesters.

Mastercarpentry
Re: Decaying wood windows
Mastercarpentry

Ditto on the bondo repairs. I've not found any difference in the performance of they automotive kind versus the 'made for wood' kind so I go with the cheaper automotive option. There are also epoxy fillers made for this kind of repair but they're even more costly. One aspect of the bondo which I like over any other fillers is that I can control the rate of hardening with the mix so I can make it 'hot' and finish the repaired area within the hour, while other fillers may make me wait till tomorrow- time is money! Unless you have experience mixing bondo get the kind with a colored hardener and mix a small 'test batch', noting the color and how long it takes to set. Mix too 'hot' and it can be rock-hard in under 2 minutes, mix too 'cool' and it may not harden till tomorrow. Most colored hardeners are red; go for a deep pink-to-red color range for about 5 minutes to the beginning of hardening.

In the long-term, the repaired wood will continue degrading no matter which kind of repair is made so I kind of doubt that it really matters as long as the filler goes at least that far along. How long that is is dependent on how much has rotted away where and how well you get rid of it before filling.

Phil

RobinJoyZook
Re: Decaying wood windows
RobinJoyZook
Hardscrabble wrote:

I have some aging "Pella" wood windows in my home that need some attention. The inside wood is in supreme condition and the outter sashes are also in very good condition. However, the window sill itself is cracking and in a few places is rotting. I have used a "minwax" product - wood hardener to some avail but would definitely like to know if there is a better fix -- sill replacement or repair?

Have you heard of Sill-rite? Check out the website at www.sill-rite.com. You will love it. Take out the old and just glue this on and caulk . That is it! It wil protect the sill and it looks amazing! great for wet climates.

RobinJoyZook
Re: Decaying wood windows
RobinJoyZook

Have you heard of Sill- rite? It is a vinyl window sill that you can just glue on and caulk! www.sill-rite.com :) It is great for damp climates and it looks fantastic! Tell them Robin sent you!

dj1
Re: Decaying wood windows
dj1

There is also a "sill shield" available on line. A vinyl cover for your existing sill - no need to remove old sill, if not rotten.

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