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  1. #1
    Join Date
    Oct 2013

    Default Infilled exterior door

    my house has an exterior door that was infilled. There was a large amount of air coming in from the exterior where it was infilled, so I decided to open it up to see what the problem was. I found out that no air sealing was done which explains the draft, but I also found out that the old wood threshold and sub-sill are rotten. I can see through to the top of the foundation. See pictures here: (forum won't let me post pictures). How would you go about fixing this? I'm covering it back up, so it doesn't have to be pretty.


  2. #2
    Join Date
    Jan 2008

    Default Re: Infilled exterior door

    Rotted wood is to always be replaced, even where it's not visible. You need to remove and replace all the suspect wood for structural reasons. Try poking a flat-bladed screwdriver into the wood- if it goes in then replace the wood. If it only dents it a little you can leave it if there are no other issues involved.


  3. #3
    Join Date
    Jul 2010

    Default Re: Infilled exterior door

    From your photos I can see the extent of the rot. As Phil mentioned, you will have to clear all damaged wood first, before you can continue.

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