Wood Sill Salvage

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Old 07-10-20, 07:43 AM
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Wood Sill Salvage

How would you recommend saving this sill? Sand down, apply wood filler, prime and paint?

 
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Old 07-10-20, 07:48 AM
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How deep does the rot extend?
 
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Old 07-10-20, 08:59 AM
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I'm not fond of using filler, if you don't remove all the rot the filler will fail. I'd probably cut out the rot and inlay new wood .... or replace the sill entirely.
 
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Old 07-10-20, 12:53 PM
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The rot runs deep... Just pushed a nail clean through the sill both ways.

Will hire a handyman to repair or replace. Many thanks.
 
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Old 07-10-20, 12:56 PM
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I take a multimaster (oscillating saw) with a 2 2/3" blade and make plunge cuts plumb (straight down) from the step in the sill, cutting off the rotten nose completely. Then cut a new one (on a table saw) to fit, out of Azek (pvc) and screw it on with 4" ceramic coated finish screws. Then fill the holes and sand the edges so they have a slight round over. Then caulk and paint.
 
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Old 07-10-20, 03:50 PM
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The rotten portion of the sill doesn't appear to have any slope inside to outside. If replacing as suggested in previous post, make sure there is a slope
 
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Old 07-11-20, 02:37 AM
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Then cut a new one (on a table saw) to fit, out of Azek (pvc) and screw it on with 4" ceramic coated finish screws. Then fill the holes and sand the edges so they have a slight round over. Then caulk and paint.
When I make a repair in that manner I like to apply caulk between the old wood and the new just before I fasten them together, remove any excess that squeezes out and then finish caulking the joint.
 
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