Thursday, October 10, 2019

Exterior Baseboard Trim

Here is a picture of the exterior baseboard trim that I will recreate for the rear of the house. It's critical that the water shed away from the house. Some exterior renovations get this part wrong and end up just caulking the bottom between the clapboard and base trim. That's just silly. Not the easiest cut to do on a table-saw though.


Seth said...

That is an interesting detail. I have not seen that style before, but it's a neat way to make a more streamlined transition while maintaining adequate water protection. Our last house had the more traditional projecting drip cap on top of a 3/4" flat board (which I believe is often called the water table). The drip cap had a groove sign in the bottom of the projecting portion to act as a capillary break and prevent watter drom being drawn along thr bottom and through the joint with the water table board below.

Nearly all of the drip edge trim had been crudely hacked off by thr asbestos siding installers, so I had to make new material when I restored the original siding. It was pretty straightforward on the table saw, even the capillary groove.

I am frustrated to see how often the average carpenter or painter gets this stuff horribly wrong, though. Either just butting the bottom clipboard into the too of the water table and caulking it, or using a narrow ripped 3/4" board projecting horizontal. All pretty much guaranteed to cause rot. I guess people cant remember that water runs downhill, and even horizontal without capillary breaks.

Our new house is all brick, but even the limestone window sills have capillary break grooves in the bottom.

American Foursquare Restoration said...

Hi Seth. Interesting. You were able to make this cut with just a table saw? I'm obviously over thinking it here and will give it a shot. I would LOVE to have an all brick or stone house. Less exterior painting sounds great to me!