Door threshold extension installation?
I need to extend a exterior door threshold 3 inches using two extension pieces (a 2″ extension plus a 1″ ‘finish’ piece). The extension overhangs the rim joist so I’ll lag on a ‘shelf’ to support it I guess. My question is: How do I ensure good solid support? I was thinking of embedding the pieces into a 1/2″ layer of bondo buttered onto my lagged shelf. What do guys do to support an extension that projects out like this?
(More detail: Actually what is happening is that I have a 2″ layer of parged XPS on the outside of the building that the extension needs to span. Obviously I can’t rest the extension on that so hence the need for a solid shelf).
Edited 11/13/2007 6:31 pm ET by canoehead2
Edited 11/13/2007 6:31 pm ET by canoehead2
Replies
I usually just allow the threshold to lay on the shelf, or kickboard. Put on some silicone prior to installation. Ensure the kickboard is well attached to the rim, if it isn't sitting on something like the porch surface.
"I am the master of my fate, I am the captain of my soul." Invictus, by Henley.
>> I usually just allow the threshold to lay on the shelf, or kickboard. Put on some silicone prior to installation.
The bottom of the extension pieces aren't flat. There are legs (see pic) that look like they need to be compressed in order to fit into a groove in the previous piece. How do I compress it down and keep it down?
The one I have done I "glued" it in place bedding it in a discreet layer of Urethane caulk (to match the limestone it sat on) and used spring boards from the headjamb down till the next morning. Worked well, didn't force the spring boards. The urethane caulk made up any differences in ht. under the thresh and extensions.A great place for Information, Comraderie, and a sucker punch.
Remodeling Contractor just outside the Glass City.
http://www.quittintime.com/
OK. Makes sense but see my pic of the profile of the extensions I have. It seems they will compress when stepped on.
>> There are legs (see pic) that look like they need to be compressed in order to fit into a groove in the previous piece.
By the way, the leg doesn't _slide_ into the previous piece. The opening between the two horizontal legs (right side of pic) is wider than the grooves of the previous piece that they fit into. Hence the need to compress.
This is why I was thinking bondo. Just embed the whole mess into the stuff.
WHat Calvin said. Bed it in caulk (I'd probably use polyurethane for its tenacity) and either use the spring boards that Calvin mentioned, or put some weights on it overnight. Cement block, bags of readimix, your mother-n-law, whatever works. It's tempting to drill through and screw it down, but water will work its way down and rot the boards out.
Time and an infinite number of feet pressing down on it will keep it in place.
"I am the master of my fate, I am the captain of my soul." Invictus, by Henley.
The extensions I've used were similar, though not exact. The lip of the extension was placed in the groove of the threshold, then the extension rotated down and rested on the kickboard/porch. No compression required. But they aren't nearly as tall as that one in your pic, either.
"I am the master of my fate, I am the captain of my soul." Invictus, by Henley.
Like Nick said.
A great place for Information, Comraderie, and a sucker punch.
Remodeling Contractor just outside the Glass City.
http://www.quittintime.com/
OK. Thanks guys!
You apparently don't have enough vices.
If your view never changes you're following the wrong leader