Replacing Portions Of Bottom Plate - Remodeling - Page 3 - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Remodeling

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Like Tree4Likes
Reply
 
Thread Tools
Display Modes
Old 06-01-2019, 07:38 PM   #31
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by Nealtw View Post
Is the floor concrete or wood? I have seen both look like this.
Floor in this room is tile on concrete.
jbrah is online now   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-01-2019, 07:44 PM   #32
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


The footing and foundation were poured and the house is built, just the bearing walls and the floor was poured later. Only in the last 30 years has it been important to make the concrete curb the same level as the floor. Then the other walls are built last.

That would also explain why there is one top plate, not called for on a non bearing wall.
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-01-2019)
Sponsored Links
Advertisement
 
Old 06-01-2019, 08:03 PM   #33
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by Nealtw View Post
The footing and foundation were poured and the house is built, just the bearing walls and the floor was poured later. Only in the last 30 years has it been important to make the concrete curb the same level as the floor. Then the other walls are built last.

That would also explain why there is one top plate, not called for on a non bearing wall.
Yeah, and it also explains why the interior wall only has one bottom plate - as you said, it would have been built last, after the floor was poured.

So the upshot for me is I have to remove and replace both 2x4 bottom plates on the exterior walls. Guess I'll need to get longer tapcons to secure the bottom plates to the concrete.
jbrah is online now   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-01-2019, 08:11 PM   #34
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by jbrah View Post
Yeah, and it also explains why the interior wall only has one bottom plate - as you said, it would have been built last, after the floor was poured.

So the upshot for me is I have to remove and replace both 2x4 bottom plates on the exterior walls. Guess I'll need to get longer tapcons to secure the bottom plates to the concrete.
The bearing wall would be better with anchor bolts every 4 or 5 ft.

And put sill gasket between wood and concrete even if you are doing treated wood.
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-01-2019)
Old 06-01-2019, 09:03 PM   #35
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by Nealtw View Post
The bearing wall would be better with anchor bolts every 4 or 5 ft.
So wedge anchors and hot dipped galvanized since going through pressure treated lumber? Something like this:
https://www.concretefasteners.com/1-...hor-galvanized

Pricey!

Quote:
Originally Posted by Nealtw View Post
And put sill gasket between wood and concrete even if you are doing treated wood.
Will do. Something like this?
https://www.homedepot.com/p/Owens-Co...-1FS/202084452
jbrah is online now   Reply With Quote
Old 06-01-2019, 09:14 PM   #36
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by jbrah View Post
So wedge anchors and hot dipped galvanized since going through pressure treated lumber? Something like this:
https://www.concretefasteners.com/1-...hor-galvanized

Pricey!

Will do. Something like this?
https://www.homedepot.com/p/Owens-Co...-1FS/202084452
Yes and yes. The non bearing wall can be pinned or screwed.
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-02-2019)
Old 06-03-2019, 08:48 AM   #37
Member
 
Join Date: Aug 2011
Location: Washington, DC area
Posts: 1,172
Rewards Points: 2,247
Default

Re: Replacing portions of bottom plate


That stuff is a ***** to keep from rolling back up again.
huesmann is offline   Reply With Quote
Old 06-03-2019, 04:24 PM   #38
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by huesmann View Post
That stuff is a ***** to keep from rolling back up again.
Cut it to length and staple it to the bottom of the plate before you put it in.

Often hard to do when sliding the plate in then change to poly and wrap the far side and staple it to the bottom and far side.


Or paint the bottom with redgard
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
Old 06-06-2019, 01:40 PM   #39
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


So here's my gameplan for replacing bottom plates on exterior walls - please let me know if I'm doing something incorrectly or inefficiently.
  1. brace wall as discussed earlier in thread
  2. pull toe nails out of the studs. I could cut the toe nails going into the floor plate with a recip saw, but then I'd need to shim all the studs on that wall, even the good studs. Figure if I can pull the toe nails out, that will save me the trouble of shimming.
  3. cut nails entering floor plate from the sheathing
  4. cut section(s) of floor plate and remove
  5. cut any nail studs protruding from sheathing flush with sheathing
  6. cut new treated 2x4 to size, and dip cut end in wood preservative, like this stuff: https://www.homedepot.com/p/1-qt-Cop...-QTS/202688831
  7. drill concrete for wedge anchor bolts
  8. install sill plate gasket: https://www.homedepot.com/p/Owens-Co...klyqz1BU12mTo0
  9. apply construction adhesive to back side of new treated 2x4 (to adhere new floor plate to sheathing)
  10. install new treated 2x4.
  11. install wedge anchor bolts, something like this: https://www.concretefasteners.com/1-...hor-galvanized
  12. sister new studs to badly damaged studs. With the wall deloaded, I'm guessing the new studs can be cut to the exact same height as the old studs and they will easily tap in with a hammer. Then construction screws to sister, driving screws only into areas of the damaged studs where the wood is still solid.
  13. remove bracing and reload repaired framing.
  14. use hot dipped galvanized construction screws to secure existing studs to new floor plate. Going with screws since that will be easier than trying to drive nails at an angle.
jbrah is online now   Reply With Quote
Old 06-06-2019, 01:59 PM   #40
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


@jbrah a couple points. The sill gasket will not want to fit in there unless you have really lifted the wall up. Sheet poly may be a better way to go.
A rotary hammer drill will go thru the wood too, so install the plate and then drill the holes for anchors. Any studs that are questionable that you are leaving or even anything that has water stains can be painted with the copper treatment first.


To attach sheeting, no glue, after you are done with the wall sitting back on the floor, pre drill blocks of 2x2 and screw them down to the plate next to the sheeting and use 2" screws into the sheeting. You can add glue to the 2x2s
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-06-2019)
Old 06-06-2019, 08:44 PM   #41
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


With pressure treated wood (like the WeatherShield lumber at Home Depot), that is going to serve as bottom plate, do I have to let it acclimatize for 24 hours (or more) or can I bolt it to the concrete right away?

Speaking of bolting to concrete, so for the exterior walls, my understanding is 1/2" diameter anchor bolts with minimum 7" embedment, so for doubled up bottom plates, that's 10" of length, plus a bit extra for a nut, so ~11" long wedge anchors. Does that sound correct?

What about interior walls? I've got one interior wall in that room. Obviously the concrete isn't going to be 7" deep there. Maybe 2" embedment is good enough - with a single bottom plate, I'd be looking at 4" long wedge anchors?
jbrah is online now   Reply With Quote
Old 06-06-2019, 10:34 PM   #42
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by jbrah View Post
With pressure treated wood (like the WeatherShield lumber at Home Depot), that is going to serve as bottom plate, do I have to let it acclimatize for 24 hours (or more) or can I bolt it to the concrete right away?

Speaking of bolting to concrete, so for the exterior walls, my understanding is 1/2" diameter anchor bolts with minimum 7" embedment, so for doubled up bottom plates, that's 10" of length, plus a bit extra for a nut, so ~11" long wedge anchors. Does that sound correct?

What about interior walls? I've got one interior wall in that room. Obviously the concrete isn't going to be 7" deep there. Maybe 2" embedment is good enough - with a single bottom plate, I'd be looking at 4" long wedge anchors?
For a single plate we did a 4 1/2" anchor or there abouts.
Wet lumber wants to be put in and nailed in place and bolted before it warps so it drys straight. When they are wet you can bend them to where you want them.
Non bearing walls can be pinned down, drill a 3/16" hole thru the 2x4 into the concrete. put in 2 pieces of rebar tie wire or nylon string from a weed eater and drive a 3" nail in it. One close to ends and near doorways and then every 2 ft.
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-07-2019)
Old 06-07-2019, 09:04 AM   #43
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by Nealtw View Post
Non bearing walls can be pinned down, drill a 3/16" hole thru the 2x4 into the concrete. put in 2 pieces of rebar tie wire or nylon string from a weed eater and drive a 3" nail in it. One close to ends and near doorways and then every 2 ft.
The interior wall is perpendicular to the joists above it, so I assume that makes it load bearing?
jbrah is online now   Reply With Quote
Old 06-07-2019, 10:15 AM   #44
retired framer
 
Join Date: Jun 2017
Location: Fraser Valley BC Canada
Posts: 25,272
Rewards Points: 18,434
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by jbrah View Post
The interior wall is perpendicular to the joists above it, so I assume that makes it load bearing?
It won't hurt to bolt it down either way but keep the bolts on the short side in case the floor is thin.
__________________
Do not use flat bottom gables with scissor trusses.
Nealtw is online now   Reply With Quote
The Following User Says Thank You to Nealtw For This Useful Post:
jbrah (06-07-2019)
Old 06-07-2019, 10:40 AM   #45
Member
 
Join Date: May 2018
Location: Long Island NY
Posts: 92
Rewards Points: 180
Default

Re: Replacing portions of bottom plate


Quote:
Originally Posted by Nealtw View Post
It won't hurt to bolt it down either way but keep the bolts on the short side in case the floor is thin.
Thanks. Thinking I'll use 1/4" x 2-3/4" blue tapcons. Cheaper than hot dipped galvanized wedge anchors, short enough to work in thin slabs, easy to remove if the bottom plate ever needed to be moved in the future.
Nealtw likes this.
jbrah is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Assistance in assembling temporary wall - replacing top plate. MKMaster Building & Construction 5 07-18-2016 02:07 PM
1910 Beach Bungalows: Replacing all joists & subfloor on imperfect sill plate alheim Building & Construction 7 04-14-2015 07:43 AM
Sill plate, sole plate, bottom plate -- please "un"-confuse me. Dave88LX Building & Construction 25 12-04-2013 07:30 AM
Replacing sill plate - foundation wall repair NWChris Building & Construction 0 09-14-2013 12:05 PM
Bottom plate and notched studs miamicuse Carpentry 7 06-04-2013 08:27 PM




Top of Page | View New Posts