Ask This Old House general contractor Tom Silva teaches a homeowner how to repair some structural problems in his home.
SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse
Time: 6-7 hours
Cost: $100
Skill Level: Expert
Tools List for Repairing a Damaged Carrying Beam:
– Bottle jack [https://amzn.to/2JcJtFB]
– Grinder [https://amzn.to/2XeTdc7]
– Large pipe cutter [https://amzn.to/2XCBfzJ]
– Cold chisel [https://amzn.to/2FD53lA]
– Hammer [https://amzn.to/2ZYmuFc]
– Level [https://amzn.to/2XEHMKj]
– Drill [https://amzn.to/2Jigb8K]
– Pry bar [https://amzn.to/2XC5iaF]
Shopping List:
– Temporary post [https://amzn.to/2XA3HCf]
– Steel lally column [https://amzn.to/2Xf7mWJ]
– Wood screws [https://amzn.to/2ZSyQyn]
– Masonry screws [https://amzn.to/2RKIv7h]
– Angle iron [https://amzn.to/2XuXRSX]
Steps:
1. Use the jack and the temporary post to support the structure before removing any posts.
2. Remove the old lally column with a grinder.
3. Measure and mark the replacement column and cut it to size with the large pipe cutter.
4. Smooth out the bottom of the new cut with a hammer and cold chisel.
5. Put the post in place on metal plates and slowly remove the temporary post. Check the post for level before putting the full weight of the house back on it.
6. Screw the metal plates to the beam and to the floor with the appropriate screws.
7. To repair damaged beams, locate a local welder or metal shop and request angle iron, cut and drilled to the length of the beam being repaired.
8. Remove any pipes, wires, etc. currently going through the beam. Be sure to turn off the water, power, etc. before doing so.
9. Pry the joist hanger away from the beam.
10. Mount the angle iron on the jack and the temporary post. Get the angle iron in place and slowly raise the jack until the angle iron is wedged up against the damaged beam.
11. Screw the angle iron into the beam and remove the temporary post.
12. Slide any pipes or wires previously removed back through the beam and turn the water and power back on.
Resources:
Lally columns and the lumber used for the bridging can be found at the local home center or the local lumberyard.
Steel angle iron can be ordered to size and is sold at metal or welding shops.
Special assistance with this project was provided by Boston Welding (http://www.bostonwelding.com/).
In the workshop, Tom shared some basic rules for cutting and notching joists and rafters. For cutting holes, a hole can be no more than ⅓ the depth of the structure and cannot be within 2″” of an edge.
For notches, the maximum notch depth is ½ the depth of the structure and no notches can be made in the middle ⅓ of the span.
About Ask This Old House TV:
Homeowners have a virtual truckload of questions for us on smaller projects, and we’re ready to answer. Ask This Old House solves the steady stream of home improvement problems faced by our viewers—and we make house calls! Ask This Old House features some familiar faces from This Old House, including Kevin O’Connor, general contractor Tom Silva, plumbing and heating expert Richard Trethewey, and landscape contractor Roger Cook.
Follow This Old House and Ask This Old House:
Facebook: http://bit.ly/ThisOldHouseFB
Twitter: http://bit.ly/ThisOldHouseTwitter
http://bit.ly/AskTOHTwitter
Pinterest: http://bit.ly/ThisOldHousePinterest
Instagram: http://bit.ly/ThisOldHouseIG
http://bit.ly/AskTOHIG
Tumblr: http://bit.ly/ThisOldHouseTumblr
For more on This Old House and Ask This Old House, visit us at: http://bit.ly/ThisOldHouseWebsite
How to Repair a Damaged Carrying Beam | Ask This Old House
https://www.youtube.com/user/thisoldhouse/
6:15 I've seen angle iron on a highway before. It was not a good time for anyone.
That one lag screw he put in is striped lol
This is great! I have a girder beam under my living room with 2 ft of old termite damage. I think this will fix the problem.
angle iron must rest on the support beam on both sides so that it replaces damaged and cut center wooden beam.
it does little in this repair. for example if beam splits in half right where previous contractor cut a huge hole, than steel angle will hold two pieces of beam via lig bolts… since it is screwed on one side, beam will twist and break. basically useless
I am surprised that the steel reenforcement angle did not extend to where the new post was installed to make the reenforcement more secure. Is there a reason? Was it cost? Or am I missing something fundamental?
So happy to I 🎉found this video, thank you
Hello,
I presently live in a home that have sagging floors. I have decided to purchase jacks and lift the floors from the basement. My question is are there any prep work required on the 1st and 2nd floor prior to installing the kicks and lifting? Do I need to be concerned with baseboard trim, door trim, or anything. I have received my drawings on where to place the jacks. I understand that my plaster and drywall will also begin to crack in some areas. I just want to get level floors before I purchase my new doors and install new trim.
The house I'm in some knucklehead build a bulkhead basement exit framing the door centered on the carrying beam , so the beam is centered over the door frame …..
Do you have any videos on the cylinder block wall starting to crumble, where the main (steel) beam rests?
Wouldn't you want the support post under the steel?
8:04 You stripped that one out Tommy!
What's the size of that large pipe cutter and where did u get it? b/c the largest i've seen is only a 3" and that Lally column seems at least 4" in Diameter
That's criminal cutting a big hole through a main beam.
That’s white man knowledge right there
you overtightened that lag screw
Can you tell me where I could order one of Lolli columns with the Concrete in it
I'll send the bill for $13, 999.53 in the mail tomorrow.
All these fools in the comments with their Facobook degrees 😂😅😂😅😅
Shark bite fittings suck!!! That don’t seal worth crap I’ll solder all my copper thanks pex pipe is garbage as well it’s just a cheap skates way of doing it to lazy to fit pipes through walls and solder then seal it all with a crappy fitting that will eventually leak to many times have I seen it happen copper and silver solder only for me
This video is non compliant with earthquake movement. It is completely wrong to do this the way shown here. Atleast 10 mistakes. Read California construction codes. These also help in tornado and hurricane movement