Lifting porch roof to r&r columns
Cubby
I need to raise up the roof of a porch a bit to get old columns out and new
ones in. I was hoping to use the type of jacks I see (and used ages ago)
on concrete pours to plumb up the forms. Basically was thinking of
attaching a 4x4 to each end of the jack and then be able to turn the
turnscrew in the center to raise and lower the roof. First question:
What are these called? 2nd: Can I do this or am I asking for trouble?
Next, if these are not recommended for use, then I suspect I'll be heading
the bottle jack route which is fine but I'll
have to do each one individually as I don't have 4 bottle jacks (number of
colums to be removed). Thanks for any inputs.
Cheers,
cc
Robert Neville
"Cubby" <nu...@invalid.com> wrote:
Lally Column?
http://www.hammerzone.com/archives/framecarp/supplement/floor/joist1/raising.htm
Red Green
news:sI2dnYiPlaTXU-vV...@comcast.com:
How tall is the column?
What is the diameter or dimensions.
Typically I'll just cut some 2x4 or 4x4's a little longer than the post
length. Wedge it in than hammer the bottom to wedge it vertically raising
the beam above a tad and removing the weight from the post. Use a couple
per post for a warm-fuzzy. Screw or toenail top and bottom is best.
Ones I've done have only been 8-10ft and were 4x4 posts being replaced.
Holding a lot of weight but not some huge amount.
Bottle jacks: 2-ton ones at Borg for $20. Harbor Freight $10. I can see
your temp support post popping out off the bottle jack. Using the post
metod I mentioned, all you have to worry about is the two ends.
Just my .02. Heed replies from others with more extensive experience.
RicodJour
That's not a Lally column. Lally is a trademarked name, and the one
in that article is a post jack (generic term), which is different than
a Lally column. You did point the guy in the right direction, though.
The OP can use a hydraulic bottle jack, a car scissor jack, a post
jack, a railroad jack or simply use a 4x4 at an angle and some
wedges. A porch roof doesn't have much weight, and each jacking point
would probably be bearing a few hundred pounds or so - probably
wouldn't be as high as a quarter ton.
I Googled this:
jacking up a porch roof to replace a column
and came up with this as the very first link:
http://www.hammerzone.com/archives/framecarp/repair/porch/beam13/replace.htm
R
SteveB
> Typically I'll just cut some 2x4 or 4x4's a little longer than the post
> length. Wedge it in than hammer the bottom to wedge it vertically
> raising the beam above a tad and removing the weight from the post. Use
> a couple per post for a warm-fuzzy. Screw or toenail top and bottom is
> best.
>
> Ones I've done have only been 8-10ft and were 4x4 posts being replaced.
> Holding a lot of weight but not some huge amount.
>
> Bottle jacks: 2-ton ones at Borg for $20. Harbor Freight $10. I can see
> your temp support post popping out off the bottle jack. Using the post
> metod I mentioned, all you have to worry about is the two ends.
>
> Just my .02. Heed replies from others with more extensive experience.
I second this suggestion. It's the method I use on Habitat for Humanity
builds to remove temporary posts and put in a permanent 6x6 cedar post.
--
Steve Bell
New Life Home Improvement
Arlington, TX
Bob F
"Cubby" <nu...@invalid.com> wrote in message
news:sI2dnYiPlaTXU-vV...@comcast.com...
I just layed a 4x4 on the deck, across the joists, another at the top, and
another between the top one and the lifting part of an automotive floor jack
laying on the bottom one. You can prop it with more 4x4s after you get it
lifted.
Cubby
"Robert Neville" <do...@bother.com> wrote in message
news:g56jn...@news2.newsguy.com...
Thanks. Those would work. I really don't want to purchase as this is a
once off deal. I'll check with the rental places to see if they carry
them. Thanks.
cc
Cubby
That's not a Lally column. Lally is a trademarked name, and the one
in that article is a post jack (generic term), which is different than
a Lally column. You did point the guy in the right direction, though.
The OP can use a hydraulic bottle jack, a car scissor jack, a post
jack, a railroad jack or simply use a 4x4 at an angle and some
wedges. A porch roof doesn't have much weight, and each jacking point
would probably be bearing a few hundred pounds or so - probably
wouldn't be as high as a quarter ton.
I Googled this:
jacking up a porch roof to replace a column
and came up with this as the very first link:
http://www.hammerzone.com/archives/framecarp/repair/porch/beam13/replace.htm
R
Yup, saw that one before I posted. They use a bottle jack. I was hoping
to avoid buying 4-5 bottle jacks to do this. I have to lift the entire
roof (approx. 24') at the same time and leave it there
long enough to dig new footings, pour concrete, and install new posts.
This is also 150 miles from my home so chances are of me getting all of this
done in a weekend is slim so I want something that I can
put in place and not worry about it lowering the roof (ie. I worry about
that with bottle jacks).
Cheers,
cc
Cubby
"Red Green" <postm...@127.0.0.1> wrote in message
news:Xns9AD7F21EA...@216.168.3.70...
> How tall is the column?
> What is the diameter or dimensions.
>
> Typically I'll just cut some 2x4 or 4x4's a little longer than the post
> length. Wedge it in than hammer the bottom to wedge it vertically raising
> the beam above a tad and removing the weight from the post. Use a couple
> per post for a warm-fuzzy. Screw or toenail top and bottom is best.
>
> Ones I've done have only been 8-10ft and were 4x4 posts being replaced.
> Holding a lot of weight but not some huge amount.
>
> Bottle jacks: 2-ton ones at Borg for $20. Harbor Freight $10. I can see
> your temp support post popping out off the bottle jack. Using the post
> metod I mentioned, all you have to worry about is the two ends.
>
> Just my .02. Heed replies from others with more extensive experience.
Post is about 10 ft and is in two sections. One section runs from the beam
overhead to the top of the deck and the other piece runs from
just under the decking to the ground. This idea would work and I may go
this route. I'll have to get additional ply as there's nothing but dirt
under the deck but that shouldn't be too hard. Thanks!
cc
Cubby
"Bob F" <bobn...@gmail.com> wrote in message
news:ZNCdnX_Pm4t-FurV...@comcast.com...
Thanks. I may be able to use this idea as well. I have to demo the deck
but perhaps I can do this from the ground up.
Cheers,
cc
Red Green
news:rPOdnfOTDdaFYerV...@comcast.com:
If nothing around the house that's handy and would fit the bill then
first thought is to put some concrete cap blocks for foot. They are solid
and like 4x8x16. $1.50-2.00 and pretty much a staple item at the Borg.
Bob F
Jack it up, insert 4x4s, and lower it on them.
cruz
--
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