replace rotted loli columns
#1
12-09-02, 07:30 AM
replace rotted loli columns
Hi,
I have a 104 year old farmhouse with a sometimes wet concrete basement. The centerbeam was supported by remodeling style steel loli columns set directly on the floor. They've all rotted out on the bottom and I need to replace them.
Any recommendation on best way to replace them? I'm thinking of using solid concrete blocks leveled in a bed of mortar as pads to get the posts off the floor and replacing the rotted loli columns with either same type or with preasure treated 4x4 posts. Are wood posts and/or jacking type columns generally permitted by code? Am I okay with pads or do I need to cut into the floor and sink soni-tubes down (I believe my floor is at least 6" deep but would test before using the pads).
Thanks for your advise!
Randy
I have a 104 year old farmhouse with a sometimes wet concrete basement. The centerbeam was supported by remodeling style steel loli columns set directly on the floor. They've all rotted out on the bottom and I need to replace them.
Any recommendation on best way to replace them? I'm thinking of using solid concrete blocks leveled in a bed of mortar as pads to get the posts off the floor and replacing the rotted loli columns with either same type or with preasure treated 4x4 posts. Are wood posts and/or jacking type columns generally permitted by code? Am I okay with pads or do I need to cut into the floor and sink soni-tubes down (I believe my floor is at least 6" deep but would test before using the pads).
Thanks for your advise!
Randy
#2
12-09-02, 04:24 PM
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Randy,
I am assuming that this is an old 2 story structure. When you say 104 years old, with a sometimes WET basement floor, I immediately have concerns about the support posts and it's footing. I would want to know what is there instead of relying on an existing 6" slab. The slab itself is not a reliable pad footing for the new post replacements.
I doubt seriously that it had any put in and not knowing your soil conditions, the WET word always gives me questions that say, install proper post footings, like a 30 x 30 x 10, IN UNDISTURBED SOIL.
You're right, break out some concrete to accommodate and do it right. Use either metal post anchors and insert a 4x4 minimum W/T post or replace with metal, adjustable hi-lo is acceptable as per code.
Properly install temp posts on both sides of your new pad footings to insert your new posts.
Hope this helps!
I am assuming that this is an old 2 story structure. When you say 104 years old, with a sometimes WET basement floor, I immediately have concerns about the support posts and it's footing. I would want to know what is there instead of relying on an existing 6" slab. The slab itself is not a reliable pad footing for the new post replacements.
I doubt seriously that it had any put in and not knowing your soil conditions, the WET word always gives me questions that say, install proper post footings, like a 30 x 30 x 10, IN UNDISTURBED SOIL.
You're right, break out some concrete to accommodate and do it right. Use either metal post anchors and insert a 4x4 minimum W/T post or replace with metal, adjustable hi-lo is acceptable as per code.
Properly install temp posts on both sides of your new pad footings to insert your new posts.
Hope this helps!
#3
12-10-02, 04:50 PM
Member
In a recent episode (Program #107) of "Ask This Old House," they dealt with exactly this problem. If you go to www.thisoldhouse.com, you can read more about it.
