Sagging Floor Joists in a house we are buying
word_doc
18 years ago
Featured Answer
Sort by:Oldest
Comments (17)
sdello
18 years agolast modified: 9 years agoUser
18 years agolast modified: 9 years agoRelated Discussions
Replace ledger strip with joist hangers (floor joist support)
Comments (9)brickeyee: I think I will leave a piece of the existing ledger strip under the existing joist as packing material, and use plenty of construction adhesive in the joist. Sound reasonable? worthy: Ah, I never thought it made a difference where on the end the notch is, especially since most cuts I've seen are on the bottom for a ledger strip/board. worthy: Are you being sarcastic about the "Neither do I" comment? I hope not because I honestly don't know how to get a single joist hanger into a new joist that's being sistered and neither do the 3 contractors who I got quotes from. So, we're going to use double-wide custom made joist hangers for everything because the existing joists are 1.75" actual width and the new 2X8 SYP is 1.5", making an unusual 3.25" width for the joist hanger....See Morereplacing sagging floor joists- Advice anyone?
Comments (9)Since these joists are going to have "memories" of this sagging shape, I think it will be hard to jack it up into position. Since you want to maintain headroom in the basement I would put a main beam in the middle of the floor engineered for the span. Maybe two LVL's around a 1/2" steel flitch plate, bolted together. You would cut out a gap down the middle of all the floor joists. Insert the LVL sandwich and jack it into the height you want. Attach the individual joists to the LVL sandwich. This will require temporary support walls, jacking into position both sides of the bisected joists and a few other issues. If there's a second floor involved, it's more complicated due to the extra loads involved. Depending on the depth of sag, expect to patch walls and possible rehang doors. The size of the beam would need to be spec'ed out by someone who knows what they're doing. This is not a "best guess" project. Ron...See MoreNeed advice...rotten floor joists in house I'm buying
Comments (7)There are two things to think about here: repair/remediation and corrective work to prevent the problem from recurring. When you get your estimates try to break down the jobs and see how much preventive work is included, as that will affect your long term situation. Things that would be preventive would be (in no particular order) 1) work around the outside of the house to improve or correct drainage problems (i.e. regrading to divert surface water) to avoid ponding or flooding that comes in the building; 2) work on the foundation to divert exterior soil moisture from penetrating the foundation and entering the house as either actual water or localized increased water vapor in the soil; 3) work on the cellar floor to inhibit rising water vapor from coming up into the crawl space or basement and under the floor joists - on way would be moisture vapor retardant fabrics that can be laid down on bare soil; 4) work to provide forced fan ventilation to move moisture-laden air from under the floors to the outside of the building enevelope. (Surprisingly, this can sometimes create more problems than it solves, so it might not be the best solution.) Any, or all of these things might prevent a recurrence of the rot. Fixing the already rotted floor joists is not that big a deal (unless you are paying for it!) Sometimes modestly rotten ones can be treated and "sistered" which means attaching aditional supporting memebers to the weak ones to share the load. Even replacing the floor joists is not that troublesome, even with some house jacking involved (provided you get a knowledgeable house mechanic to do the job). Depending on your framing system you may or may not need to replace portions of the floor if you replace some floor joists. Also pay attention to where the rotted floor joists join the sill and, in turn, the adjacent vertical parts as sometimes the rot can extend beyond the obvious. Jacking may slightly damage your plaster but if it done correctly and slowly it is quite surprising what these old houses can stand! Also I know you are under contract but I think if problems not visible before the inspection come to light and they would require additional preventive measures, not just repairs, I can't see why you'd be obliged to close on it. IMO house inspections are always opportunities for buyers and sellers to break it off. Since it looks as though you may be joining the old house wing-nut fraternity, here's something you may find useful: I've attached a link to the most relevant Preservation Brief from the National Parks Service. This one deals with management of moisture problems in old houses which should be topical for you, just now. It is one of a very helpful series on many subjects related to old house care. You can see the other subjects by clicking on the bottom of the page on the link. Good luck! Molly~ Here is a link that might be useful: Preservation Brief on Managing Moisture Problems in Old Structures...See MoreBuying a home with cracked floor joists?
Comments (2)Never mind, got an answer on another forum....See Moreword_doc
18 years agolast modified: 9 years agokudzu9
18 years agolast modified: 9 years agosdello
18 years agolast modified: 9 years agokudzu9
18 years agolast modified: 9 years agoword_doc
18 years agolast modified: 9 years agosdello
18 years agolast modified: 9 years agokudzu9
18 years agolast modified: 9 years agofixinfool
18 years agolast modified: 9 years agolightingbolt
18 years agolast modified: 9 years agodogeatshouse
16 years agolast modified: 9 years agosherrielynn
16 years agolast modified: 9 years agobuddy_gonewiththewind_com
15 years agolast modified: 9 years agojoed
15 years agolast modified: 9 years agokweymouth
10 years agolast modified: 9 years ago
Related Stories
MOVING5 Risks in Buying a Short-Sale Home — and How to Handle Them
Don’t let the lure of a great deal blind you to the hidden costs and issues in snagging a short-sale property
Full StoryREMODELING GUIDES5 Ways to Protect Yourself When Buying a Fixer-Upper
Hidden hazards can derail your dream of scoring a great deal. Before you plunk down any cash, sit down with this
Full StoryFURNITUREHow to Buy a Quality Sofa That Will Last
Learn about foam versus feathers, seat depth, springs, fabric and more for a couch that will work for years to come
Full StoryFURNITURESmart Shopper: How to Buy a Mattress
Confusing options, hair-raising prices, haggling ... Our guide can keep you from losing sleep over mattress shopping
Full StoryKNOW YOUR HOUSEKnow Your House: What Makes Up a Floor Structure
Avoid cracks, squeaks and defects in your home's flooring by understanding the components — diagrams included
Full StoryKITCHEN DESIGNThe Kitchen Storage Space That Hides at Floor Level
Cabinet toe kicks can cleverly house a bank of wide drawers — or be dressed up to add a flourish to your kitchen design
Full StoryREMODELING GUIDESHouzz Tour: A Former Stable Becomes a Live-Work Showcase
Two floors in a Washington, D.C., building get an extensive rehab to house a family and an architectural practice
Full StorySHOWERSYour Guide to Shower Floor Materials
Discover the pros and cons of marble, travertine, porcelain and more
Full StoryDECORATING GUIDESFinish Your Floors to Perfection With Parquet
Add value and gorgeous detail to your home with timeless and elegant parquet flooring in a classic design
Full StoryFLOORSKnow Your Flooring: Concrete
Concrete floors have a raw and elegant beauty that can be surprisingly warm
Full Story
word_docOriginal Author