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Carpentry & Joinery
How to fix sagging bedroom/loft ceiling joist - repair or replace?
Anonymous user 8 January 2020 - 12.34 AM
thanks for all your quick responses - if i replace 16.5ft long 6x2 ceiling joist one at a time would be ideal for me! but my only concern is wiggle room for placing joist on top of wall each end between rafters where they need to be is this possible without having to remove tile and felt? only other worry is getting 16.5ft 6x2 joist in to the house was going try through window which im not 100% it will go through!lol how does this plan sound instead of 16.5 long joist to shorten it by half then adding 6x2 joist i middle cross ways then connect 6x2 joists length ways to that with hangers to that acting as cross member support then 2 rows of noggins perpendicular. sounds like plan my only big worry i have if i remove all bedroom ceiling/ loft floor joist is there risk of roof collapsing? thanks again in advance :)
4 answers from MyBuilder tradespeople
When we talking about building construction elements, never rely on advice only from the description. A real carpenter must see what the problem is and make decisions. And for joists and roof elements, only structural wood C24 grade minimum must be used.
Answered
9 January 2020
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Anonymous user
If it were me I would get some new timbers ( CLS would do the trick ) I would then nail these to the rafters so that they are lower than the original ones. Making sure they are all level to each other. You are basically making a frame to take the boards. You could even do a suspended ceiling dependant on your ceiling height. Ask a pro for this to be done properly it's not really a DIY
Answered
8 January 2020
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Anonymous user
I think someone will need to see it first hand. Everything is fixable with a bit of planning and lots of experience.
Answered
8 January 2020
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Anonymous user
It's hard to tell without seeing it as it depends on the extent of the wood rot. Personally I would replace the whole thing with CLS 6x2 and every 4th joist I would double up to make sure it is rigid. And then put at least 2 to 3 rows of noggins in perpendicular to these joists to stiffen up the framework and reduce twisting in the timber. If you are worried about collapsing then replace one rafter at a time. Just make sure when installing that any bows in the timber are upwards like an unhappy face so over time and weight it will counteract. Hope some of this helps
Answered
8 January 2020
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