Edge problem replacing floorboards

[mikethetile]

nmp is cement board like hardie

 

[2hapennies]

OK all, thanks very much for your help and patience.
I've now looked up NMP and SPF, and agree these look like my best bet.
I've found a thread on "whats the best SPF" so I'll have a look at that. NMP versus Hardie? Any views? or are they much the same?
Are there any incompatibilities between different SPFs and overboards? Thanks again, 2hP (Martyn).

 

[Rich]

I use NMP and think its great, but I think you should prob go with hardie for this one. NMP recommend using the NMP glue where as Hardie would say to use a single part flexi adhesive which IMO would do a better job at filling these dishes in the floor boards.

 

[2hapennies]

Thanks Dylante, having looked at the NMP instructions I'd wondered about their use of a 'small bead' of their glue approach, which wont fill the dips, so hardie & SPF it is! Thanks again all.

 

[trevortine]

Let us know how you got on buddy! Remember, every days a school day, learn something new and you'll know the next time, just quick point as well, if you ever have to lay a lot of boards then always stagger them, ie in a brick bond fashion, this prevents having four corners meeting and a potential weak point! Good luck!

 

[diamondtiling]

Thanks Diamond. Yes thats right. The floor joist is about 20cm away from the wall which stands on the floorboards. The boards run under the wall to the next joist on the other side of it. So I cant cut the boards right upto the wall without undermining the wall structure and floor on the other side. Only possibility I can see is to lift boards at intervals on both sides of the wall, and fit noggins to support the wall, but seems way over the top ( or rather under the bottom!)

Fitting extra noggins is not over the top, take up as much of the boards as you can and fit the noggins for strength, these noggins will then replicate the removed floor so the walls will not lose any integrity. You can then fit 18mm ply and hardi on top.
Reinforce under the wall as you go with your noggins, doing it a little at a time will relieve stress on the walls, do one joist and then another. The wall will not be load bearing if its sitting on timber.