MegaSack DRAW - This year's winner is user - rgwb
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I retained/rebuilt some internal brick walls in the barn and at the same time added some green oak members. The oak has now shrunk a fair bit and in places I have some big gaps between the in-fill brick (non-structural walls) and the oak - i.e. 5' long, 4mm gaps.
I [i]could[/i] rake out the old mortar and repoint (what would now be a 15mm mortar gap) if I could be bothered to track down some ready mix lime mortar and some matched sand mix...
What would be easier would be to be able to inject fill a suitable medium in the 4mm gap between the mortar and the oak.
Any recommendations? Ideally it would be a buff colour to be at least similar to the lime mortar. Would a mastic be a good idea? (oak been in place for two years - might be an idea to use something flexible to accommodate any further shrinkage or expansion?)
Any off-the-shelf products? Cost not really a problem as the amount I need to do is not massive (12' x 4mm in total maybe)
Fill with foam and mastic the surface gap.
I wish there was a such thing as oak coloured foam. 🙂
Ah, load-bearing foam. The builder's best friend 🙂
So just squirt some polyeurethane in to the back of the gap and rake it back a bit when it's gone off, then mastic on the face of the foam and finished.
A buff coloured one would do it I guess.
Knock in some slithers of slate or plastic packets, then colour mastic on the face to tidy it up. Might be a little less messy than Pu foam
Erm...squeak reducing foam. 😉
Generally, if there's a big gap that needs filling, foam helps as backing for me. I thought they did mastic in all kinds of building coloured shades these days no? Might be an idea to bang in a few wedges underneath the member first though, no? (Not sure if gap goes all the way around and underneath too?
Regarding the foam, I would recommend doing it with gun foam rather than yer common or garden can.
The bloke who owned my house before me when faced with a similar issue used newspaper rolled up into 1cm tubes and shoved in the gap and then put a skim of Polyfilla across the top of the paper.
He was a classy DIYer.
Super Glue?
Super Glue?
we're gap filling here, not wound closing.