Fixing steel beam in stone wall

3 years ago

I have a stone cottage which was remodelled in the 70s including 'thinning' the external stone wall to put in a shallow bay window, meaning the original ceiling beams no longer rest on the stone wall. Additional short sections of beam were fastened to the side of the original beams to extend them to the thinned wall. These are not fastened to the wall in anyway, just balanced on a stone or brick on top of it. It has lasted 50 years without issue, but just to be on the safe side I have put in a steel beam which sits under the original beams and goes into the stone wall at either side (where it is still the original thickness).

What is the best way to secure the steel to the stone wall?

Is it ok to cement it in or would that potentially cause any problems? I'm having cement render roughcast removed from the house and replaced with a lime render, so seems a bit mad to be adding cement to the wall, but it is only two small areas and not sure lime mortar would be strong enough around the beam ends or if it would corrode the steel.

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Fixing steel beam in stone wall

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