- Joined
- 15 Jul 2018
- Messages
- 200
- Reaction score
- 8
- Country
ToastyToes, good evening again.
OK, IMO the gable tie rods unless they are going right the way across the property to be tied externally at the other side are not installed correctly?
Why? because, the rational is that the unsupported very high thin solid wall is getting no benefit of support from the joists. the threaded rod has been pushed through, the object is to have these rods bore themselves into and through the joist so that the [best called] monococque system of joists and flooring attached, plus noggins or strutting will withstand the gable bulging away from the house, to simply bore holes and push in some threaded bar is [bluntly] useless, the wall is not being restrained in any way and will continue to bulge out. But if a threaded bar had been bored into and through several joists then the combined stability of several joists + flooring + noggins + strutting can and at times does halt the outward movement of the wall.
A more [shall I call it "modern"] system can be found if you have a look @ Helifix web site, there system is small high tensile bars which are bored into several joists, worth a look??
Difficult to see but?? because it appears the concrete is adhering to the joist, there appears to be a gap between the concrete and the brickwork?? am I correct?? if so then wall could? I stress Could still be moving outwards. This outward movement may have ceased? but the only way to check is to instruct a vertical level [bulge] monitoring exercise [not cheap]
Did your Building Surveyor mention any of the above??
Ken
Hi Ken,
Thank you for your detailed response. The last 2 joists the rod goes through have washers and nuts to 'hold' the rod to the joists, essentially tying it in. I was going to add another one or two rods in the same fashion along the wall. Regardless if it is still moving or not, £200 for the metal will give me some reassurance.
Regarding the Helifix ties, are you referring to these? https://www.helifix.co.uk/products/remedial-products/bowtie/
I will look into the vertical level monitoring you spoke about.
A loft conversion was added to the property some 20 years ago, around the same time the wall tie rod was installed. I'm confident the weight of the conversion caused the bulge.
Thanks