I'm currently running some exterior cabling in 50mm external diameter flexible duct between two buildings. At one end, the cable will be running under wooden decking.
Upon lifting the decking to dig the trench, I was surprised to find that the decking is suspended a few inches above the soil, and that on the building edge, a joist is bolted onto the brick wall of the building (given the state of most of the construction in the house, I'd assumed that it was just laid flat onto the soil and left to rot - this discovery is simultaneously a nice and an annoying surprise)
The difficulty I have is that I want to ducting to emerge through the decking right up against the wall, however the joist as it stands will currently prevent that.
The joists are 50mm wide and 150mm deep, meaning that the duct is the full width of a joist - a notch doesn't help much.
Is there a neat way of resolving this without having to have the duct emerge 50mm from the wall? I'm assuming not, but maybe someone knows of some magic?
Possibly some kind of special fixing to the wall mounted joist either side of a cut through it coupled with an additional joist? I can't really remove the wall mounted joist to add extra bolt points, as this would probably involve dismantling most / all of deck, and the project has already expanded a lot (for other reasons) since it started.
I suppose I could just pass the armoured cable through the decking without the duct, but I guess I'd still need to somehow notch the joist on the wall side to avoid it coming out at a distance from the wall, and being vulnerable to being snagged or tripped...
Upon lifting the decking to dig the trench, I was surprised to find that the decking is suspended a few inches above the soil, and that on the building edge, a joist is bolted onto the brick wall of the building (given the state of most of the construction in the house, I'd assumed that it was just laid flat onto the soil and left to rot - this discovery is simultaneously a nice and an annoying surprise)
The difficulty I have is that I want to ducting to emerge through the decking right up against the wall, however the joist as it stands will currently prevent that.
The joists are 50mm wide and 150mm deep, meaning that the duct is the full width of a joist - a notch doesn't help much.
Is there a neat way of resolving this without having to have the duct emerge 50mm from the wall? I'm assuming not, but maybe someone knows of some magic?
Possibly some kind of special fixing to the wall mounted joist either side of a cut through it coupled with an additional joist? I can't really remove the wall mounted joist to add extra bolt points, as this would probably involve dismantling most / all of deck, and the project has already expanded a lot (for other reasons) since it started.
I suppose I could just pass the armoured cable through the decking without the duct, but I guess I'd still need to somehow notch the joist on the wall side to avoid it coming out at a distance from the wall, and being vulnerable to being snagged or tripped...