Hi guys I need to install some conduit through the wall for some cameras. Is there any tricks when drilling through the exterior wAll in a timber frame?
I’m concerned once I hit the insulation behind the osb board It’s going to end up wrapping around the drill and messing everything up in there. 

 

 

Drill a 25mm pilot in the interior panel immediately prior to the wool insulation. Then get a piece of 20mm conduit 600mm long and cut an angled cut on one end.

Rotate the conduit into the wool until it hits the inner face of the outer skin. 

Use a 1000mm sds 10mm bit fed through the conduit to make a pilot hole to outside ( it'll go through timber and brick ) with the conduit held still thus preventing the rotating drill and the wool from meeting. A second pair of hands to hold the conduit will help.

Drill back in from outside with a 22mm drill, and then offer the conduit back in so it meets with the outside face, seal the conduit to the brick, and then pop your cable through.

Remember to drill downhill from inside, and uphill from inside, eg to prevent any water ingress to the house interior.

Seal both the inside and outside of the conduit at the interior to prevent drafts.

Thanks for that Nick exactly what I was looking for. Really appreciate it.

 

Edited September 19, 20224 yr by Alwayslearning22

Is it ok to use this method and drill from the outside? Im afraid of the brick face popping off on me.