Hi All, 

 

Hopefully a quick one please, wasn't sure what section to put this into.  I drilled a brick to run three 22mm pipes from my internal garage into the upstairs bedroom floor void though the brick became loose as had no support from where I had previously knocked through the bedroom above.  The internal garage is new, unheated (except for housing the boiler) and will be plastered, so keen ensure good levels of air tightness are kept and the bedroom above well insulated.

 

I still need to run the pipework through though looking for suggestions how best I can repair the hole please either before or after running the pipework.  What materials should I use, do I need to consider vapour control at all during the making good? Hopefully it's simple but I'm scratching my head!

 

Many Thanks

 

 

 

Sleeve the pipes in 28mm tube where they pass through the wall, fill in around them with mortar, then seal the actual pipes to the wall with proprietary seals before plastering.

i did as Mike says, but i was moving 15mm. Sleeved in 22mm conduit, propped into place and then mortar back in. Also done the same job but used airtight expanding foam (FM330) as well as it was too awkward to get the mortar in without it being a mess and that has worked totally fine as well.