On Sun, 01 Jul 2018 15:46:41 +0100, Tim Streater wrote:


+1 did the same here... just fitted the external bezel on the outer
wall and made up a WBP ply tunnel to link the flap and exterior bezel.

No need for a ply tunnel. You just needed one of those proper drills,
like they used on the Covent Garden safe deposit raid. A big Hilti IIRC.


Yes there is. You can use one of those 6" diameter drill bits to get
through the outer brick and the inner breeze block, yes. But then you
have to line it otherwise the cat will be bringing brick dust and ****
indoors, or dropping a live mouse onto the wall insulation you've cut
through. Mousey will then vanish and be perfectly happy.

I've seen people repurpose one of those recesses for boot scrapers. Half
the job is done already!

There was an interesting approach near here. The house had a brick garage
built on the side. Presumably there were wheelie bins or some other
method for the cat to get onto the flat roof of the garage. From there
was a small wooden ramp leading to a cat flap fitted into a first floor
window.



--
My posts are my copyright and if @diy_forums or Home Owners' Hub
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor