GB Wrote in message:
On 01/07/2018 00:23, John Rumm wrote:
On 30/06/2018 15:28, Tim Streater wrote:
In article , John
Rumm wrote:
On 30/06/2018 15:06, Brian Gaff wrote:
The only way I've seen this done is by replacing the lower glazing
panel
with something else, looks like some kind of hard plastic on the one I
remember. Then a cat flap was fitted.
In this particular case that is not so easy as the photo shows a door
divided into three full height vertical glass panels. It would be
tricky to fit in a new cross member and not have it look a bit odd.
In our case we put the cat-flap through the wall next to the uPVC door.
The flap itself is on the inside, the other side of it there's a tunnel
to the outside. Cats seem to cope well with that.
+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. 
Did that have a cavity then?
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Jim K
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