best method to drill through external clay cladding

[MH731Z]

Hi

whats the best way to drill a hole for air condition pipes ~50mm wide through clay cladding and what would needed to cover the hole to prevent rain water coming in ?

Image of wall below, Thanks In advance!
M

 

[JohnD]

clay cladding? Is that tiles? What is the house behind the cladding made of?

Is there a waterproof membrane and insulation behind?

 

[Alastairreid]

You will need a weathering slate.

 

[MH731Z]

clay cladding? Is that tiles? What is the house behind the cladding made of?

Is there a waterproof membrane and insulation behind?

Hi, sorry not sure if clay cladding was the correct term to use, it feels the same as roof tiles but someone they attached them to the wall, the wall behind is brick I believe

 

[MH731Z]

You will need a weathering slate.

thanks! I didn't know what the term was but I think your suggestion is spot on