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Posted

Hello all

 

On a garden room project I've got some services coming through a wall that's being clad with fibre cement weatherboard.   A lavatory waste, vmc, some 40mm waste, a condensate pipe (22mm) and a 15mm inlet.  

 

Annoyingly most will go through the same board. 

 

What's the best way to make this neat, please?  Do you cut larger and then fill with something?  Or are there caps or cowls that can fit around the service entrance and cover the excess of the hole up?

 

Thanks in advance.

Justin

 

Posted

Is this external or internal?

 

Most flooring suppliers offer a range of aesthetic collars / cover rings in many different colours and sizes. Maybe try looking there? Most are MDF I think, so at the least you'd have to spray them with a lacquer to make them weatherproof. 

 

How nice do they need to be?

Posted
2 hours ago, Nickfromwales said:

Is this external or internal?

 

Most flooring suppliers offer a range of aesthetic collars / cover rings in many different colours and sizes. Maybe try looking there? Most are MDF I think, so at the least you'd have to spray them with a lacquer to make them weatherproof. 

 

How nice do they need to be?

Exterior walls.  

 

They need to be ok but not deluxe. Another issue is that any significant gap can lead to insect and potentially rodents finding nesting space.  

 

I'm thinking black rubber pipe collars like the pipe snugs might work.  Glued in with some black silicone.

Posted
1 hour ago, FuerteStu said:

I'd be tempted to core through after they're fitted.. Leaves less room for error

 

The fibre cement would not survive that much pressure against the fixings.  It's too brittle.  

 

Also prosaically the services were in 8 months ago so that horse has bolted sadly!

Posted
45 minutes ago, jpadie said:

the services were in 8 months ago

A picture ?

 

To a 110mm pipe you can cut cement board exactly and either slide it over or half it and push on from either side.

 

The others could perhaps be clustered through another pipe as a duct, and the gaps infilled / sealed.

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