4” pipe lagging query??

macka09 · Sep 17, 2024

Hi folks
I don’t normally do much pipe lagging but I need to lag some rain water pipe work.

Thing is I’m struggling with lagging the branches properly. Any advice that could be useful?? I’m using foil faced rockwool.

Cheers

ShaunCorbs · Sep 17, 2024

What are you struggling with the dia or the branch bend ?

macka09 · Sep 17, 2024

ShaunCorbs said:
What are you struggling with the dia or the branch bend ?

The branch bend. Cutting the lagging like you would for the usual size pipe just doesn’t work.

ShaunCorbs · Sep 17, 2024

macka09 said:
The branch bend. Cutting the lagging like you would for the usual size pipe just doesn’t work.

It won’t as it’s swept so you will have to nibble / curf cut the inside radius

macka09 · Sep 18, 2024

ShaunCorbs said:
It won’t as it’s swept so you will have to nibble / curf cut the inside radius

I thought as much. It’s actually a double branch. Like a big tee with a prodding eye in the end. Bloody nightmare.

Last Plumber · Sep 23, 2024

This may be a silly question but why are you lagging a rainwater pipe?

They are normally empty and when it is raining, it isn't freezing.

Apologies if I have missed the point.

ShaunCorbs · Sep 23, 2024

Last Plumber said:
This may be a silly question but why are you lagging a rainwater pipe?

They are normally empty and when it is raining, it isn't freezing.

Apologies if I have missed the point.

I’m guessing sound is the issue

Last Plumber · Sep 24, 2024

ShaunCorbs said:
I’m guessing sound is the issue

Good point.
Good thinking Batman!

4” pipe lagging query??

macka09

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ShaunCorbs

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macka09

Plumbers Arms member

ShaunCorbs

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macka09

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Last Plumber

ShaunCorbs

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Last Plumber

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