4” pipe lagging query?? | Commercial and Industrial Plumbing Forum | Plumbers Forums

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Discuss 4” pipe lagging query?? in the Commercial and Industrial Plumbing Forum area at Plumbers Forums

macka09

Plumbers Arms member
Plumber
Gas Engineer
Messages
1,238
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
 
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.

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

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