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ENGINEER999
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Join Date: Dec 2010
Posts: 34

Glass Wool Insulation on Chilled and Hot Water Pipes

01/10/2011 10:56 AM

The specs call for 1 inch thick glass wool insulation with aluminum foil vapor barrier for chilled and hot water networks inside the building and 2 inches insulation with aluminum cladding for external above ground piping. For better adherence to pipes, would there be any issues if the insulation is applied with adhesive instead of just using aluminum tape to close the openings?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#1

Re: Glass Wool Insulation on Chilled and Hot Water Pipes

01/10/2011 1:18 PM

Getting it off again might be more problematic.

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Tornado
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Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
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#2

Re: Glass Wool Insulation on Chilled and Hot Water Pipes

01/10/2011 4:30 PM

It might not matter for fiberglass, but rigid foam expands/contracts differently from pipe, and thus should not be adhered to the pipe.

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philroth2252
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Join Date: Oct 2010
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#3

Re: Glass Wool Insulation on Chilled and Hot Water Pipes

01/10/2011 8:46 PM

Install as per the manufacturers specification. You could be taking on the liability of the maker if you do it your way. You could ask for their approval for the installation.
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pritam
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Engineering Fields - Mechanical Engineering - New Member India - Member - New Member

Join Date: Aug 2008
Location: City of destiny, INDIA
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#4

Re: Glass Wool Insulation on Chilled and Hot Water Pipes

01/14/2011 1:35 AM

No. Use of adhesive is not recommended. Moreover, glasswool is loose, it will not sick totally.

Now a days for this application, formed PUF insulation is more preferred due to ease in installation and better performance.
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