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lightweight vs normalweight cmu

lightweight vs normalweight cmu

lightweight vs normalweight cmu

(OP)
I have a project just going to construction and the architect has specified that exposed burnished block be lightweight, instead of normal weight cmu as designed.  I have checked the wall designs and everything still appears okay.  I have reviewed the codes, but I still feel that there is something else I should be checking.  Can anyone offer any further advice on changing the normal weight cmu to lightweight cmu?

RE: lightweight vs normalweight cmu

Lightweight units have different fire resistant ratings and the lightweight unit may be part of a rated assembly... Also less dead load to the foundations...

Dik

RE: lightweight vs normalweight cmu

Light-weight units will also affect the strength of any fasteners for signs, studs, decorations or any other part of the exterior that needs to be fastened to the cmu.

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