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CI-v4 MRc2:Interiors life-cycle impact reduction

Option 3 - strategy 2

The credit language reads: Design at least 50% of interior nonstructural walls, ceilings, and floors to be movable or demountable. Does anyone know how this is defined and the calculation done? Is the sum surface area of interior nonstructural walls + surface area of nonstructural ceilings (ACT, gyp bd etc.) + surface area of nonstructural (access???) floors and - is it a straight 50%, or does it have to be 50% of EACH system (nonstructural walls, nonstructural ceilings, AND nonstructural floors)? all insights will be appreciated; thank you

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Ashwini Arun
Senior Sustainability Manager
WSP
LEEDuser Expert
53 thumbs up

Tue, 08/29/2017 - 20:56

Gail, Refer to Page 245 of the Reference Guide which briefly defines demountable partitions. Access floors would fall under the category "Accessible Floor and Ceiling". For the calculations take a look at Equation 4 under "Further Explanation" on Page 244 of the Reference Guide. Based on the equation, it seems like you would have to sum up the different surface areas in order to calculate the total percentage of movable/demountable surfaces. And it would be 50% of the total area of the ceilings,walls and floors and not 50% for each element.

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