Loose-laid membrane | Article about loose-laid membrane by The Free Dictionary
A ballasted roofing membrane that is only attached to the substrate along the edges and at penetrations through the roof.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive
The material was removed from roofs with loose-laid membrane
covered by ballast or mechanically fastened systems.