lt membrane with a 45+ year truck record for critical waterproofing and roofing applications world-wide. 4:". • 11, HYDROTECH •SSOCIATCS/TN( OCSIGN ALLIANCE IMAGE: COURTESY EFTA00281485 18 IiRCHITECTURAL RECORD OCTOBER 2010 THE LIVING BUILDING CHALLENGE AIA/Architectural Record Continuing Education