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DEMOLITION PLAN )EMOLITION NOTES: PRIOR TO DEMOLITION, MEASURE AND RECORD AIR & WATER QUANTITIES IN UTILITIES REQUIRED TO MAINTAIN OPERATION WITH -IN AND BEYOND EACH DEMOLITION PHASE UNTIL AFFECTED AREAS ARE DEMOLISHED. MAINTAIN THESE QUANTITES THROUGHOUT EACH DEMOLITION PHASE. MAINTAIN EXISTING AIR HANDLING UNIT AHU-2 IN OPERATION UNTIL ITS DEMOLITION PHASE IS COMPLETE. BLANK -OFF AND SEAL RETURN AIR INTAKES SERVING EACH DEMOLISHED AREA IN ORDER TO PREVENT GENERATED CONSTRUCTION DEBRIS FROM BEING RECIRCULATED TO OCCUPIEI SPACES DURING DEMOLITION / CONSTRUCTION PHASE. BLANK -OFF AND SEAL ANY SA, RA AND/OR EA DUCTS BEING DEMOLISHED AND REMAINING WITHIN THE CONSTRUCTION AREA. MAINTAIN NEGATIVE RELATIVE AIR PRESSURE IN DEMOLITION PHASE AREA. MINIMUM, HEPA- -FILTERED EXHAUST AIR QUANTITY SHALL BE 0.5 TO 0.75 CFM/SQ. FT. UTILIZE MULTIPLE NEGATIVE AIR UNITS, AS NECESSARY, TO MAINTAIN NEGATIVE PRESSURE. PROVIDE REQUIRED MAKE-UP AIR FROM A SEPARATE SOURCE. FANS IDENTIFIED TO BE DEMOLISHED, IN DEMOLITION AREA, AND/OR EXISTING ROOF EXHAUST FANS AND THEIR ROOF OPENINGS MAY E UTILIZED FOR AIR DISCHARGE UNTIL DEMOLITION PHASE IS COMPLETE. DO NOT UTILIZE EXISTING EXHAUST RISERS THAT SERVE OTHER SPACES OR OTHER LEVELS IN BUILDING. NEW ROOF OR WALL OPENINGS BEING CREATED FOR CONSTRUCTION MAY BE UTILIZED FOR AIR DISCHARGE. VERIFY NEGATIVE RELATIVE AIR PRESSURE IN THE CONSTRUCTION SPACE BY MAINTAINING A WRITTEN LOG, TAKEN AT REGULAR INTERVALS, POSTED FOR REVIEW, AT SITE OF CONSTRUCTION DEMOLISH ALL DUCTWORK, PIPING AND ANCILLARY DEVICES WITHIN AREA OF DEMOLITION UNLESS OTHERWISE NOTED. ALL BRANCH DUCTS BEING DEMOLISHED FROM MAIN TRUNK DUCTS SHALL HAVE BRANCH CONNECTION OPENINGS PATCHED, SEALED AND INSULATED TO MATCH EXISTING DUCTWORK. DEMOLISH ALL ABANDONED DUCTWORK, DAMPER; PIPING AND ANCILLARY DEVICES IN DEMOLITION AREA UNLESS OTHERWISE NOTED. PATCH AFFECTED WALLS TO MATCH EXISTING OR NEW CONSTRUCTION, AS PROJECT DICTATES. CAP BRANCH PIPING AT RISER ISOLATION VALVES. IF VALVES ARE NOT INSTALLED, PROVIDE GATE VALVE AND BLIND FLANGE. NEW WORK PLAN RELOCATED AIR DEVICES TO (102�AND ANTE ROOM (101)- CTI N INC. BAULIN TUBE )NT AT ABOVE DOOR LEVEL. - PROVIDE AIRFLOW TUBE MODEL BOVE DOOR LEVEL. f0 BE RELOCATED. REFER i FOR DETAILS. polvROUS Project No. 10003.00 M201 SCALE 4" =1'-0" $DATE$ $TIME$ $FILEA$ SCALE %" =1'-ON © 2009 BH/PK Architects, Inc.