owd-23000102-c001.pdf

FEDERAL AVIATION ADMINISTRATION

DEPARTMENT OF TRANSPORTATION

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3.3" ISOCYANURATE INSULATION

ROOF

HATCH

ROOF HATCH TO

COUNTERPOISE

ROOF TOP

HVAC UNIT & CURB

(SEE NOTE 3)

RETURN

SUPPLY

3" GAP BETWEEN

HVAC UNIT AND

WALKWAY PAD

(TYP)

ALL WALKWAY

PADS ARE 3'-6"

(TYP)

NOTES:

COATING APPLICATION.

HAVE ELASTOMERIC COATING MANUFACTURER'S REPRESENTATIVE COME TO THE SITE TO INSPECT ROOF 10.

APPLICATION OF ELASTOMERIC COATING.

THE EPDM HAS BECOME UNADHERED AND WILL NEED TO REPAIRED OR REPLACED PRIOR TO THE

BELOW THE STEEL BALCONY, THERE ARE AREAS A ROOF DECK THAT IS COVERED IN AN EPDM. SOME OF 9.

COVERS THAT WERE REMOVED.

APPROVED EQUAL OF A LIQUID MEMBRANE). INSTALL NEW 14 GA ALUMINUM CLOSURES TO REPLACE THE

REMOVE THE STEEL PORTION OF THE COLUMN CLOSURES. APPLY A COAT OF SIKALASTIC 641 (OR AN 8.

PROVIDE COORDINATION DRAWINGS PRIOR TO WORK START

FLASHING MUST BE COVERED IN ELASTOMERIC TOPCOAT TO OBTAIN MANUFACTURER'S ROOF WARRANTY. 7.

REPLACE THE 2" INSULATION WITHIN THE VIBRATION ISOLATION STAND WITH LIKE INSULATION6.

STAND AS WELL AS THE HATCH ACCORDING TO MANUFACTURER'S INSTALLATION REQUIREMENTS

ELASTOMERIC COATINGS SHALL BE APPLIED UP THE VERTICAL FLASHING OF THE HVAC CURB/SEISMIC 5.

TO CONFIRM COMPLETE COVERAGE OF THE ROOF

AFTER EACH APPLICATION OF TOP COAT OF ELASTOMERIC ROOFING SYSTEM SHALL BE INSPECTED BY COR 4.

VAPOR BARRIER IS SEALED AT ALL EDGES3.

CONTRACTOR TO CLEAN EXISTING ROOF DRAINS, AND REMOVE ANY DEBRIS FROM THE AREA.2.

CONTRACTOR TO SUBMIT ALL MATERIALS FOR APPROVAL FOR THE NEW ROOFING SYSTEM1.

LOCATION. (EXISTING)

COATED WALKWAY IN SELECT

60 MIL PVC MEMBRANE WITH SAND

MANUFACTURER'S SPECIFICATIONS

COATING ACCORDING TO

APPLY TOP LAYER OF ELASTOMERIC

FASTENED TO ROOF DECK (EXISTING)

1/2" DENSDECK MECHANICALLY

GROUND LEVEL

C-2 LEVEL CHIEF'S ROOM

C-3 LEVEL JUNCTION ROOM

CONTROL CAB LEVEL

ROOF DECK

PARAPET

1'-7 1/2"

2'-9 1/2"

2'-7"

LIGHTNING PROTECTION

CAB FALSE CEILING

OBSTRUCTION LIGHT (TYP)

LIGHTNING ROD (TYP)

C001

NORTH ELEVATION

NOT TO SCALE

HVAC UNIT (TYP)

ROOF EDGE

COATING RAILINGS

ROOFING SYSTEM, INCLUDING

UPPER ROOF OVER EXISTING

APPLY ELASTOMERIC COATING TO

THE FACADE

MULLIONS, AND CONTINUE DOWN

PARAPET ROOF WALL, RAILINGS,

APPLY COATING OVER UPPER

(SEE NOTE 8)

COAT COLUMNS IN RESIN COAT.

REMOVE COLUMN CAPS AND

(SEE NOTE 9)

CORNERS OF THE ROOF DECK

TOP EDGES OF THE EXPOSED

APPLY ELASTOMERIC COATING TO

HVAC UNIT AND HATCH FLASHING

UP THE VERTICAL SIDES OF THE

APPLY ELASTOMERIC COATING 8"

C001

ROOF PARTIAL ELEVATION

NOT TO SCALE

C001

ROOFING CROSS SECTION

NOT TO SCALE

METAL DECKING (EXISTING)

S-PATTERN CORRUGATED

PAD (TYP)

AND EXISTING WALKWAY

3" GAP BETWEEN PARAPET

(TYP. OF 4 PLACES)

TO ELASTOMERIC COATING

NEED TO REPAIRED, PRIOR

DAMAGED EPDM LAYER WILL

LOWER EXPOSED ROOF WITH

WALKWAY MATS.

EXISTING DAMAGED

HATCHING INDICATES

A TRAFFIC SURFACE.

SURFACE TO CREATE

ENTIRE ROOF

WILL BE APPLIED TO

MATERIAL COATING

APPLICATION OF GRIT

(OR APPROVED EQUAL).

FLEECE, AND 641.

SIKALASTIC ROOFPRO PRIMER,

SYSTEM. ONCE DRY, APPLY

AND DEBRIS FROM EXISTING ROOF

PRESSURE WASH LOOSE SAND

ALONG THE ROOF LINE

THE NEAREST ROOF DRAIN

CONDENSATE DRAIN PIPED TO

C001

ROOF PLAN

NOT TO SCALE

BILCO ROOF HATCH

CAULK JOINTS

WINDOWS. APPLY SIKAFLEX 1A TO

TO EXPOSE BARE METAL AROUND

REMOVE EXISTING SURFACE RUST

(SEE NOTE 2)

ROOF DRAIN (TYP)

DUCTLESS MINI-SPLIT

FOR SECOND FLOOR

EXISTING CONDENSER UNIT

DUCTLESS MINI-SPLIT

UNIT FOR SECOND FLOOR

EXISTING EVAPORATOR

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08/22/2023

MGR: ENGINEERING CENTER

NORWOOD

OWD-23000102-C001

SP

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ATCT

HVAC REPLACEMENT AND ROOF REHAB PROJECT

ROOF WORK

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OPS INFRASTRUCTURE

ENGINEERING SERVICES

ATO - TECHNICAL OPERATIONS EASTERN SERVICE AREA

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NORWOOD MEMORIAL AIRPORT

THIS DRAWING PRODUCED ON NEW ENGLAND REGION CAD SYSTEM

PROJECT ENGINEER

23000102

08/22/2023 CONSTRUCTION 23000102

MA

owd-23000102-c001