Specs_and_Drawings_combined.pdf

FASTENER - 8" O.C. MAX.

SELF ADHERED UNDERLAYMENT

VALLEY FLASHING WITH

INTEGRATED LOCK

(3) CONTINUOUS 1/4" DIAMETER

BEADS OF BUTYL SEALANT

RUN A 1/4" DIAMETER BEAD OF BUTYL UP 6" FROM

LOW END OF PANEL TO MARRY WITH CONTINUOUS

FACTORY APPLIED SEALANT INSIDE SEAM

MINIMUM 6" WIDE UNDERLAYMENT

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METAL ROOF VALLEY SECTION

1" = 1'-0"

RAKE DETAIL

3" = 1'-0"

ROOF: 1 1/2" STANDING SEAM

ON (E) 7/8" HAT CHNL @ 2'-6" OC

ON (E) 30# BLDG PAPER

ON (E) 1 1/2" MTL DECK

A I R

L O

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RAKE

FLASHING

CONTINUOUS

SS INSECT

SCREEN

CONTINUOUS

CLIP

3/4" NEOPRENE

SPACER AT 6" OC

R 38 BATT INSULATION

W/ STICK PIN VINYL

RETAINER/VAPOR

BARRIER

SEE 6/A-501

4'-0"

EQ EQ EQ

ROOF DRAIN, CONNECT TO EXISTING

DOWNSPOUT/ RAIN LEADER

OVERFLOW DRAIN -

2" VERTICAL

EXTENSION

OVERFLOW DRAIN,

CONNECT TO

OVERFLOW OUTLET

ROOF DRAIN AND OVERFLOW

1" = 1'-0"

EXPANSION JOINT AT ROOF PARAPET

3" = 1'-0"

11 11A

STANDING SEAM METAL ROOF

20 GA FLASHING

SEALANT ALL EDGES

METAL COMPOSITE PANEL

SYSTEM

ON 3/4" PERFORATED Z

FURRING

ON 1/2" SHEATHING (E)

ON MTL STUD (E)

R 38 BATT INSULATION

W/ STICK PIN VINYL

RETAINER/VAPOR

BARRIER

20 GA PREFINISHED CAP

W/ CLIPS AT 2'-0" OC

CONTINUOUS SS

INSECT SCREEN

CONTINUOUS CLIP

3/4" NEOPRENE

SPACER AT 6" OC

CONTINUOUS INSECT MATT

WEEP

3/4"

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REPLACE EPDM

ROOFING

SHEET AIR/MOISTURE BARRIER

SELF-ADHERED

FLASHING

SELF-ADHERED

FLASHING

EXTEND MEMBRANE

OVER TOP OF

PARAPET WALL

ROOF EXPANSION JOINT

3" = 1'-0"

11 11A

ROOF: 1 1/2" STANDING SEAM

O/ 7/8" HAT CHNL @ 2'-6" OC (E)

O/ 30# BLDG PAPER (E)

O/ 1 1/2" MTL DECK (E)

20 GA FLASHING

ROOF: 1 1/2" STANDING SEAM

O/ 7/8" HAT CHNL @ SEAMS (E)

2" 2" 2"

SEALANT ALL EDGES

1/2"

ADDITION

BLDG

R 38 BATT INSULATION

W/ STICK PIN VINYL

RETAINER/VAPOR

BARRIER

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TURN UP LEG AND SEAL WITH

URETHANE SEALANT

ANCHOR FASTENER

ZEE CLOSURE SET IN DOUBLE BEADED

BUTYL TAPE, FILL HEM OF FLASHING

AND SPACE BETWEEN ZEE AND PANEL

SEAM WITH URETHANE SEALANT

BUTYL TAPE

RIDGE/HIP CAP

UNDERLAYMENT

(3) CONTINUOUS 1/4" DIAMETER

BEADS OF BUTYL SEALANT

RUN A 1/4" DIAMETER BEAD OF BUTYL

UP 6" FROM HIGH END OF PANEL TO

MARRY WITH CONTINUOUS FACTORY

APPLIED SEALANT INSIDE SEAM

METAL ROOF HIP/RIDGE

1 = 1'-0"

EXISTING ROOF

STRUCTURE

ROOF MEMBRANE SYSTEM

EPDM FLASHING AND

SEALANTS

FLEXIBLE FLASHING BOOT

STAINLESS STEEL

ADJUSTABLE

BOOT CLAMP (CUT OFF

EXCESS)

CONTINUOUS SEALANT

NOTE:

COORDINATE LOCATION, SIZE

AND

QUANTITY WITH MECHANICAL

AND

ELECTRICAL CONTRACTOR.

1/2" TO 6"

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U M

EXISTING ROOF

STRUCTURE

TYPICAL PIPE PENETRATION

1 1/2" = 1'-0"

3"

3 LB LEAD FLASHING FROM

12" OUTSIDE OF ROOF SLEEVE,

UNDER EPDM, TO 2" DOWN

INSIDE FACE OF SLEEVE

STAINLESS STEEL WEATHER HOOD,

CLAMP OR WELD TO STACK TO

CREATE A WEATHER TIGHT SEAL

MECHANICAL STACK

EXISTING ROOF CONSTRUCTION

12 GA. STAINLESS STL. SLEEVE

FROM BOTTOM OF ROOF CONST.

TO 10" ABOVE ROOF

FASTEN SLEEVE TO METAL DECK

AT 90° OR LESS AROUND SLEEVE

GROUT AROUND ROOF SLEEVE,

FULL THICKNESS OF ROOF

4"

MIN

STACK PENETRATION

1" = 1'-0"

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A

B O

V E

O

F

ROOF TOP MECHANICAL

EQUIPMENT

(SEE MECHANICAL DRAWINGS)

METAL FLASHING WITH

CONT. METAL CLEAT

MEMBRANE FLASHING

(RUN OVER TOP OF CURB)

PRE-MANUFACTURED

ROOF CURB

MEMBRANE ROOFING

SYSTEM

DUCT PENETRATING

ROOF STRUCTURE

SEE TYPICAL LAP SEAM

DETAIL

EQUIPMENT CURB

1 1/2" = 1'-0"

30'x36" ROOF HATCH

FASTEN TO METAL

DECK WITH SELF

DRILLING SCREWS,

SEAL HATCH TO DECK

FULLY ADHERED EPDM

FLASHING, FLASH OUT

FROM HATCH MINIMUM

OF 4'-0", SEAL LAP

JOINTS

ROOF INSULATION

ROOF MEMBRANE

METAL DECK

NOTE:

SEE ROOF AND FLOOR

PLAN FOR SIZE AND

LOCATION

M I N

ROOF HATCH

1" = 1'-0"

1 1/2" 1'-0" 1 1/2"

THRU-WALL SCUPPER

3" = 1'-0"

24 GA. GALVANIZED

METAL

12" x 8" OPENING

ROOF MEMBRANE

GRAVEL STOP

THRU-WALL SCUPPER

1" = 1'-0"

SHEET CONTENTS

DO NOT SCALE DRAWINGS

ANG NO.:

M&H NO.:

DATE:

DESIGNED BY:

DRAWN BY:

CHECKED BY:

ISSUED

SHEET NO. OF

© Copyright

This document, or any portion thereof, shall not be duplicated, disclosed, or used on any other project or extension of this project except by written agreement with Mead &

Hunt, Inc. Mead & Hunt shall not be responsible for any unauthorized use of, or alteration to these documents.

Mead & Hunt, Inc.

9600 NE Cascades Parkway, Suite 100

Portland, OR 97220 phone: 503-548-1494 meadhunt.com

J o i n t V e n t u r e

12/5/14 TYPE B3

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3142100-121077-02

December 5, 2014

TQKD102004

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ROOF DETAILS

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TQKD102004

Portland Air National Guard - Project TQKD 102004 06 March 2015 Envelope Replacement Design B135 - Type B3 Final Rev.

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 53 23

ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING

05/12

PART 1 GENERAL

1.1 REFERENCES

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEM

1.3 SUBMITTALS

1.3.1 Shop Drawings

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

1.4.2 Qualifications of Photovoltaics (PV) Rooftop Applicator

1.4.3 Fire Resistance

1.4.4 Wind Uplift Resistance

1.4.5 Preroofing Conference

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

1.5.2 Storage

1.5.3 Handling

1.6 ENVIRONMENTAL REQUIREMENTS

1.7 SEQUENCING

1.8 WARRANTY

1.8.1 Roof Membrane Manufacturer Warranty

1.8.2 Roofing System Installer Warranty

1.8.3 Continuance of Warranty

1.9 CONFORMANCE AND COMPATIBILITY

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 EPDM Sheet

2.1.2 Seam Tape

2.1.3 Lap Splice Adhesive

2.1.4 Bonding Adhesive

2.1.5 Lap Cleaner, Lap Sealant, and Edge Treatment

2.1.6 Water Cutoff Mastic/Water Block

2.1.7 Membrane Flashings and Flashing Accessories

2.1.7.1 Flashing Tape

2.1.8 Membrane Fasteners and Plates

2.1.8.1 Stress Plates for Fasteners

2.1.8.2 Auxiliary Fasteners

2.1.8.3 Powder-Driven Fasteners

2.1.8.4 Metal Disks

2.1.9 Pre-Manufactured Accessories

2.1.10 Roof Insulation Below EPDM Sheet

2.1.11 Wood Products

2.1.12 Membrane Liner

2.2 FLASHING CEMENT

SECTION 07 53 23 Page 1

PART 3 EXECUTION

3.1 EXAMINATION

3.2 APPLICATION

3.2.1 Special Precautions

3.2.2 EPDM Sheet Roofing

3.2.3 Application Method

3.2.3.1 Combined Fully Adhered and Mechanically Fastened Application

3.2.3.2 Fully Adhered Membrane Application

3.2.4 Tape Seams/Lap Splices

3.2.5 Adhesive Seams/Lap Splices

3.2.6 Perimeter Attachment

3.2.7 Securement at Base Tie-In Conditions

3.3 FLASHINGS

3.3.1 General

3.3.2 Membrane Flashing

3.3.3 Flashing at Roof Drain

3.3.4 PRE-FABRICATED CURBS

3.3.5 Set-On Accessories

3.3.6 Lightning Protection

3.4 ROOF WALKPADS

3.5 CORRECTION OF DEFICIENCIES

3.6 CLEAN UP

3.7 PROTECTION OF APPLIED ROOFING

3.7.1 Water Cutoffs

3.7.2 Temporary Flashing for Permanent Roofing

3.7.3 Temporary Walkways, Runways, and Platforms

3.8 FIELD QUALITY CONTROL

3.8.1 Construction Monitoring

3.8.2 Manufacturer's Inspection

3.8.3 Roof Drain Test

3.9 INSTRUCTIONS TO GOVERNMENT PERSONNEL

3.10 INFORMATION CARD

-- End of Section Table of Contents --

SECTION 07 53 23 Page 2

SECTION 07 53 23

ETHYLENE-PROPYLENE-DIENE-MONOMER ROOFING

05/12

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF CIVIL ENGINEERS (ASCE)

ASCE 7 (2010; Change 2010; Change 2011; Errata 2011; Change 2011) Minimum Design Loads for Buildings and Other Structures

ASTM INTERNATIONAL (ASTM)

ASTM D4637/D4637M (2013) EPDM Sheet Used in Single-Ply Roof Membrane

ASTM D6369 (1999; R 2006) Design of Standard Flashing Details for EPDM Roof Membranes

ASTM E108 (2011) Fire Tests of Roof Coverings

FM GLOBAL (FM)

FM 4470 (2010) Single-Ply, Polymer-Modified Bitumen Sheet, Built-up Roof (BUR), and Liquid Applied Roof Assemblies for Use in Class 1 and Noncombustible Roof Deck Construction

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

NATIONAL ROOFING CONTRACTORS ASSOCIATION (NRCA)

NRCA RoofMan (2013) The NRCA Roofing Manual

SINGLE PLY ROOFING INDUSTRY (SPRI)

ANSI/SPRI RD-1 (2009) Performance Standard for Retrofit Drains

UNDERWRITERS LABORATORIES (UL)

UL 790 (2004; Reprint Jul 2013) Standard Test Methods for Fire Tests of Roof Coverings

UL RMSD (2012) Roofing Materials and Systems Directory

SECTION 07 53 23 Page 3

1.2 DESCRIPTION OF ROOF MEMBRANE SYSTEM

Fully adhered.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Roof Plan Drawing; G

Wind Load Calculations; G

Boundaries of Enhanced Perimeter; G

Corner Attachments of Roof System Components; G

Location of Perimeter Half-Sheets; G

Spacing of Perimeter, Corner, and Infield Fasteners; G

Slopes and Drain Locations; G

SD-03 Product Data

Cement; G

EPDM Sheet; G; G

Seam Tape; G

Bonding Adhesive; G

Lap Splice Adhesive; G

Water Cutoff Mastic/Water Block; G

Lap Cleaner, Lap Sealant, and Edge Treatment; G

Flashings; G

Flashing Accessories; G

Flashing Tape; G

Fasteners and Plates; G

Roof Insulation; G

Protection Mat; G

Pre-Manufactured Accessories; G

Sample warranty certificate; G

SECTION 07 53 23 Page 4

Submit all data required together with requirements of this section. Include a written acceptance by the roof membrane manufacturer of the insulation and other products and accessories to be provided. List products in the applicable wind uplift and fire rating classification listings, unless approved otherwise by the Contracting Officer.

SD-05 Design Data

Wind Uplift Calculations; G

Engineering calculations validating the wind resistance of roof system.

SD-07 Certificates

Qualification of Manufacturer; G

Certify that the manufacturer of the roof membrane meets requirements specified under paragraph entitled "Qualification of Manufacturer."

Qualification of Applicator; G

Certify that the applicator meets requirements specified under paragraph entitled "Qualification of Applicator."

Wind Uplift Resistance classification, as applicable; G

Fire Resistance classification; G

Submit the roof system assembly wind uplift and fire rating classification listings.

SD-08 Manufacturer's Instructions

Application; G

Application Method; G, including pattern and frequency of mechanical attachments required in the field of roof, corners, and perimeters to provide for the specified wind resistance

Membrane Flashing; G

Seam Tape

Tape Seams/Lap Splices

Adhesive Seams/Lap Splices

Perimeter Attachment

Primer

Fasteners

Protection Mat

Pre-Manufactured Accessories

SECTION 07 53 23 Page 5

Cold Weather Installation; G

Include detailed application instructions and standard manufacturer drawings altered as required by these specifications.

Explicitly identify in writing, differences between manufacturer's printed instructions and the specified requirements.

SD-11 Closeout Submittals

Warranty

Information Card

Instructions To Government Personnel

Include copies of Material Safety Data Sheets for maintenance/repair materials.

1.3.1 Shop Drawings

Roof plan drawing depicting wind load calculations and boundaries of enhanced perimeter and corner attachments of roof system components, location of perimeter half-sheets, spacing of perimeter, corner, and infield fasteners, as applicable. The drawing must reflect the project roof plan of each roof level and conditions indicated. Provide all slopes and drain locations.

1.4 QUALITY ASSURANCE

1.4.1 Qualification of Manufacturer

EPDM sheet roofing membrane manufacturer must have at least 5 years experience in manufacturing EPDM roofing products.

1.4.2 Qualifications of Photovoltaics (PV) Rooftop Applicator

The PV rooftop applicator must be approved, authorized, or certified by a Roof Integrated Solar Energy (RISE) Certified Solar Roofing Professional (CSRP), and comply with applicable codes, standards, and regulatory requirements to maintain the weatherproofing abilities of both the integrated roof system and photovoltaic system.

1.4.3 Fire Resistance

Complete roof covering assembly must:

a. Be Class A rated in accordance with ASTM E108, FM 4470, or UL 790; and

b. Be listed as part of Fire-Classified roof deck construction in the UL RMSD or Class I roof deck construction in the FM APP GUIDE.

FM or UL approved components of the roof covering assembly must bear the appropriate FM or UL label.

1.4.4 Wind Uplift Resistance

The complete roof system assembly shall be rated and installed to resist wind loads calculated in accordance with ASCE 7 and validated by uplift

SECTION 07 53 23 Page 6 resistance testing in accordance with Factory Mutual (FM) test procedures.

Do not installnon-rated systems except as approved by the Contracting Officer. Submit licensed engineer's wind uplift calculations and substantiating data to validate any non-rated roof system. Base wind uplift measurements based on a design wind speed of 90 mph in accordance with ASCE 7 and/or other applicable building code requirements

1.4.5 Preroofing Conference

After approval of submittals and before performing roofing and insulation system installation work, hold a preroofing conference to review the following:

a. Drawings, specifications and submittals related to the roof work;

b. Roof system components installation;

c. Procedure for the roof manufacturer's technical representative's onsite inspection and acceptance of the roofing substrate, the name of the manufacturer's technical representatives, the frequency of the onsite visits, distribution of copies of the inspection reports from the manufacturer's technical representative;

d. Contractor's plan for coordination of the work of the various trades involved in providing the roofing system and other components secured to the roofing; and

e. Quality control plan for the roof system installation;

f. Safety requirements.

Coordinate preroofing conference scheduling with the Contracting Officer.

The conference must be attended by the Contractor, the Contracting Officer's designated personnel, personnel directly responsible for the installation of roofing and insulation, flashing and sheet metal work, mechanical and electrical work, other trades interfacing with the roof work, and representative of the roofing materials manufacturer. Before beginning roofing work, provide a copy of meeting notes and action items to all attending parties. Note action items requiring resolution prior to start of roof work.

1.5 DELIVERY, STORAGE, AND HANDLING

1.5.1 Delivery

Deliver materials in their original, unopened containers or wrappings with labels intact and legible. Where materials are covered by a referenced specification number, the labels must bear the specification number, type, class, and shelf life expiration date where applicable. Deliver materials in sufficient quantity to allow continuity of work.

1.5.2 Storage

Store and protect materials from damage and weather in accordance with manufacturer's printed instructions, except as specified otherwise. Keep materials clean and dry. Store and maintain adhesives, sealants, primers and other liquid materials above 60 degrees F. Insulated hot boxes or other enclosed warming devices must be required in cold weather. Mark and remove damaged materials from the site. Use pallets to support and canvas

SECTION 07 53 23 Page 7 tarpaulins to completely cover material materials stored outdoors. Do not use polyethylene as a covering. Locate materials temporarily stored on the roof in approved areas, and distribute the load to stay within the live load limits of the roof construction. Remove unused materials from the roof at the end of each days work.

1.5.3 Handling

Prevent damage to edges and ends of roll materials. Do not install damaged materials in the work. Select and operate material handling equipment so as not to damage materials or applied roofing. Do not use materials contaminated by exposure or moisture. Remove contaminated materials from the site. When hazardous materials are involved, adhere to the special precautions of the manufacturer. Adhesives may contain petroleum distillates and may be extremely flammable; prevent personnel from breathing vapors, and do not use near sparks or open flame.

1.6 ENVIRONMENTAL REQUIREMENTS

Do not install EPDM sheet roofing during high winds or inclement weather, or when there is ice, frost, moisture, or visible dampness on the substrate surface, or when condensation develops on surfaces during application.

Unless recommended otherwise by the EPDM sheet manufacturer and approved by the Contracting Officer, do not install EPDM sheet when air temperature is below 40 degrees F or within 5 degrees F of the dewpoint. Follow manufacturer's printed instructions for installation during cold weather conditions.

1.7 SEQUENCING

Coordinate the work with other trades to ensure that components which are to be secured to or stripped into the roofing system are available and that permanent flashing and counterflashing are installed as the work progresses. Ensure temporary protection measures are in place to preclude moisture intrusion or damage to installed materials. Application of roofing must immediately follow application of insulation as a continuous operation. Coordinate roofing operations with insulation work so that all roof insulation applied each day is covered with roof membrane installation the same day.

1.8 WARRANTY

Provide roof system material and workmanship warranties meeting specified requirements. Provide revision or amendment to standard membrane manufacturer warranty as required to comply with the specified requirements. Minimum manufacturer warranty shall have no dollar limit, cover full system water-tightness, and shall have a minimum duration of 20 years.

1.8.1 Roof Membrane Manufacturer Warranty

Furnish the roof membrane manufacturer's 20 year no dollar limit roof system materials and installation workmanship warranty, including flashing, insulation, and accessories necessary for a watertight roof system construction. The warranty must run directly to the Government and commence at time of Government's acceptance of the roof work. The warranty must state that:

a. If within the warranty period the roof system, as installed for its

SECTION 07 53 23 Page 8 intended use in the normal climatic and environmental conditions of the facility, becomes non-watertight, shows evidence of moisture intrusion within the assembly, splits, tears, cracks, delaminates, separates at the seams, shrinks to the point of bridging or tenting membrane at transitions, or shows evidence of excessive weathering due to defective materials or installation workmanship, the repair or replacement of the defective and damaged materials of the roof system assembly and correction of defective workmanship must be the responsibility of the roof membrane manufacturer. The roof membrane manufacturer is responsible for all costs associated with the repair or replacement work.

b. When the manufacturer or his approved applicator fail to perform the repairs within 72 hours of notification, emergency temporary repairs performed by others does not void the warranty.

1.8.2 Roofing System Installer Warranty

The roof system installer must warrant for a period of two years that the roof system, as installed, is free from defects in installation workmanship, to include the roof membrane, flashing, insulation, accessories, attachments, and sheet metal installation integral to a complete watertight roof system assembly. Write the warranty directly to the Government. The roof system installer is responsible for correction of defective workmanship and replacement of damaged or affected materials.

The roof system installer is responsible for all costs associated with the repair or replacement work.

1.8.3 Continuance of Warranty

Approve repair or replacement work that becomes necessary within the warranty period and accomplish in a manner so as to restore the integrity of the roof system assembly and validity of the roof membrane manufacturer warranty for the remainder of the manufacturer warranty period.

1.9 CONFORMANCE AND COMPATIBILITY

The entire roofing and flashing system must be in accordance with specified and indicated requirements, including fire and wind resistance requirements. Work not specifically addressed and any deviation from specified requirements must be in general accordance with recommendations of the NRCA RoofMan, membrane manufacturer published recommendations and details, ASTM D6369, and compatible with surrounding components and construction. Submit any deviation from specified or indicated requirements to the Contracting Officer for approval prior to installation.

PART 2 PRODUCTS

2.1 MATERIALS

Coordinate with other specification sections related to the roof work.

Furnish a combination of specified materials that comprise a roof system acceptable to the roof membrane manufacturer and meeting specified requirements. Protect materials provided from defects and make suitable for the service and climatic conditions of the installation.

2.1.1 EPDM Sheet

Ethylene Propylene Diene Terpolymer (EPDM), ASTM D4637/D4637M, Type I, SECTION 07 53 23 Page 9 non-reinforced, 0.090 inch nominal thickness, bi-laminate membrane for fully adhered application. The minimum thickness must not be less than minus 10 percent of the specified thickness value. EPDM membrane thickness specified is exclusive of backing material on the EPDM membrane. Principal polymer used in manufacture of the membrane sheet must be greater than 95 percent EPDM. Width and length of sheet must be maximum width attainable as recommended by the manufacturer to minimize field formed seams in the field of the roof.

Membrane Color: White (SRI > 78)

2.1.2 Seam Tape

Double-sided synthetic rubber tape, minimum 0.03 inch thick, minimum 3 inch wide. The roof membrane manufacturer must supply seam tape recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet materials to each other for the application specified and conditions encountered. 6 inch wide tape is required for seam seals along lines of mechanical attachment of membrane.

2.1.3 Lap Splice Adhesive

Low volatile organic compound (VOC) synthetic rubber adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for forming watertight bond of EPDM sheet membrane materials to each other in areas of membrane flashing. Do not use splice adhesive to form membrane seams in field of roof or at standard base flashing conditions.

2.1.4 Bonding Adhesive

Low volatile organic compound (VOC) adhesive as supplied by roof membrane manufacturer and recommended by the manufacturer's printed data for bonding EPDM membrane materials to insulation, wood, metal, concrete or other substrate materials. Do not use bonding adhesive to bond membrane materials to each other.

2.1.5 Lap Cleaner, Lap Sealant, and Edge Treatment

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.6 Water Cutoff Mastic/Water Block

As supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.7 Membrane Flashings and Flashing Accessories

Membrane flashing, including self-adhering membrane flashing, perimeter flashing, flashing around roof penetrations, and prefabricated pipe seals, must be minimum 0.060 inch minimum cured EPDM, as recommended by the roof membrane manufacturer. Use cured EPDM membrane to the maximum extent recommended by the roof membrane manufacturer. Limit uncured flashing material to reinforcing inside and outside corners and angle changes in plane of membrane, and to flash scuppers, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical.

SECTION 07 53 23 Page 10

2.1.7.1 Flashing Tape

EPDM-backed synthetic rubber tape, minimum 6 inch wide as supplied by the roof membrane manufacturer and recommended by the manufacturer's printed data.

2.1.8 Membrane Fasteners and Plates

Coated, corrosion-resistant fasteners as recommended by the roof membrane manufacturer and meeting the requirements of FM 4470 and FM APP GUIDE for Class I roof deck construction and the wind uplift resistance specified.

As supplied and warranted for the substrate type(s) by EPDM sheet manufacturer and recommended by EPDM sheet manufacturer's printed data.

2.1.8.1 Stress Plates for Fasteners

Flat corrosion-resistant round stress plates as recommended by the roof membrane manufacturer's printed instructions and meeting the requirements of FM 4470; not less than 2 inch in diameter. Provide pre-formed discs to prevent dishing or cupping.

2.1.8.2 Auxiliary Fasteners

Corrosion resistance screws, nails, or anchors suitable for intended attachment purpose and as recommended by the roof membrane manufacturer.

2.1.8.3 Powder-Driven Fasteners

Powder-driven fasteners may be used only when approved in writing.

2.1.8.4 Metal Disks

Provide flat metal disks of minimum 1 inch in diameter. Metal disks must be of nonferrous material compatible with the nails or fasteners.

2.1.9 Pre-Manufactured Accessories

Pre-manufactured accessories must be manufacturer's standard for intended purpose, compatible with the membrane roof system and approved for use by the roof membrane manufacturer.

2.1.10 Roof Insulation Below EPDM Sheet

Insulation system and facer material must be compatible with membrane application specified and as approved by the roof membrane manufacturer.

2.1.11 Wood Products

Do not allow fire retardant treated materials be in contact with EPDM membrane or EPDM accessory products, unless approved by the membrane manufacturer and the Contracting Officer.

2.1.12 Membrane Liner

Self-adhering EPDM membrane liner conforming to ASTM D4637/D4637M, or other waterproof membrane liner material as approved by the roof membrane manufacturer and the Contracting Officer.

SECTION 07 53 23 Page 11

2.2 FLASHING CEMENT

Provide a self-vulcanizing butyl compound flashing cement for splicing laps and for flashings workable at 20 degrees F. Obtain a recommendation for such flashing cement from the roofing membrane manufacturer.

PART 3 EXECUTION

3.1 EXAMINATION

Ensure that the following conditions exist prior to application of the roofing materials:

a. Drains, curbs, control joints, expansion joints, perimeter walls, roof penetrating components, and equipment supports are in place.

b. Surfaces are rigid, clean, dry, smooth, and free from cracks, holes, and sharp changes in elevation.

c. The plane of the substrate does not vary more than 1/4 inch within an area 10 by 10 feet when checked with a 10 foot straight edge placed anywhere on the substrate.

d. Substrate is sloped to provide positive drainage.

e. Walls and vertical surfaces are constructed to receive counterflashing, and will permit mechanical fastening of the base flashing materials.

f. Treated wood nailers are in place on non-nailable surfaces, to permit nailing of base flashing at minimum height of 8 inch above finished roofing surface.

g. Pressure-preservative treated wood nailers are fastened in place at eaves, gable ends, openings, and intersections with vertical surfaces for securing of membrane, edging strips, attachment flanges of sheet metal, and roof fixtures. Embedded nailers are flush with deck surfaces.

h. Avoid contact of EPDM materials with fire retardant treated wood, except as approved by the roof membrane manufacturer and Contracting Officer.

i. Cants are securely fastened in place in the angles formed by walls and other vertical surfaces. The angle of the cant is 45 degrees and the height of the vertical leg is not less than 3-1/2 inch.

j. Venting is provided in accordance with the following:

(1) Edge Venting: Perimeter nailers are kerfed across the width of the nailers to permit escape of gaseous pressure at roof edges.

(2) Underside Venting: Vent openings are provided in steel form decking for cast-in-place concrete substrate.

(3) Vapor pressure relief vents: Holes equal to the outside diameter of vents are provided through the insulation where vents are required. Space vents in accordance with membrane manufacturer's recommendations.

SECTION 07 53 23 Page 12

k. Exposed nail heads in wood substrates are properly set. Warped and split sheets have been replaced. There are no cracks or end joints 1/4 inch in width or greater. Joints in plywood substrates are taped or otherwise sealed to prevent air leakage from the underside.

l. Insulation boards are installed smoothly and evenly, and are not broken, cracked, or curled. There are no gaps in insulation board joints exceeding 1/4 inch in width. Insulation is being roofed over on the same day the insulation is installed.

3.2 APPLICATION

Apply entire EPDM sheet utilizing fully adhered application method. Apply roofing materials as specified herein unless approved otherwise by the Contracting Officer.

3.2.1 Special Precautions

a. Do not dilute coatings or sealants unless specifically recommended by the materials manufacturer's printed application instructions. Do not thin liquid materials with cleaners used for cleaning EPDM sheet.

b. Keep liquids in airtight containers, and keep containers closed except when removing materials.

c. Use liquid components, including adhesives, within their shelf life period. Store adhesives at 60 to 80 degrees F prior to use. Avoid excessive adhesive application and adhesive spills, as they can be destructive to some elastomeric sheets and insulations; follow adhesive manufacturer's printed application instructions. Mix and use liquid components in accordance with label directions and manufacturer's printed instructions.

d. Provide clean, dry cloths or pads for applying membrane cleaners and cleaning of membrane

e. Do not use heat guns or open flame to expedite drying of adhesives or primers.

f. Require workmen and others who walk on the membrane to wear clean, soft-soled shoes to avoid damage to roofing materials.

g. Do not use equipment with sharp edges which could puncture the EPDM sheet.

h. Shut down air intakes and any related mechanical systems and seal open vents and air intakes when applying solvent-based materials in the area of the opening or intake. Coordinate shutdowns with the Contracting Officer.

3.2.2 EPDM Sheet Roofing

Provide a watertight roof membrane sheet free of contaminants and defects that might affect serviceability. Provide a uniform, straight, and flat edge. Unroll EPDM sheet roofing in position without stretching membrane.

Inspect for holes. Remove sections of EPDM sheet roofing that are damaged.

Allow sheets to relax minimum 30 minutes before seaming. Lap sheets as specified, to shed water, and as recommended by the roof membrane manufacturer's published installation instructions for the application

SECTION 07 53 23 Page 13 required but not less than 3 inch in any case.

3.2.3 Application Method

3.2.3.1 Combined Fully Adhered and Mechanically Fastened Application

Install combined fully adhered and mechanically fastened roof membrane system in the manner specified and including seaming, perimeter and infield fastening and half sheets.

3.2.3.2 Fully Adhered Membrane Application

Layout membrane and side lap adjoining sheets in accordance with membrane manufacturer's printed installation instructions. Allow for sufficient membrane to form proper membrane terminations. Remove dusting agents and dirt from membrane and substrate areas where bonding adhesives are to be applied. Apply specified adhesive evenly and continuously to substrate and underside of sheets at rates recommended by the roof membrane manufacturer's printed application instructions. When adhesive is spray applied, roll with a paint roller to ensure proper contact and coverage.

Do not apply bonding adhesive to surfaces of membrane in seam or lap areas.

Allow adhesive to flash off or dry to consistency prescribed by manufacturer before adhering sheets to the substrate. Roll each sheet into adhesive slowly and evenly to avoid wrinkles; broom or roll the membrane to remove air pockets and fishmouths and to ensure full, continuous bonding of sheet to substrate. Form field lap splices or seams as specified. Check all seams and ensure full lap seal. Apply lap sealant to all adhesive formed seams and all cut edges of reinforced membrane materials.

3.2.4 Tape Seams/Lap Splices

Field form seams, or lap splices, with seam tape in accordance with membrane manufacturer's printed instructions and as specified. Clean and prime mating surfaces in the seam area. After primer has dried or set in accordance with membrane manufacturer's instructions, apply seam tape to bottom membrane and roll with a 3 inch to 4 inch wide smooth silicone or steel hand roller, or other manufacturer approved rolling device, to ensure full contact and adhesion of tape to bottom membrane. Tape end laps must be minimum 1 inch. Roll top membrane into position to check for proper overlap and alignment. Remove release paper from top of seam tape and form seam splice. Ensure top membrane contact with seam tape as release paper is removed. Roll the closed seam with a smooth silicone or steel hand roller, rolling first across the width of the seam then along the entire length, being careful not to damage the membrane. Apply minimum 9 inch long strip of membrane-backed flashing tape over T-intersections of roof membrane. Roll tape to ensure full adhesion and seal over T-joint.

3.2.5 Adhesive Seams/Lap Splices

Use only field-applied adhesive formed seams in flashing areas where approved by the membrane manufacturer and the Contracting Officer. Do not use adhesive formed seams for field of roof membrane seaming, except as approved by the membrane manufacturer and the Contracting Officer.

Thoroughly and completely clean mating surfaces of materials throughout the lap area. Remove all dirt, dust, and contaminants and allow to dry.

Apply primer as recommended by the membrane manufacturer. Apply splice adhesive with a 3 inch to 4 inch wide, 1/2 inch thick, solvent-resistant brush in a smooth, even coat with long brush strokes. Bleed out brush

SECTION 07 53 23 Page 14 marks. Do not apply adhesive in a circular motion. Simultaneously apply adhesive to both mating surfaces in an approximate 0.025 to 0.030 inch wet film thickness, or other thickness as recommended by the roof membrane manufacturer's printed instructions.

Allow the splice adhesive to set-up in accordance with membrane manufacturer's printed instructions. Perform manufacturer recommended field check to test for adhesive readiness prior to closing seam. Apply a 1/8 inch to 1/4 inch bead of in-seam sealant approximately 1/2 inch from the inside edge of the lower membrane sheet prior to closing the seam.

Ensure the in-seam sealant does not extend onto the splice adhesive.

Maintain the full adhered seam width required. Roll the top membrane onto the mating surface. Roll the seam area with a 2 inch to 3 inch wide, smooth silicone or steel hand roller. A minimum of 2 hours after joining sheets and when the lap edge is dry, clean the lap edge with membrane manufacturer's recommended cleaner and apply a 1/4 inch to 3/8 inch bead of lap sealant centered on the seam edge. With a feathering tool, immediately feather the lap sealant to completely cover the splice edge, leaving a mound of sealant over the seam edge. Apply lap sealant to all adhesive formed seams.

3.2.6 Perimeter Attachment

Adhesive bond or mechanically secure roof membrane sheet at roof perimeter in a manner to comply with wind resistance requirements and in accordance with membrane manufacturer's printed application instructions. When adhesively bonding a mechanically fastened system in perimeter areas, the perimeter boundary of the adhesive bond must be the same as the boundary required for additional perimeter mechanical fastening to meet wind resistance requirements.

3.2.7 Securement at Base Tie-In Conditions

Mechanically fasten the roof membrane at penetrations, at base of curbs and walls, and at all locations where the membrane turns and angle greater than 4 degrees (1:12). Space fasteners a maximum of 12 inch on center, except where more frequent attachment is required to meet specified wind resistance or where recommended by the roof membrane manufacturer. Flash over fasteners with a fully adhered layer of material as recommended by the roof membrane manufacturer's printed data.

3.3 FLASHINGS

3.3.1 General

Provide flashings in the angles formed at walls and other vertical surfaces and where required to make the work watertight, except where metal flashings are indicated.

Provide a one-ply flashing membrane, as specified for the system used, and install immediately after the roofing membrane is placed and prior to finish coating where a finish coating is required. Flashings must be stepped where vertical surfaces abut sloped roof surfaces. Provide sheet metal reglet in which sheet metal cap flashings are installed of not more than 16 inch nor less than 8 inch above the roofing surfaces. Exposed joints and end laps of flashing membrane must be made and sealed in the manner required for roofing membrane.

SECTION 07 53 23 Page 15

3.3.2 Membrane Flashing

Install flashing and flashing accessories as the roof membrane is installed. Apply flashing to cleaned surfaces and as recommended by the roof membrane manufacturer and as specified. Utilize cured EPDM membrane flashing and prefabricated accessory flashings to the maximum extent recommended by the roof membrane manufacturer. Limit uncured flashing material to reinforcing inside and outside corners and angle changes in plane of membrane, and to flashing scuppers, pourable sealer pockets, and other formed penetrations or unusually shaped conditions as recommended by the roof membrane manufacturer where the use of cured material is impractical. Extend base flashing not less than 8 inch above roofing surface and as necessary to provide for seaming overlap on roof membrane as recommended by the roof membrane manufacturer.

Seal flashing membrane for a minimum of 3 inch on each side of fastening device used to anchor roof membrane to nailers. Completely adhere flashing sheets in place. Seam flashing membrane in the same manner as roof membrane, except as otherwise recommended by the membrane manufacturer's printed instructions and approved by the Contracting Officer. Reinforce all corners and angle transitions by applying uncured membrane to the area in accordance with roof membrane manufacturer recommendations.

Mechanically fasten top edge of base flashing with manufacturer recommended termination bar fastened at maximum 12 inch on center. Install sheet metal flashing over the termination bar in the completed work. Mechanically fasten top edge of base flashing for all other terminations in a manner recommended by the roof membrane manufacturer. Apply membrane liner over top of exposed nailers and blocking and to overlap top edge of base flashing installation at curbs, parapet walls, expansion joints and as otherwise indicated to serve as waterproof lining under sheet metal flashing components.

3.3.3 Flashing at Roof Drain

Provide a tapered insulation sump into the drain bowl area. Do not exceed tapered slope of 18 degrees for unreinforced membrane and 5 degrees for reinforced membrane. Provide tapered insulation with surface suitable for adhering membrane in the drain sump area. Avoid field seams running through or within 24 inch of roof drain, or as otherwise recommended by the roof membrane manufacturer. Adhere the membrane to the tapered in the drain sump area. Apply water block mastic and extend membrane sheets over edge of drain bowl opening at the roof drain deck flange in accordance with membrane manufacturer's printed application instructions. Insure membrane free of wrinkles and folds in the drain area. Securely clamp membrane in the flashing clamping ring. Ensure membrane is cut to within 3/4 inch of inside rim of clamping ring to maintain drainage capacity. Do not cut back to bolt holes. Retrofit roof drains must conform to ANSI/SPRI RD-1.

3.3.4 PRE-FABRICATED CURBS

Securely anchor prefabricated curbs to nailer or other base substrate and flashed with EPDM membrane flashing materials.

3.3.5 Set-On Accessories

Where pipe or conduit blocking, supports and similar roof accessories, or isolated paver block, are set on the membrane, adhere reinforced membrane or walkpad material, as recommended by the roof membrane manufacturer, to bottom of accessories prior to setting on roofing membrane. Specific method

SECTION 07 53 23 Page 16 of installing set-on accessories must permit normal movement due to expansion, contraction, vibration, and similar occurrences without damaging roofing membrane. Do not mechanically secure set-on accessories through roofing membrane into roof deck substrate.

3.3.6 Lightning Protection

Flash lightning protection system components or attach to the roof membrane in a manner acceptable to the roof membrane manufacturer.

3.4 ROOF WALKPADS

Install walkpads at roof access points and where otherwise indicated for traffic areas and for access to mechanical equipment, in accordance with the roof membrane manufacturer's printed instructions. Provide minimum 6 inch separation between adjacent walkpads to accommodate drainage.

3.5 CORRECTION OF DEFICIENCIES

Where any form of deficiency is found, additional measures must be taken as deemed necessary by the Contracting Officer to determine the extent of the deficiency and corrective actions must be as directed by the Contracting Officer.

3.6 CLEAN UP

Remove debris, scraps, containers and other rubbish and trash resulting from installation of the roofing system from job site each day.

3.7 PROTECTION OF APPLIED ROOFING

At the end of the day's work and when precipitation is imminent, protect applied membrane roofing system from water intrusion.

3.7.1 Water Cutoffs

Straighten insulation line using loose-laid cut insulation sheets and seal the terminated edge of the roof membrane system in an effective manner.

Seal off flutes in metal decking along the cutoff edge. Remove the water cut-offs to expose the insulation when resuming work, and remove the insulation sheets used for fill-in.

3.7.2 Temporary Flashing for Permanent Roofing

Provide temporary flashing at drains, curbs, walls and other penetrations and terminations of roofing sheets until permanent flashings can be applied. Remove temporary flashing before applying permanent flashing.

3.7.3 Temporary Walkways, Runways, and Platforms

Do not permit storing, walking, wheeling, and trucking directly on applied roofing materials. Provide temporary walkways, runways, and platforms of smooth clean boards, mats or planks as necessary to avoid damage to applied roofing materials, and to distribute weight to conform to live load limits of roof construction. Use rubber-tired equipment for roofing work.

SECTION 07 53 23 Page 17

3.8 FIELD QUALITY CONTROL

3.8.1 Construction Monitoring

During progress of the roof work, Contractor must make visual inspections as necessary to ensure compliance with specified parameters. Additionally, verify the following:

a. Equipment is in working order. Metering devices are accurate.

b. Materials are not installed in adverse weather conditions.

c. Substrates are in acceptable condition, in compliance with specification, prior to application of subsequent materials.

d. Nailers and blocking are provided where and as needed.

e. Insulation substrate is smooth, properly secured to its substrate, and without excessive gaps prior to membrane application.

f. The proper number, type, and spacing of fasteners are installed.

g. Materials comply with the specified requirements.

h. All materials are properly stored, handled and protected from moisture or other damages. Liquid components are properly mixed prior to application.

i. Membrane is allowed to relax prior to seaming. Adhesives are applied uniformly to both mating surfaces and checked for proper set prior to bonding mating materials. Mechanical attachments are spaced as required, including additional fastening of membrane in corner and perimeter areas as required.

j. Membrane is properly overlapped.

k. Membrane seaming is as specified and seams are hand rolled to ensure full adhesion and bond width. In-seam sealant is applied when adhesive seams are used in the field of the roof. All seams are checked at the end of each work day.

l. Applied membrane is inspected and repaired as necessary prior to ballast installation.

m. Membrane is fully adhered without ridges, wrinkles, kinks, fishmouths.

n. Installer adheres to specified and detailed application parameters.

o. Associated flashings and sheet metal are installed in a timely manner in accord with the specified requirements.

p. Ballast is within the specified weight range.

q. Temporary protection measures are in place at the end of each work shift.

3.8.2 Manufacturer's Inspection

Manufacturer's technical representative must visit the site a minimum of

SECTION 07 53 23 Page 18 three times during the installation for purposes of reviewing materials installation practices and adequacy of work in place. Inspections must occur during the first 20 squares of membrane installation, at mid-point of the installation, and at substantial completion, at a minimum. Do not exceed additional inspections one for each 100 squares of total roof area with the exception that follow-up inspections of previously noted deficiencies or application errors must be performed as requested by the Contracting Officer. After each inspection, submit a report signed by the manufacturer's technical representative to the Contracting Officer within 3 working days. Note overall quality of work, deficiencies and any other concerns, and recommended corrective action.

3.8.3 Roof Drain Test

After completing roofing but prior to Government acceptance, perform the following test for watertightness. Plug roof drains and fill with water to edge of drain sump for 8 hours. Retrofit roof drains must conform to ANSI/SPRI RD-1. Do not plug secondary overflow drains at the same time as adjacent primary drain. To ensure some drainage from roof, do not test all drains at same time. Measure water at beginning and end of the test period. When precipitation occurs during test period, repeat test. When water level falls, remove water, thoroughly dry, and inspect installation;

repair or replace roofing at drain to provide for a properly installed watertight flashing seal. Repeat test until there is no water leakage.

3.9 INSTRUCTIONS TO GOVERNMENT PERSONNEL

Furnish written and verbal instructions on proper maintenance procedures to designated Government personnel. Furnish instructions by a competent representative of the roof membrane manufacturer and include a minimum of 4 hours on maintenance and emergency repair of the membrane. Include a demonstration of membrane repair, and give sources of required special tools. Furnish information on safety requirements during maintenance and emergency repair operations.

3.10 INFORMATION CARD

For each roof, furnish a typewritten information card for facility records anda photoengraved 0.032 inch thick aluminum card for exterior display.

Card must be 8-1/2 by 11 inch minimum. Information card must identify facility name and number; location; contract number; approximate roof area;

detailed roof system description, including deck type, membrane, number of plies, method of application, manufacturer, insulation and cover board system and thickness; presence of tapered insulation for primary drainage, presence of vapor retarder; date of completion; installing contractor identification and contact information; membrane manufacturer warranty expiration, warranty reference number, and contact information. Install card at roof top or access location as directed by the Contracting Officer and provide a paper copy to the Contracting Officer.

-- End of Section --

SECTION 07 53 23 Page 19

SECTION TABLE OF CONTENTS

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

SECTION 07 95 00

EXPANSION CONTROL

03/14

PART 1 GENERAL

1.1 DEFINITIONS

1.2 DESCRIPTION OF EXPANSION CONTROL

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 Manufacturer's Technical Representative

1.4.2 Qualification of Manufacturer

1.4.3 Certified Qualification of Installation Contractor

1.4.4 Single Source

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Elastomeric Seals

2.1.2 Accessories

2.2 ARCHITECTURAL JOINT SYSTEMS, GENERAL

2.3 ARCHITECTURAL JOINT SYSTEMS FOR BUILDING EXTERIORS

2.3.1 Available Manufacturers

2.3.1.1 Basis of Design Product

PART 3 EXECUTION

3.1 EXAMINATION

3.2 PREPARATION

3.3 INSTALLATION

3.4 CLEAN-UP AND DISPOSAL

SECTION 07 95 00 Page 1

SECTION 07 95 00

EXPANSION CONTROL

03/14

PART 1 GENERAL

1.1 DEFINITIONS

Maximum Joint Width: Widest linear gap a joint system tolerates and in which it performs its designed function without damaging its functional capabilities.

Minimum Joint Width: Narrowest linear gap a joint system tolerates and in which it performs its designed function without damaging its functional capabilities.

Movement Capability: Value obtained from the difference between widest and narrowest widths of a joint opening typically expressed in numerical values (mm or inches) or a percentage (plus or minus) of nominal value of joint width.

Maximum Joint Width: Widest linear gap a joint system tolerates and in which it performs its designed function without damaging its functional capabilities.

1.2 DESCRIPTION OF EXPANSION CONTROL

Architectural joint systems for building exteriors to accommodate multi-directional movement.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for Contractor Quality Control approval. Submit the following in accordance with Section 01 33 00

SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Installation Drawings ; G

SD-03 Product Data

Submit Manufacturer's catalog data for the following items:

Factory Color Finish; G Closure Materials; G Pressure Sensitive Tape; G Sealants and Caulking; G Accessories; G

SD-04 Samples

Submit as required each of the following samples:

Each specified Joint System, 12 inches long by actual width; G

SECTION 07 95 00 Page 2

Fasteners; G

Color chart and chips; G

Submit manufacturer's color charts and chips, approximately 4 by 4 inches, showing full range of colors, textures and patterns available for wall panels with factory applied finishes.

SD-06 Test Reports

Submit test reports for the following in accordance with the referenced articles in this section.

Leakage Tests; G Wind Load Tests; G

SD-07 Certificates

Qualification of Manufacturer; G Qualification of…