SECTION 07 54 23
THERMOPLASTIC-POLYOLEFIN ROOFING
** NOTE TO SPECIFIER ** IKO Roofing - Commercial; Single Ply Roofing System Solutions.
This section is based on the products of IKO Roofing - Commercial, which is located at:
6 Denny Rd., Suite 200
Wilmington, DE 19809
Tel: 302-516-0561
Email: request info (carol.perkins@iko.com)
Web: https://www.iko.com/comm
[ Click Here ] for additional information.
As a leader in commercial roofing products, IKO offers exceptional benefits. Launching the new IKO InnoviTPO single-ply roofing systems exemplifies IKO's founders' core values, entrepreneurial spirit, and commitment to quality. This holistic dedication to excellence brings new meaning to performance innovation. IKO InnoviTPO is manufactured in a leading-edge manufacturing facility designed to result in net zero wastage of the TPO product itself. Our TPO membranes have exceptional durability and longevity, and are designed to meet or exceed ASTM standards for weathering resistance. IKO InnoviTPO is produced without any chlorines or halogenated compounds in the formulation and can provide for LEED design credits. IKO offers a complete line of compatible roofing accessories, so the entire system can qualify for appropriate Diamond Shield limited warranties.
GENERAL
SECTION INCLUDES
** NOTE TO SPECIFIER ** Delete items below not required for project.
TPO Roofing:
Adhered system.
Induction welded system.
Mechanically Attached roofing system.
Roofing System Components:
Roofing membrane manufacturer's requirements for specified warranty.
Preparation of roofing substrates.
Wood nailers for roofing attachment.
Vapor barrier.
Insulation.
Cover boards.
Metal roof edging and copings.
Flashings.
Walkway pads.
Roofing accessories.
Items required to install complete weatherproof roofing systems.
RELATED SECTIONS
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
Section 06 10 00 - Rough Carpentry.
Section 07 22 00 - Roof and Deck Insulation.
Section 07 62 00 - Sheet Metal Flashing and Trim.
Section 07 71 00 - Roof Specialties.
Section 07 72 00 - Roof Accessories.
Section 08 62 00 - Unit Skylights.
Section 22 10 00 - Plumbing Piping and Roof Drains.
REFERENCES
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section; add others as required.
ASTM International (ASTM):
ASTM C 1177/C 1177M - Standard Specification for Glass Mat Gypsum Substrate for Use as Sheathing.
ASTM C 1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.
ASTM C 1549 - Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer.
ASTM D 638 - Standard Test Method for Tensile Properties of Plastics.
ASTM D 1004 - Standard Test Method for Initial Tear Resistance of Plastic Film and Sheeting.
ASTM D 3273 - Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber.
ASTM D6878/D6878M - Standard Specification for Thermoplastic Polyolefin Based Sheet Roofing.
ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
ASTM E 136 - Standard Test Method for Behavior of Materials in a Vertical Tube Furnace At 750 Degrees C.
Canadian Unlimited Liability Corporation:
CAN/ULC S-704.1 Standard for Thermal Insulation, Polyurethane and Polyisocyanurate Boards, Faced.
American National Standards Institute (ANSI):
ANSI/SPRI ES-1 - Wind Design Standard for Edge Systems Used with Low Slope Roofing Systems.
FM Global:
FM 1-28 - Design Wind Loads; Factory Mutual System.
FM 1-29 - Roof Deck Securement and Above Deck Roof Components; Factory Mutual System.
Voluntary Product Standards:
PS 1 - Construction and Industrial Plywood.
PS 20 - American Softwood Lumber Standard.
Underwriters Laboratories (UL).
SUBMITTALS
Submit under provisions of Section 01 30 00.
Applicator Approval Verification: Submit letter or certificate from manufacturer verifying applicator is approved to install roofing system for warranty type and term specified.
Product Data:
** NOTE TO SPECIFIER ** Delete documentation for FM approved systems if not required.
Manufacturer's data sheets on each roofing system component to be used, including insulation, fasteners, plates, and all accessories to demonstrate compliance with this specification, clearly indicating which installation options will be used.
Documentation substantiating system to be installed is UL Classified, including data for individual roofing system components.
Documentation substantiating system to be installed is FM approved, including data for individual roofing system components.
Preparation instructions and recommendations.
Storage and handling requirements and recommendations.
Installation instructions and typical installation methods.
Verification Samples: Two representative units of each product used.
Shop Drawings: Include manufacturer's standard details of materials, construction, and finish complying with requirements for warranty type and term specified. Include details of adjacent construction.
Warranty Application: Submit copy of manufacturer's accepted and approved Warranty Application for project.
Sample Warranty: Submit sample of manufacturer's warranty of type and term indicated in this specification prior to starting work.
Executed Warranty: Submit manufacturer's executed warranty for project upon substantial completion of the work.
QUALITY ASSURANCE
Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of five years documented experience.
Applicator Qualifications: Roofing installer must have the following:
Current IKO Approved Applicator status.
At least five years' experience in installing TPO roofing systems.
Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
PRE-INSTALLATION CONFERENCE
Before commencing work, schedule and attend meeting to review proper installation of specified roofing system and requirements to achieve warranty.
Invite Architect, Roof Consultant, General Contractor, and any other parties directly influencing the quality of roofing work or affected by the performance of roofing work.
Provide reasonable notice of meeting schedule in advance.
DELIVERY, STORAGE, AND HANDLING
Delivery roofing products to job site in manufacturer's original containers, dry, undamaged, with seals and labels intact and legible.
Protect from damage due to weather, excessive temperature, and construction operations.
Keep combustible materials away from ignition sources.
PROJECT CONDITIONS
Maintain environmental temperature, humidity, and ventilation within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
WARRANTY
Manufacturer's standard limited warranty unless otherwise indicated.
Installed roofing system must comply with all warranty procedures required by manufacturer, including warranty application and inspection procedures.
IKO Diamond Shield Limited Warranty: Covers membrane, roof insulation, and roofing accessories.
** NOTE TO SPECIFIER ** Delete duration and wind speed options not required.
Duration: 5 year.
Duration: 10 year.
Duration: 15 year.
Duration: 20 year.
Duration: 25 year.
Duration: 30 year.
Repair Roofing System Leaks Caused By:
Manufacturing defect.
Defective workmanship used to install materials.
Ordinary wear and tear of roofing components.
Damage Due to Wind Speed Up To: 55 mph.
Damage Due to Wind Speed Up To: 72 mph.
Damage Due to Wind Speed Up To: 80 mph.
Damage Due to Wind Speed Up To: 90 mph.
Damage Due to Wind Speed Up To: 100 mph.
Damage Due to Wind Speed Up To: 110 mph.
Damage Due to Wind Speed Up To: 120 mph.
Not Covered:
Wind speeds higher than those designated.
Damage due to hurricanes or tornadoes.
Hail.
Unintentional damage due to normal rooftop inspections, maintenance, or service.
Products not provided by the manufacturer, unless where written approval of the manufacturer is provided.
PRODUCTS
MANUFACTURERS
Acceptable Manufacturer: IKO Roofing - Commercial, which is located at:
6 Denny Rd., Suite 200
Wilmington, DE 19809
Tel: 302-516-0561
Email: request info (carol.perkins@iko.com);Web: https://www.iko.com/comm
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
Substitutions: Not permitted.
Requests for substitutions will be considered in accordance with the provisions of Section 01 60 00.
** NOTE TO SPECIFIER ** Delete article not required.
THERMOPLASTIC POLYOLEFIN (TPO) ROOFING MEMBRANE
Basis of Design: TPO Adhered Membrane Roofing System as manufactured and supplied by IKO Commercial.
Membrane: ASTM D 6878. Flexible, heat weldable sheet composed of thermoplastic polyolefin polymer with polyester weft inserted reinforcement.
Performance and Design Requirements:
Standards Compliance: UL Listed; FM Approved.
Puncture Resistance: FTM 101C Method 2031. 265 lbf (1174 N), minimum.
** NOTE TO SPECIFIER ** Delete SRI option not required.
Initial Solar Reflective Index (SRI): White: 94, minimum.
Initial Solar Reflective Index (SRI): Grey: 66, minimum.
** NOTE TO SPECIFIER ** Delete thickness option not required.
Membrane Thickness (Nominal): 45 mil (1.14 mm).
Membrane Thickness (Nominal): 60 mil (1.52 mm).
Membrane Thickness (Nominal): 80 mil (2.03 mm).
** NOTE TO SPECIFIER ** Delete color option not required.
Exposed Face Color: White.
Exposed Face Color: Grey.
Exposed Face Color: Tan.
Attachment: Fully adhered with manufacturer's recommended fasteners and plates.
Seams: Heat welded per manufacturer's instructions.
Maximum TPO Sheet Width: 12 ft (3.66 m).
Mechanically Fastened Membrane: 10 ft (3.05 m).
** NOTE TO SPECIFIER ** The 8 ft (2.44 m) mechanically fastened membrane gets a 25 to 30 year warranty.
Mechanically Fastened Membrane: 8 ft (2.44 m).
Adhered Membrane: 12 ft (3.66 m).
Induction Welded Membrane: 12 ft (3.66 m).
ACCESSORY ROOFINGMATERlALS
Adhesive and Sealants: As recommended by the manufacturer for application indicated, compatible with membrane roofing system.
General: Meeting VOC content limits of authorities having jurisdiction.
Insulation Adhesive: Manufacturer's two-component Low-VOC (Less than 5 g/L) urethane adhesive formulated to adhere roofing insulation to substrates.
Basis of Design: Millennium Insulation Adhesive.
Basis of Design: IKO Millennium PG-1 Pump Grade Two-Part Roofing Adhesive.
Basis of Design: IKO InnoviBond DUO Dual-Tank Adhesive.
Membrane Adhesive: Manufacturer's solvent based, Low VOC solvent based, or water based bonding adhesive formulated to adhere membrane and flashings to substrates.
** NOTE TO SPECIFIER ** Delete basis of design option not required.
Basis of Design: InnoviBond TPO Membrane Adhesive LVOC.
Basis of Design: InnoviBond TPO Membrane Adhesive.
Basis of Design: InnoviBond TPO Membrane Adhesive SPR (Sprayable).
Primer: One-part penetrating primer.
** NOTE TO SPECIFIER ** Delete primer option not required.
Basis of Design: InnoviPrime TPO Primer.
Basis of Design: InnoviPrime TPO Primer LVOC.
Pourable Sealer: Manufacturer's standard pourable sealant for use in sealant pockets, curb systems, and other liquid flashing applications.
Basis of Design: InnoviSeal One-Part Pourable Sealant - Liquid Flashing.
Seam Edge Treatment: Manufacturer's standard one-part polymer based edge sealant intended for sealing exposed polyester reinforcement scrim.
Basis of Design: InnoviSeal TPO Cut Edge Sealant LVOC.
Water Block Seal: Manufacturer's standard synthetic rubber based, non-skinning and non-curing, long term moisture barrier, intended for use with TPO membrane systems.
Basis of Design: InnoviSeal Water Stop Mastic.
Reinforced Sheet Flashing: Manufacturer's scrim reinforced membrane in same thickness and color as membrane.
Basis of Design: IKO Innovi TPO Membrane.
Non-reinforced Sheet Flashing: Manufacturer's unsupported membrane flashing in same color as membrane.
Basis of Design: InnoviFlash TPO Unsupported Flashing.
Membrane Flashings: Manufacturer's standard corner, curb, sealant pocket, joint covers, cover strips, and other TPO flashings for warranty term specified.
Basis of Design: InnoviFlash Series TPO products.
Prefabricated Pipe Flashings: Manufacturer's standard corner, curb, sealant pocket, pipe boot, scupper, joint covers, cover strips, and various other TPO flashings appropriate to the warranty term indicated above.
Basis of Design: IKO InnoviFlash Series TPO Products.
Basis of Design: IKO InnoviBoot Series TPO Products.
Roof Vents: As recommended by roof membrane manufacturer.
Basis-of-Design Product: InnoviFlash TPO 1-way Breather Vent.
Basis-of-Design Product: InnoviFlash TPO 2-way Breather Vent.
Slip Sheet: Manufacturer's 45 mil TPO Membrane.
Basis of Design: IKO Innovi TPO Membrane.
Metal Termination Bars: Manufacturer's standard All-Purpose (AP) or Heavy Duty (HD) predrilled stainless-steel or aluminum bars, with manufacturer's recommended anchors.
Basis of Design: InnoviFast Termination Bars, appropriate to substrate and warranty.
Fasteners and Plates: Manufacturer's standard fasteners and plates for fastening manufacturer's membrane, insulation, cover board, termination bar, batten bar to substrate.
Basis of Design: InnoviFast Fasteners and Plates, appropriate to substrate and warranty.
Basis of Design: InnoviWeld Induction Plates.
TPO Coated Metal: Manufacturer's TPO coated metal, installer-formed to terminate roof at structure perimeter, included in single-source roofing system warranty.
Basis of Design: InnoviEdge TPO Coated Metal.
Flexible Walkway Pads: Factory-formed, nonporous, heavy-duty, slip-resisting, surface-textured walkway pads sourced from membrane roofing system manufacturer.
Basis of Design: InnoviStep TPO Walkway Pad.
Miscellaneous Roofing Accessories: Provide Manufacturer's accessories required for full installation, appropriate to substrate, system, and warranty.
** NOTE TO SPECIFIER ** Delete miscellaneous roofing accessories not required.
Basis of Design: InnoviSeal Series TPO Products.
Basis of Design: InnoviPrime Series TPO Products.
Basis of Design: InnoviBoot Series TPO Products.
Basis of Design: InnoviFlash Series TPO Products.
Basis of Design: InnoviBond Series TPO Products.
Basis of Design: InnoviTape Series TPO Products.
COVER BOARD
High-Density Polyisocyanurate: ASTM C 1289, Type II, Class 4, Grade 3, high-density polyisocyanurate, bonded to mineral-surfaced, fiber glass reinforced facers.
Basis of Design: IKOTherm CoverShield.
Compressive Strength: 80 psi minimum.
Thickness: 1/2 inch (13 mm).
R-value: 2.5 minimum.
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** Boards are required for adhesive attachment. Delete board option not required.
Boards: 4 x 4 ft (1219 x 1219 mm).
Boards: 4 x 8 ft (1219 x 2438 mm).
Gypsum Board: ASTM C 1177, Heavy duty coated glass-mat facer, water-resistant gypsum substrate for fully adhered roof applications.
** NOTE TO SPECIFIER ** Delete gypsum board option not required.
Basis of Design: DensDeck Prime by Georgia Pacific.
Basis of Design: Securock Ultralight Coated Glass Mat Roof Board by USG.
Basis of Design: DEXcell Gypsum Board by National Gypsum.
** NOTE TO SPECIFIER ** Delete thickness option not required.
Thickness: 1/4 inch (6 mm).
Thickness: 1/2 inch (13 mm).
Thickness: 5/8 inch (16 mm).
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** The 4 x 4 ft (1219 x 1219 mm) board is required for adhesive attachment. Delete board option not required.
Boards: 4 x 4 ft (1219 x 1219 mm).
Boards: 4 x 8 ft (1219 x 2438 mm).
ROOF INSULATION
Preformed polyisocyanurate roof insulation boards complying with requirements and referenced standards, selected from manufacturer's standard sizes and of thicknesses indicated, in multiple layers:
** NOTE TO SPECIFIER ** Delete insulation and compressive strength options not required.
Standard Glass-Reinforced Facer Polyisocyanurate Foam Insulation.
Basis of Design: IKOTherm Polyisocyanurate Insulation.
Compressive Strength: 20 psi per CAN/ULC S 704 and ASTM C 1289.
Compressive Strength: 25 psi per CAN/ULC S 704 and ASTM C 1289.
Minimum Total Insulation Package R-value: As shown on the Drawings and as required by code.
Minimum Board Thickness: As shown on the Drawing.
Provide insulation package in multiple layers, with maximum thickness per layer as shown on the Drawings.
Minimum Long-Term Thermal Resistance: 5.7 per inch determined in accordance with CAN/ULC S770 at 75 degrees F (24 degrees C).
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** Boards are required for adhesive attachment. Delete board option not required.
Boards: 4 x 4 ft (1219 x 1219 mm).
Boards: 4 x 8 ft (1219 x 2438 mm).
Non-organic Coated Glass Facer Polyisocyanurate Foam Insulation.
Basis of Design: IKOTherm III Polyisocyanurate Insulation.
Compressive Strength: 20 psi per CAN/ULC S 704 and ASTM C 1289.
Compressive Strength: 25 psi per CAN/ULC S 704 and ASTM C 1289.
Minimum Total Insulation Package R-value: As shown on the Drawings and as required by code.
Minimum Board Thickness: As shown on the Drawings.
Provide insulation package in multiple layers, with maximum thickness per layer as shown on the Drawings.
Minimum Long-Term Thermal Resistance: 5.7 per inch determined in accordance with CAN/ULC S770 at 75 degrees F (24 degrees C).
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** The 4 x 4 ft (1219 x 1219 mm) board is required for adhesive attachment. Delete board option not required.
Boards: 4 x 4 ft (1219 x 1219 mm).
Boards: 4 x 8 ft (1219 x 2438 mm).
Tapered Insulation: Factory-tapered insulation boards, saddles, crickets, tapered edge strips, and other insulation shapes indicated for sloping to drain, per slope directions indicated.
** NOTE TO SPECIFIER ** Delete insulation and compressive strength options not required.
Standard Glass-Reinforced Facer Polyisocyanurate Foam Tapered Insulation:
Basis of Design: IKOTherm Tapered Insulation.
Compressive Strength: 20 psi per CAN/ULC S 704 and ASTM C 1289.
Compressive Strength: 25 psi per CAN/ULC S 704 and ASTM C 1289.
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** Boards are required for adhesive attachment.
Boards: 4 x 4 ft (1219 x 1219 mm).
Non-organic Coated Glass Facer Polyisocyanurate Foam Tapered Insulation:
Basis of design: IKOTherm III Tapered Insulation.
Compressive Strength: 20 psi per CAN/ULC S 704 and ASTM C 1289.
Compressive Strength: 25 psi per CAN/ULC S 704 and ASTM C 1289.
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** Boards are required for adhesive attachment.
Boards: 4 x 4 ft (1219 x 1219 mm).
** NOTE TO SPECIFIER ** Delete vapor retarder options not required.
VAPOR RETARDER
Polyethylene Sheet: CAN/CGSB-51.34, Type 1, 6mil (0.15mm) thick, loose laid, with sealed laps.
Polyethylene Sheet: CAN/CGSB-51.34, Type 1, 10mil (0.25mm) thick, loose laid, with sealed laps.
Self-Adhered SBS Vapor Retarder: ASTM D 6163, Grade S, Type I, glass-fiber-reinforced, SBS-modified asphalt sheet; suitable for application method specified.
Basis of Design: IKO Modified Vapour Protector MVP.
Asphalt Primer: ASTM D 41. Basis of Design: IKO S.A.M. Adhesive
Self-Adhered SBS Vapor Retarder: ASTM D 6163, Grade S, Type I, glass-fiber-reinforced, SBS-modified asphalt sheet; sand surfaced; suitable for application method specified.
Basis of Design: IKO Modified Vapour Protector MVP Sand.
Asphalt Primer: ASTM D 41. Basis of Design: IKO S.A.M. Adhesive.
Acrylic Sheet Vapor Retarder: Polyethylene film laminated to a layer of acrylic adhesive; Class 1 (0.02 perm), self-adhering, with slip resisting surface and release paper backing.
Basis of Design: IKO AcrylicStick SA.
THERMAL BARRIER
Gypsum Board: ASTM C 1177, Heavy duty coated glass-mat facer, water-resistant gypsum substrate for fully adhered roof applications.
** NOTE TO SPECIFIER ** Delete gypsum board and thickness options not required.
Basis of Design: DensDeck Prime by Georgia Pacific.
Basis of Design: Securock Ultralight Coated Glass Mat Roof Board by USG.
Thickness: 1/4 inch (6 mm).
Thickness: 1/2 inch (13 mm).
Thickness: 5/8 inch (16 mm).
** NOTE TO SPECIFIER ** Delete attachment option not required.
Attachment: Mechanically fastened.
Attachment: Adhered with IKO Millennium Insulation Adhesive.
** NOTE TO SPECIFER ** The 4 x 4 ft (1219 x 1219 mm) board is required for adhesive attachment. Delete board option not required.
Boards: 4 x 4 ft (1219 x 1219 mm).
Boards: 4 x 8 ft (1219 x 2438 mm).
WOOD NAILERS
Wood Nailers: Comply with requirements in Division 06 Section "Miscellaneous Rough Carpentry."
METAL ACCESSORIES
Metal Roof Edge and Fascia: Comply with requirements in Section 07 62 00 "Sheet Metal Flashing and Trim".
Parapet Metal Flashings and Coping: Comply with requirements in Section 07 62 00 "Sheet Metal Flashing and Trim".
EXECUTION
GENERAL
Applicator must submit a Warranty Application to manufacturer as notification that project requires manufacturer's warranty.
Comply with applicable federal, state, and local regulations.
Consult manufacturer's instructions, Product Data Sheets, product labels, and Safety Data Sheets (SDS) for specific safety instructions. Keep adhesives, sealants, primers, and cleaning materials away from sources of ignition.
Temporary closures and night seals are the responsibility of the applicator. All temporary enclosure measures must be fully completed to provide a watertight condition, including completion of flashings and terminations.
Applicator will take appropriate measures to protect adjacent construction, property, vehicles, and persons from damage related to roofing work, and repair or restore damage caused by their roofing work, including but not limited to:
Protection from spills and overspray from bitumen, adhesives, sealants, and coatings.
Protection of metal, glass, plastic, and painted surfaces within the range of wind-borne overspray.
Keep materials in their original containers as labeled by the Manufacturer until ready for use.
EXAMINATION
Do not begin installation until the substrates have been properly constructed and prepared.
If substrate preparation is the responsibility of another installer, notify Architect in writing of unsatisfactory preparation before proceeding.
PREPARATION
Clean surfaces thoroughly prior to installation.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
INSTALLATION
Commencement of work by the Contractor constitutes acknowledgement that this specification may be satisfactorily executed under the project conditions, and they have met all pre-work requirements for warranty of the completed roofing system by the manufacturer.
** NOTE TO SPECIFIER ** Delete roofing system components not required.
Install all specified roofing system components according to manufacturer's published instructions, approved submittals, warranty requirements, and recommendations for specified roofing system in proper relationship with adjacent construction.
Components include but are not limited to the following:
Vapor barrier.
Insulation and coverboard.
Membrane.
Edge securements.
Flashing.
Accessories.
Drainage components.
Walkway pads.
Where manufacturer provides no instructions or recommendations, follow best practices and industry standards.
VAPOR BARRIER INSTALLATION (SELF-ADHERED)
Remove all wrapping tape and labels from the roll before beginning. Do not remove the release film at this time. The sheet must be unrolled and aligned before installation.
** NOTE TO SPECIFIER ** If a drain is the lowest point, start here with the edge of the sheet bisecting the centerline of the drain.
Begin installation at the low point of the roof. Use chalk lines where necessary to ensure proper alignment.
All metal, wood, and concrete surfaces that come into contact with self-adhered vapor retarders must first be primed with Manufacturer's appropriate primer and be permitted to dry before applying the vapour retarder.
** NOTE TO SPECIFIER ** Priming steel and plywood decks is only required when the primary board layer above is not mechanically attached to the decking.
For self-adhered vapor retarders on steel or plywood decks, prime with IKO S.A.M. Adhesive and allow them to dry as per Manufacturer's recommendations.
Align vapor retarder sheets over male flutes on steel decks. While aligned, remove the release film from the backside of the vapor retarder and press the vapor retarder into full contact with male flutes. Press areas in contact with the decking to ensure a full bond. The membrane is to be rolled after installation with a 75 to 100 lbs. roller to ensure adhesion.
Align successive sheets of vapor retarder with the first. All laps are to be primed with Manufacturer's appropriate primer. Always join laps over a male flute. Overlap sides by three (3) inches (75 mm) minimum. End laps are to be six (6) inches (150 mm) minimum, and stagger end laps from each other by a minimum of twenty-four (24) inches (610 mm). End laps spanning the female flutes may require support. Cut the appropriate pieces of insulation and place them within the flute so that a level, continuous surface supports the end lap.
For self-adhered vapour retarders on all other suitable substrates, use a similar installation method as detailed above for steel decks.
INSULATION AND COVER BOARD INSTALLATION
Install only as much insulation as can be covered with the completed roofing system before the end of each day's work or prior to arrival of inclement weather. Do not unwrap insulation until immediately prior to installation.
Ensure that the insulation boards are laid over a minimum 1 inch (26 mm) bearing surface.
Install roof insulation in courses parallel to roof edges.
Neatly and tightly fit insulation to all penetrations, projections, and nailers, with gaps not greater than 1/4 inch (6 mm). Fill gaps greater than 1/4 inch (6 mm) with acceptable insulation. Do not leave the roofing membrane unsupported over a space greater than 1/4 inch (6 mm).
Mechanical Fastening:
Use appropriate fasteners and insulation plates. Engage fasteners through insulation into deck to depth and in pattern required by Manufacturer, or by Factory Mutual for the FM Class specified, whichever is more stringent.
Avoid penetration of conduits and other piping below or encased in the deck.
Fasteners should be fully seated, and must not be over driven. Use a properly adjusted clutch or depth-sensing drill. If a fastener must be removed after installation, do not reinstall fastener into the same hole.
Adhesive Attachment:
Use appropriate insulation adhesive. Follow Manufacturer's requirements for bead spacing and/or spray pattern. Weigh insulation boards during adhesive set-up period by using full buckets of adhesive or other material to ensure full contact of the adhesive to the boards.
INSTALLATION OF ADHERED SINGLE-PLY ROOF MEMBRANE
Install fully adhered membrane and flashings in accordance with ASTM D 4434 and Manufacturer's written instructions.
Ensure insulation panel surface is clean, flat and free from dirt, debris or sharp objects that might be detrimental to performance of membrane.
Beginning at the low point of roof, unroll the TPO membrane over the substrate without stretching it, and allow the membrane to relax at least 30 minutes before installing. Increase the relax time in colder weather. Inspect the membrane for any damage and remove any damaged or creased sections.
Always position all membrane panels and flashing materials so that they will shed water.
Install TPO membrane without wrinkles and gaps ("fishmouths") in the seams. Perform test welds of the membrane seams at the start of each work day and at any time the hot air welder has been shut off. Heat weld all membrane seams in accordance with the Manufacturer's instructions and details.
** NOTE TO SPECIFIER ** Membrane adhesive should never be applied in the seam area; immediately clean any adhesive from these areas completely.
Fully adhere the TPO membrane to substrate using Manufacturer's bonding adhesive, in accordance with published application rate and procedures.
Roll with a weighted roller, or broom with a stiff broom with heavy pressure to ensure complete bonding between adhesive and membrane.
Edge Securement: Secure membrane with appropriate fasteners at all locations where membrane terminates or goes through an angle change greater than 1 in 12 inches, using mechanically fastened reinforced perimeter fastening strips, plates, or metal edging as indicated or as recommended by Manufacturer.
Exceptions: Round pipe penetrations less than 18 inches (460 mm) in diameter and square penetrations less than 4 inches (200 mm) square.
Ensure anchorage of the TPO membrane at the roof edges using ES-1 rated edge metal or other edge metal products accepted by Manufacturer.
INSTALLATION OF MECHANICALLY ATTACHED SINGLE-PLY ROOF MEMBRANE
Beginning at the low point of roof, unroll the TPO membrane over the substrate without stretching it, and allow the membrane to relax at least 30 minutes before installing. Increase the relax time in colder weather.
Steel Decks: Position the membrane sheets such that the seams run perpendicular to the direction of the flutes on the deck sheets.
Always position all membrane panels and flashing materials so that they will shed water.
Install TPO membrane without wrinkles and gaps ("fishmouths") in the seams. Perform test welds of the membrane seams and laps in accordance with the Manufacturer's instructions and details.
Follow all requirements regarding fastening rates and fastener installation provided by the Manufacturer including but not limited to requirements stated in the Manufacturer's TPO Installation Manual, Attachment Guide, Detail Drawings, and Fastening Patterns.
Install the perimeter membrane sheets to meet the minimum requirements outlined in the Manufacturer's Attachment Guide or as required by either the project design professional or local building code.
Mechanically attach the TPO membrane to the substrate using appropriate InnoviFast fasteners and Seam Plates and install edge securement ("base tie-ins") as required by Manufacturer.
Install all fasteners and plates in the seams where indicated by the membrane markings, and ensure that they are fully covered by the overlapping membrane.
Position fasteners as recommended by Manufacturer or in compliance with FM Class specified in PART 2, whichever is most stringent.
Properly engage fasteners in the deck with head flush with the countersunk portion of the seam plate.
Edge Securement: Secure membrane with appropriate fasteners at all locations where membrane terminates or goes through an angle change greater than 1 in 12 inches , using mechanically fastened reinforced perimeter fastening strips, plates, or metal edging as indicated or as recommended by Manufacturer.
Exceptions: Round pipe penetrations less than 18 inches (460 mm) in diameter and square penetrations less than 4 inches (200 mm) square.
Ensure anchorage of the TPO membrane at the roof edges using ES-1 rated edge metal or other edge metal products accepted by Manufacturer.
INSTALLATION OF INDUCTION WELDED SINGLE-PLY ROOF MEMBRANE
Beginning at the low point of roof, unroll the TPO membrane over the substrate without stretching it, and allow the membrane to relax at least 30 minutes before installing. Increase the relax time in colder weather.
Always position all membrane panels and flashing materials so that they will shed water.
Install TPO membrane without wrinkles and gaps ("fishmouths") in the seams. Perform test welds of the membrane seams and laps in accordance with the Manufacturer's instructions and details.
Follow all guidance provided by the Manufacturer, including but not limited to the Manufacturer's Installation Manual, Attachment Guide, and Induction Weld Fastening Patterns for required fastening rates and locations of Induction Weld Plates and Fasteners.
The induction weld between the TPO membrane and Induction Weld Plate is created using an induction welding tool. All roofing applicators must complete an Induction Weld training course provided by the Manufacturer's Field Service Technician prior to installation.
Prior to commencing installation, perform an induction welding tool calibration, per the welding equipment manufacturer's instructions, making test samples in the field with the TPO membrane and Induction Weld Plate.
All membrane and all Induction Weld Plates must be clean and dry prior to beginning induction welding. Membrane will not weld successfully if this step is not followed.
Follow the induction welding tool manufacturer's published instructions and recommendations regarding welding of the membrane to the Induction Weld Plate. The induction welding tool must be correctly positioned directly over the center of the Induction Weld Plate. Cycle time will be affected by available power; use a heavy gauge power cord, minimum 12 gauge, and no more than 100 feet long.
When the induction welding cycle is complete, immediately place a weighted cooling magnet directly over the welded Induction Weld Plate for a minimum of 60 seconds to create the necessary contact between the membrane and the plate to ensure a positive weld.
Repeat steps G and H for every plate in assembly.
Edge Securement: Secure membrane with appropriate fasteners at all locations where membrane terminates or goes through an angle change greater than 1 in 12 inches , using mechanically fastened reinforced perimeter fastening strips, plates, or metal edging as indicated or as recommended by Manufacturer.
Exceptions: Round pipe penetrations less than 18 inches (460 mm) in diameter and square penetrations less than 4 inches (200 mm) square.
Ensure anchorage of the TPO membrane at the roof edges using ES-1 rated edge metal or other edge metal products accepted by Manufacturer.
FLASHING AND ACCESSORIES INSTALLATION
Install flashings, including laps, splices, joints, bonding, adhesion, and attachment, in accordance with Manufacturer's recommendations, instructions, and details.
Metal Accessories: Install edge metal, including TPO Coated Metal, drip edges, gutters, gravel stops, and copings in locations indicated on the drawings, with horizontal leg of edge member over membrane and flashing over metal onto membrane.
Follow Manufacturer's instructions, recommendations, and detail drawings.
Remove any protective surface film immediately before installation.
Install water block sealant under edge metal per Manufacturer's instructions.
Flash using Manufacturer's recommended flashing product per Manufacturer's detail drawings corresponding with the type and term of warranty specified, unless otherwise indicated.
Install flashing material to cover the edge metal products per Manufacturer's instructions and detail drawings. Apply additional flashing material wherever needed to meet the Manufacturer's requirements.
Install an additional piece of self-adhesive flashing membrane over edge metal laps to the top of the metal piece; apply appropriate TPO sealant at all intersections of flashing sections.
When the roof slope is greater than 1:12, apply appropriate TPO sealant along the back edge of the flashing.
Scuppers: Set in appropriate TPO sealant and secure to structure; flash as recommended by Manufacturer.
Roofing Expansion Joints: Install as shown on drawings and as recommended by Manufacturer.
Flashing at Walls, Curbs, and Other Vertical and Sloped Surfaces: Install Manufacturer's TPO flashing at all walls, curbs, parapets, curbs, skylights, and other vertical and sloped surfaces that the roofing membrane abuts to; extend flashing minimum 8 inches (200 mm) high above membrane surface.
Complete the splice on the horizontal before adhering flashing to the vertical surface.
Provide termination directly to the vertical substrate as shown on Manufacturer's detail drawings.
Roof Drains:
Taper insulation around drains to promote water flow to drainage. Use tapered insulation whenever possible to improve slope to drains. The slope is not to exceed Manufacturer's or designer's recommendations.
Position membrane over substrate, then cut a hole for roof drain to allow for 0.5 inch to 0.75 inch (12 to 19 mm) of membrane to extend inside clamping ring past drain bolts.
Make round holes in membrane to align with clamping bolts; do not cut membrane back to bolt holes.
Apply a minimum one-half of a full tube of water stop mastic on top of drain bowl where clamping ring seats below the membrane.
Install the roof drain clamping ring and clamping bolts; tighten all clamping bolts in order to achieve constant compression.
Flashings at Penetrations: All penetrations through the membrane must be completely flashed and sealed directly to the penetration, in accordance with Manufacturer's written instructions.
Pipes, Round or Square Supports, and similar penetrations: Flash with specified pre-molded TPO pipe flashings wherever practical; otherwise use specified self-curing flashing, if allowed for warranty type and term.
Hot Pipes: Any penetrations with an in-service temperature more than 160 degrees F (71.1 degrees C) must be flashed in a manner that fully protects the TPO membrane from the heat source. In all such cases, an intermediate "cool sleeve" must be installed around the hot pipe, and the flashing must seal only to the cool sleeve.
Pipe Clusters and Unusual Shaped Penetrations: Provide penetration sealant pocket at least 2 inches (50 mm) deep, with at least 1 inch (25 mm) clearance from penetration. Fill the penetration pocket with sealant, as recommended be Manufacturer, sloped to shed water.
Structural Steel Tubing: If corner radii are greater than 1/4 inch (6 mm) and longest side of tube does not exceed 12 inches (305 mm), flash as for pipes; otherwise, provide a standard curb with flashing.
Flexible and Moving Penetrations: Provide weathertight gooseneck set in sealant and secured to deck, flashed as recommended by Manufacturer.
WALKWAY PADS
Install walkway pads at all access points to the roof, around rooftop equipment that may require maintenance, and wherever indicated on the project drawings and documents.
Unroll walkway pad and allow the pad to relax prior to installation.
Install walkway pad in maximum 10 ft (3 m) long sections. Leave minimum 1 inch (26 mm) space between each section to allow for proper drainage. Place each section of walkway pad so that it does not result in ponding water.
Avoid applying the walkway pad over any TPO membrane seams.
Fully heat weld the perimeter of each section of walkway pad to the TPO membrane, leaving one or two 1 inch (26 mm) gaps in the weld at the low (downslope) side of the pad to allow for moisture to escape.
FIELD QUALITY CONTROL
Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
Manufacturer's Services: Coordinate manufacturer's services in accordance with appropriate sections in Division 01.
Inspections by Manufacturer: Inspection of the roofing system for warranty purposes by an IKO Field Service Technician; Technician will issue a punch list indicating items to be corrected prior to issuance of manufacturer's warranty.
Roofing applicator will perform all corrections necessary for issuance of warranty.
CLEANING AND PROTECTION
Clean products in accordance with the manufacturer's recommendations.
Clean all contaminants generated by roofing work from building and surrounding areas, including bitumen, adhesives, sealants, and coatings.
Touch-up, repair or replace damaged products before Substantial Completion.
Repair or replace building components and finished surfaces damaged or defaced due to roofing work; comply with recommendations of manufacturers of non-roofing components and surfaces.
Remove all leftover materials, trash, debris, equipment from project site and surrounding areas.
Protect all completed areas of work from all traffic, including traffic by other trades.
ONGOING CONSTRUCTION TRAFFIC AFTER ROOFING INSTALLATION
Where construction traffic must continue over finished TPO membrane, provide protection according to manufacturer's recommendation, and replace or repair any damaged roofing to original condition.