NOTE ** This section is based on products manufactured by Marathon Roofing Products Inc., which is located at the following address:
NOTE ** 367 Nagel Drive
NOTE ** Buffalo NY 14225-4732
NOTE ** Tel: (716) 685-3340
NOTE ** Tel: (800) 828-8424
NOTE ** Fax: (716) 685-1108
NOTE ** Website: http://www.marathondrains.com
NOTE ** E-mail: mrp@marathondrains.com
NOTE **
NOTE ** Marathon manufactures a complete line of roof drains and breather vents for new roofing, reroofing, and retrofit applications. Drain materials include copper, PVC, ABS, aluminum, and epoxy-coated cast iron. Vent materials include aluminum, copper, high-density polyethylene, and PVC. Custom products may be fabricated to suit almost any project condition, with factory assistance.
NOTE **
NOTE ** The section includes proprietary provisions for all types and styles of roof drains and breather vents, and must be edited to delete products and related provisions not required for a particular project.
NOTE **
NOTE ** SECTION 07710 - MANUFACTURED ROOF SPECIALTIES, Copyright 1998, The Architect's Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Delete items below not required for project.
A. Roof drains for new roofing.
B. Roof drains for reroofing.
C. Roof drains for retrofitting into existing roof drains.
D. Roof vents and breathers.
E. Soil vent stack flashings.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this project; add others as required.
A. Section 07500 - Membrane Roofing.
B. Section 07510 - Built-Up Bituminous Roofing.
C. Section 07530 - Elastomeric Membrane Roofing.
D. Section 07550 - Modified Bituminous Membrane Roofing.
E. Section 07590 - Roof Maintenance and Repairs.
F. Section 15150 - Sanitary Waste and Vent Piping.
G. Section 15160 - Storm Drainage Piping.
1.3 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Provide manufacturer's standard details and installation instructions.
1.4 PROJECT CONDITIONS
A. Obtain Material Safety Data Sheets (MSDS) from manufacturer if required.
PART 2 PRODUCTS
2.1 MANUFACTURER
A. Provide prefabricated roof specialties fabricated by Marathon Roofing Products, Inc: 367 Nagel Drive, Buffalo NY 14225-4732; ASD. Tel: (716) 685-3340 or (800) 828-8424; Fax: (716) 685-1108.
B. Substitutions: Not permitted.
NOTE ** Delete the following article if drains for new construction are not required.
2.2 FLANGE/PIPE DRAINS
A. Marathon Premium Century Series Roof Drains:
NOTE ** Select straight or funnel profile, as desired.
NOTE **
NOTE ** Straight profile with clamping ring (optional) is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.
NOTE **
NOTE ** For EPDM or CSPE membranes, straight profile is recommended with clamping ring.
NOTE **
NOTE ** Delete profiles not required.
1. Straight profile, solid copper construction.
2. Straight profile, solid copper construction, with clamping ring.
3. Funnel profile, solid copper construction.
NOTE ** Select uncoated flange for EPDM and CSPE membranes, primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPE membranes. Delete two of the three coating options, below.
4. 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. Perforated copper gravel ring.
NOTE ** HDPE strainer is standard, aluminum is optional. Delete one of the two materials, below.
NOTE ** Select applicable connection types. Delete those not required. All types are available in 2, 3, and 4 inch sizes. Plain and Fernco connections are also available in 6 inch size.
7. Connections: Pipe size as indicated on the drawings.
a. Plain, 9-inch (228 mm) depth.
b. Plain, 15-inch (381 mm) depth.
c. Expansion coupler (Fernco) with stainless steel compression clamps; vertical or 90 degree outlet to suit project conditions, or as indicated.
d. PVC hub (Conectite) fitting, vertical outlet only to suit project conditions, or as indicated.
B. Marathon Economy Century Series Roof Drains:
1. Straight profile, solid copper construction.
NOTE ** Select primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPE membranes. (For EPDM and CSPE membranes, see Century Premium Series drains, below.) Delete one of the two coating options, below.
2. 14-inch (355 mm) diameter flange, 16 ounces per square foot (48.8 kg/sq m) copper.
a. Primed for adhesion to asphaltic membranes.
b. PVC-coated, for heat welded membrane attachment.
3. Perforated copper gravel ring.
NOTE ** HDPE strainer is standard, aluminum is optional. Delete one of the two materials, below.
4. Strainer: 5-inch (127 mm) diameter.
a. High density polyethylene.
b. Cast aluminum alloy.
NOTE ** Select applicable connection types. Delete those not required. All types are available in 2, 3, and 4 inch sizes.
5. Connections: Match pipe size O.D. as indicated on the drawings.
a. Plain, 9-inch (228 mm) depth.
b. Plain, 15-inch (381 mm) depth.
c. Expansion coupler (Fernco) with stainless steel compression clamps; vertical or 90 degree outlet to suit project conditions, or as indicated.
d. PVC hub (Conectite) fitting, vertical outlet to suit project conditions, or as indicated.
NOTE ** Delete the following article if drains for retrofitting into existing drain bodies are not required. Diamond Series copper roof drains are appropriate to retrofit existing drains without removing existing drain or piping. These drains are simply and economically installed using rubber sealant and O-rings to create a friction fit. Where a mechanical seal is required, see "PROLINER", a flange/expansion-sleeve or flange/mechanical-seal drain, below. See also "COPPER-TITE," a sealed in-place retrofit drain.
2.3 FLANGE/INSERT RETROFIT DRAINS
A. Marathon Diamond (75) Series Roof Drains:
NOTE ** Select straight or funnel profile, as desired. Drain styles older than 1950 typically accept only straight profile.
NOTE **
NOTE ** Straight profile with clamping ring is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.
NOTE **
NOTE ** For EPDM or CSPE membranes, straight profile is recommended with clamping ring.
NOTE **
NOTE ** Delete profiles not required.
1. Straight profile, solid copper construction. Flange: 14-inch (355 mm) diameter flange, 16 ounces per square foot (48.8 kg/sq m) copper for 2-inch (50 mm) through 4-inch (101 mm) drain sizes; 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper for 5-inch (127 mm) and 6-inch drain sizes.
2. Straight profile, solid copper construction, with bolted down clamping ring. Flange: 14-inch (355 mm) diameter flange, 16 ounces per square foot (48.8 kg/sq m) copper for 2-inch (50 mm) through 4-inch (101 mm) drain sizes; 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper for 5-inch (127 mm) and 6-inch (152 mm) drain sizes.
3. Straight profile, solid copper construction, with clamping ring. Flange: 14-inch (355 mm) diameter flange, 16 ounces per square foot (48.8 kg/sq m) copper for 2-inch (50 mm) through 4-inch (101 mm) drain sizes; 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper for 5-inch (127 mm) and 6-inch (152 mm) drain sizes.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated flange for PVC and CPE membranes. Delete two of the three coating options, below.
5. Flange coating:
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
a. 5-inch (127 mm) diameter for straight profile 2-inch (50 mm) through 4-inch (101 mm) drain sizes.
b. 10-inch (254 mm) diameter for straight profile 5-inch (127 mm) and 6-inch (152 mm) drain sizes.
c. 10-inch (254 mm) diameter for funnel profile drains.
NOTE ** HDPE strainer is standard, aluminum is optional. Delete one of the two materials, below.
d. High density polyethylene.
e. Cast aluminum alloy.
NOTE ** Select applicable connection types. Delete those not required. Straight profile drains are available in 9 and 15-inch depths. Funnel profile drains are available in 12 and 18-inch depths. All types are available in 2, 3, 4, 5, and 6 inch sizes, and larger sizes upon request.
8. Connections: Pipe size as indicated on the drawings; diameter sized to slip inside of existing drain piping.
a. Plain, 9-inch (228 mm) depth.
b. Plain, 15-inch (381 mm) depth.
c. Plain, 12-inch (304 mm) depth.
d. Plain, 18-inch (457 mm) depth.
NOTE ** Delete the following article if drains for retrofitting into existing drain bodies are not required. PROLINER Series roof drains with copper flange and malleable metal outlets are appropriate to retrofit existing drains without removing existing drain or piping, where a permanent mechanical seal between the new drain and the existing piping is required. The PROLINER tool is used to mechanically lock the PROLINER drain in place.
2.4 FLANGE/EXPANSION-SLEEVE RETROFIT DRAINS
A. Marathon PROLINER Series.
NOTE ** Select straight or funnel profile, as desired. Drain styles older than 1950 typically accept only straight profile.
NOTE **
NOTE ** Straight profile with clamping ring is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.
NOTE **
NOTE ** For EPDM or CSPE membranes, straight profile is recommended with clamping ring.
NOTE **
NOTE ** Delete profiles not required.
1. Straight profile.
2. Straight profile, with clamping ring.
3. Funnel profile.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated flange for PVC and CPE membranes. Delete two of the three coating options, below.
4. Flange: 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. Perforated copper gravel ring.
NOTE ** HDPE strainer is standard, aluminum is optional. Delete one of the two materials, below.
6. Strainer: 10-inch (254 mm) diameter.
a. High density polyethylene.
b. Cast aluminum alloy.
NOTE ** Outlets are available to retrofit standard 3, 4, 5, and 6-inch sizes and other non-standard sizes.
7. Outlet: Malleable metal alloy. Pipe size as indicated on the drawings; diameter sized to slip inside of existing drain piping, with 1/4-inch (6 mm) maximum difference between existing pipe I.D. and outlet O.D.
NOTE ** Delete the following article if drains for retrofitting into existing drain bodies are not required. ProSeal Series roof drains with copper flange and mechanical compression seal are appropriate to retrofit existing drains without removing existing drain or piping, where a permanent mechanical seal between the new drain and the existing piping is required.
2.5 FLANGE/MECHANICAL-SEAL RETROFIT DRAINS
A. Marathon Copper-Tite Series Roof Drains:
NOTE ** Select straight or funnel profile, as desired. Drain styles older than 1950 typically accept only straight profile.
NOTE **
NOTE ** Straight profile with clamping ring is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.
NOTE **
NOTE ** For EPDM or CSPE membranes, straight profile is recommended with clamping ring.
NOTE **
NOTE ** Delete profiles not required.
1. Straight (CTS) profile.
2. Straight profile with clamping ring.
3. Funnel (CTF) profile.
NOTE ** Select plain flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated flange for PVC and CPE membranes. Delete two of the three finish options, below.
4. Flange: 20 ounces per square foot (61 kg/sq m) copper.
a. Plain finish
b. Asphalt primed finish.
c. PVC-coated finish.
NOTE ** Flange size is 14 inches (356 mm) in diameter for 2, 3, and 4-inch (51, 76, and 102 mm) straight (CTS) drains, 18 inches (457 mm) in diameter for all others. Delete one of the two sizes, below.
5. Flange size: 14 inches (356 mm).
6. Flange size: 18 inches (457 mm).
NOTE ** Plastic strainer is standard, aluminum is optional. Delete one of the two materials, below.
7. Strainer: Plastic.
8. Strainer: Aluminum.
NOTE ** For straight (CTS) drains, 9-inch (229 mm) long outlets are available to retrofit standard 2, 3, 4, 5, 6, and 8-inch (51, 76, 102, 127, 152, and 203 mm) drain pipes; drain outlets may be ordered extended by 6 inches (152 mm).
NOTE **
NOTE ** For straight drains with clamping ring, 9-inch (229 mm) long outlets are available to retrofit standard 2, 3, 4, 5, and 6-inch (51, 76, 102, 127, and 152 mm) drain pipes; drain outlets may be ordered extended by 6 inches (152 mm).
NOTE **
NOTE ** For funnel (CTF) drains, 12-inch (305 mm) long outlets are available to retrofit standard 2, 3, 4, 5, and 6-inch (51, 76, 102, 127, and 152 mm) drain pipes; drain outlets may be ordered extended by 6 inches (152 mm).
9. Outlet: Copper outlet with 2-inch (51 mm) wide asphalt-impregnated high density expanding foam compression seal. Pipe size as indicated on the drawings; diameter sized to slip inside of existing drain piping, with 1/4-inch (6 mm) maximum difference between existing pipe I.D. and outlet O.D.
B. Marathon ProSeal Series Roof Drains:
NOTE ** Select straight or funnel profile, as desired. Drain styles older than 1950 typically accept only straight profile.
NOTE **
NOTE ** Straight profile with clamping ring is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.
NOTE **
NOTE ** For EPDM or CSPE membranes, straight profile is recommended with clamping ring.
NOTE **
NOTE ** Delete profiles not required.
1. Straight profile.
2. Straight profile, with clamping ring.
3. Funnel profile.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated flange for PVC and CPE membranes. Delete two of the three coating options, below.
4. Flange: 18-inch (457 mm) diameter flange, 20 ounces per square foot (61 kg/sq m) copper.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. Perforated copper gravel ring.
NOTE ** HDPE strainer is standard, aluminum is optional. Delete one of the two materials, below.
6. Strainer: 10-inch (254 mm) diameter.
a. High density polyethylene.
b. Cast aluminum alloy.
NOTE ** Outlets are available to retrofit standard 3, 4, 5, and 6-inch sizes.
7. Outlet: Copper outlet with elastomeric mechanical compression seal. Pipe size as indicated on the drawings; diameter sized to slip inside of existing drain piping, with 1/4-inch (6 mm) maximum difference between existing pipe I.D. and outlet O.D.
NOTE ** Delete the following article if mechanical drains are not required.
NOTE ** ULRD drains (PVC or ABS body), RD-1 and RD-10 drains (epoxy-coated cast iron body) are suitable for most single ply and conventional built-up roofing membranes and with roof decks of steel, wood, precast concrete, and gypsum.
2.6 MECHANICAL DRAINS
NOTE ** Select either PVC, ABS, or epoxy-coated cast iron drain body. Delete inapplicable paragraphs, below.
A. Marathon ULRD (Utility Large Roof Drain): Injection molded PVC drain body with solvent-weld style outlet.
B. Marathon ULRD (Utility Large Roof Drain): Injection molded ABS drain body with solvent-weld style outlet.
C. Marathon RD-1: Epoxy-coated standard size cast iron drain body with no-hub style outlet.
D. Marathon RD-10: Epoxy-coated large size cast iron drain body with no-hub style outlet.
E. Construction:
NOTE ** Select either polyethylene or metal strainer, below. Delete any other construction features that are not required.
1. Strainer: Molded polyethylene dome.
2. Strainer: Epoxy-coated metal dome.
3. Clamping ring: Epoxy-coated aluminum.
4. Underdeck clamp: Aluminum
5. Adjustable insulation extension flange: Match insulation thickness.
6. Bearing pan.
7. Waterproofing flange.
8. Flow-control device.
9. Flexible expansion coupling with stainless steel band clamps.
NOTE ** PVC and ABS drains are available in 3, 4, and 6-inch sizes. Cast iron drains are available in 3, 4, 6, and 8-inch sizes.
F. Pipe size as indicated on the drawings.
NOTE ** Delete the following article if parapet/scupper drains are not required.
2.7 PARAPET SCUPPER DRAINS
A. Marathon RD-27.
B. Construction:
1. Cast aluminum grate, body, and outlet.
2. Reversible hub connection for 45 or 90-degree outlet.
NOTE ** Select either angled grate (standard) or flat grate (optional).
3. Angled grate.
4. Flat grate.
NOTE ** Select either red epoxy paint finish (standard) or nickel bronze finish.
5. Red epoxy finish.
6. Nickel bronze finish.
NOTE ** Delete the following article if roof vents are not required.
2.8 ROOF VENTS AND BREATHERS
NOTE ** Select type of vents desired from paragraphs below. Delete those that are not required.
NOTE **
NOTE ** Vents are designed to assist in relieving pressure created by moisture in lightweight insulating concrete materials, and for venting conventional roofing insulation.
A. Solar Powered Roof Vent: Marathon Sol-A-Vent; continuous-operation exhaust fan powered by 4 inch (100 mm) diameter photoelectric cell and battery.
1. Battery: Rechargeable NiCad battery charged by cell capable of powering fan for 3 overcast days and nights.
2. Minimum capacity: 900 cubic feet (25 cu m) per hour.
3. Housing: Aluminum; flanged for flashing into roofing, adjustable pitch to adapt to sloped roofs.
NOTE ** Delete one of the following two paragraphs. Chrome plated cap is an option at extra cost.
4. Cap: Same as housing.
5. Cap: Chrome plated.
6. Housing diameter: 8-3/4 inches (222 mm).
7. Height: 8 inches (203 mm).
NOTE ** Delete the following if not applicable -- applies to aluminum only.
8. Flange: Asphalt-coated.
B. Marathon Aluminum Insulvent:
1. Heavy gage spun aluminum.
2. Secured cap to prevent entry of wind-blown rain or snow.
3. 4-inch (101 mm) diameter base opening.
4. 10-3/4 inch (273 mm) diameter flange.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated for PVC membranes. Delete all but one of the coating options, below.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. 8-1/2 inches overall height.
NOTE ** Select either one or two-way design. Delete optional insulation if not required.
6. One-way valve to prevent moisture re-entry.
7. Two-way design to allow both exhaust and convective air movement to create equalized pressure.
8. Expanded polystyrene foam insulation, to prevent condensation.
NOTE ** In the following paragraph, select either Medium Capacity or Large Capacity.
C. Marathon Aluminum MC (Medium Capacity) and LC (Large Capacity) Vent:
1. Heavy gage spun aluminum.
2. Secured cap to prevent entry of wind-blown rain or snow.
3. MC: 8-inch (203 mm) diameter base opening and 10-inch (254 mm) diameter flange.
4. LC: 10-inch (254 mm) diameter base opening and 12-inch (304 mm) diameter flange.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated for PVC membranes. Delete all but one of the coating options, below.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. MC: 6-1/2 inches (165 mm) overall height.
6. LC: 8 inches (203 mm) overall height.
NOTE ** Select either one or two-way design. Delete optional insulation if not required.
7. One-way valve to prevent moisture re-entry.
8. Two-way design to allow both exhaust and convective air movement to create equalized pressure.
9. Expanded polystyrene foam insulation.
D. Marathon Aluminum SC Vent (Small Capacity):
1. Heavy gage spun aluminum.
2. Secured cap to resist vandals.
3. 2-7/8-inch (73 mm) diameter base opening.
4. 6-inch (152 mm) diameter flange.
NOTE ** Select uncoated flange for EPDM membranes, primed flange for BUR and modified bitumen membranes, PVC-coated for PVC membranes. Delete all but one of the coating options, below.
a. Uncoated.
b. Primed for adhesion to asphaltic membranes.
c. PVC-coated, for heat welded membrane attachment.
5. 4-1/4 inches (108 mm) overall height.
NOTE ** Select either one or two-way design.
6. One-way valve to prevent moisture re-entry.
7. Two-way design to allow both exhaust and convective air movement to create equalized pressure.
E. Marathon Ex-Flow Insulation Vent:
NOTE ** Select either HDPE for bituminous membranes, or PVC for PVC and urethane foam membranes.
1. High density polyethylene construction.
2. PVC construction.
3. Secured cap to prevent entry of wind-blown rain or snow.
4. 5-1/4-inch (133 mm) diameter base opening.
5. 10-1/2-inch (266 mm) diameter flange.
6. 8 inches (203 mm) overall height.
7. One-way valve to prevent moisture re-entry.
2.9 SOIL VENT STACK FLASHINGS
A. Marathon High Security Vent Stack Flashing:
1. Lead-free, tamper-resistant construction.
2. Heavy gage spun aluminum.
3. 7-inch (177 mm) diameter base opening; 4-inch (101 mm) DWV pipe capacity with hub.
4. 15-1/4-inch (387 mm) diameter flange.
5. 15-1/4 inches (387 mm) overall height.
PART 3 EXECUTION
3.1 EXAMINATION
A. Verify that dimensions are correct and substrate is in proper condition for installation. Correct unsatisfactory conditions before proceeding with installation.
B. Verify elevation of drain to provide positive drainage.
NOTE ** Delete the following article if no retrofit drains are required.
3.2 PREPARATION
A. Remove bitumen, gravel, debris, adhesives, etc., from existing drain and pipe inlet. Ensure that surface of drain and pipe inlet is clean and dry; employ hot air gun if necessary to remove moisture. Verify that I.D. of existing drain does not exceed O.D. of new outlet by more than 1/4 inch (6 mm).
B. Verify that deck opening is sufficient to accommodate the O.D. of connector. Where large existing drain bowl is encountered use funnel profile. If using new straight profile drain, provide support for the flange by installing 1/2 inch (12 mm) pressure-preservative-treated plywood, rigid high compressive strength insulation, or by filling bowl with spray polyurethane foam.
3.3 ROOF DRAIN INSTALLATION
NOTE ** Retain installation paragraphs below of products specified in Part 2. Delete inapplicable paragraphs.
A. Flange Drains:
1. Set flange in a full bed of mastic or adhesive, and mechanically fasten flange through roofing assembly to the deck.
2. Strip in drain flange in accordance with membrane manufacturer's instructions.
NOTE ** Delete one or both the following paragraphs if inapplicable.
3. Do not allow flame of torch used to apply modified bitumen to come in contact with flange.
4. Hand tighten clamping ring with 7/16-inch (11 mm) hand wrench.
3.4 ROOF DRAIN OUTLET CONNECTIONS
NOTE ** Retain connection instructions, below, applicable to roof drains specified in Part 2. Delete inapplicable paragraphs.
NOTE **
NOTE ** Connection of drain outlets to new or existing piping must be specified either in this section, or in Division 15. Mechanical drains are commonly installed by plumbing trades. Retrofit-style drains are commonly installed by roofing trades.
A. Flange/Pipe Roof Drains:
NOTE ** Of the three paragraphs, below, retain only those outlet styles that have been retained in Part 2, above.
1. Connect to piping in accordance with provisions specified in Division 15.
2. Expansion connections: Hand tighten compression bands with torque wrench calibrated to 60 inch-pounds (759,600 N m). Adjust if required to make water tight.
3. PVC hub fittings: Solvent weld using compatible solvent cement in accordance with manufacturer's instructions to achieve a water tight connection.
B. Flange/Sleeve Drains:
1. Set drain outlet inside of existing drain, using rubber type sealant and O-rings to ensure a water-tight connection between drain and existing pipe.
C. Flange/Expansion-Sleeve Drains:
1. Apply sealant to outlet and existing drain leader. Apply an additional amount to top inside of existing drain pipe. Spread sealant evenly around whole outlet, extending at least 5 inches (127 mm) up lower portion.
2. Set drain outlet inside of existing drain.
3. Expand malleable metal outlet at beginning at top of drain pipe and leaving 1 inch (25 mm) distance between expansions. Use Proliner Expander Tool Kit with properly sized accessories. Use 12 half-turns for 3-inch (76 mm) and 4-inch (101 mm) diameter drains, and 9 half-turns for 5-inch (127 mm) and 6-inch (152 mm) diameter drains. Verify that outlet has been sufficiently expanded to ensure a water-tight connection between drain and existing pipe. Adjust if necessary.
D. Flange/Mechanical-Seal Retrofit Drains:
1. Set drain outlet inside of existing drain.
2. Uniformly tighten the 3 seal screws until quite snug to ensure a water-tight connection between drain and existing pipe.
E. Mechanical Drains:
NOTE ** Of the three paragraphs, below, retain only those outlet styles that have been retained in Part 2, above.
1. Connect to piping in accordance with provisions specified in Division 15.
2. Expansion connections: Hand tighten compression bands with torque wrench calibrated to 60 inch-pounds (759,600 N m). Adjust if required to make water tight.
3. PVC hub fittings: Solvent weld using compatible solvent cement in accordance with manufacturer's instructions to achieve a water tight connection.
F. Parapet/Scupper Drains: Connect to piping in accordance with provisions specified in Division 15.
G. Install strainer domes.
NOTE ** Delete the following article if roof vents are not required.
3.5 ROOF VENT INSTALLATION
NOTE ** Delete the following paragraph if vents are installed in new membranes only.
A. Existing Membranes: Remove bitumen, gravel, debris, adhesives, etc., from area to receive vent.
B. Core through membrane and insulation to deck.
1. Do not disturb vapor barrier, if any.
2. Set flange in a full bed of mastic or adhesive.
3. Strip in vent flange in accordance with membrane manufacturer's instructions.
NOTE ** Delete the following paragraph if inapplicable.
4. Do not allow flame of torch used to apply modified bitumen to come in contact with flange.
NOTE ** Delete the following article if soil vent stack flashings are not required.
3.6 SOIL VENT STACK FLASHING INSTALLATION
A. Set flange in a full bed of mastic or adhesive.
1. Strip in stack flange in accordance with membrane manufacturer's instructions.
NOTE ** Delete the following paragraph if inapplicable.
2. Do not allow flame of torch used to apply modified bitumen to come in contact with flange.
3.7 CLEANING AND PROTECTION
A. Clean work area of debris associated with roofing specialties.
