������������������������ SECTION 07710

 

��������������� PREFABRICATED ROOF SPECIALTIES

This section is based on products manufactured by Marathon Roofing Products Inc., at the following address:

���� 367 Nagel Drive

���� Buffalo, New York 14225-4732

���� PHONE:� 716-685-3340 or 800-828-8424;� FAX:� 716-685-1108

 

Marathon manufactures a complete line of roof drains and breather vents for new roofing, reroofing, and retrofit applications.� Drain materials include copper, PVC, ABS, 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.

 

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.

 

PART 1� GENERAL

 

1.1 SECTION INCLUDES

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

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/Plastomeric Sheet Roofing.

 

��� D.� Section 07535 - Modified Bitumen Sheet Roofing.

 

��� E.� Section 07560 - Roof Maintenance and Repairs.

 

��� F.� Section 15410 - Plumbing 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, New York 14225-4732.� Telephone 716-685-3340 (800-828-8424).� FAX 716-685-1108.

������� 1.� Substitutions will not be acceptable.

Delete the following article if drains for new construction are not required.

2.2 FLANGE/PIPE DRAINS

 

��� A.� Marathon Century Premium Series Roof Drains:

Select straight or funnel profile, as desired.

 

Straight profile with clamping ring and extension is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.

 

For EPDM or CSPE membranes, straight profile is recommended with clamping ring (or with clamping ring and extension.�

 

Delete profiles not required.

������� 1.� Straight profile, solid copper construction.

������� 2.� Straight profile, solid copper construction, with clamping ring.

������� 3.� Straight profile, solid copper construction, with clamping ring and extension.

������� 4.� Funnel profile, solid copper construction.

Select uncoated flange for EPDM and CSPE membranes, primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPA membranes.� Delete two of the three coating options, below.

������� 5.� 18-inch diameter flange, 20 oz. copper.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

����������� c.� PVC-coated, for heat welded membrane attachment.

������� 6.� Perforated copper gravel ring.

HDPE strainer is standard, aluminum is optional.� Delete one of the two materials, below.

������� 7.� Strainer:� 8-inch diameter.

����������� a.� High density polyethylene.

����������� b.� Cast aluminum alloy.

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.

������� 8.� Connections:� Pipe size as indicated on the drawings.

����������� a.� Plain, 9-inch depth.

����������� b.� Plain, 15-inch 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.

 

��� B.� Marathon Century Series Roof Drains:

������� 1.� Straight profile, solid copper construction.

Select primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPA membranes.� (For EPDM and CSPE membranes, see Century Premium Series drains, below.)� Delete one of the two coating options, below.

������� 2.� 14-inch diameter flange, 16 oz. copper.

����������� a.� Primed for adhesion to asphaltic membranes.

����������� b.� PVC-coated, for heat welded membrane attachment.

������� 3.� Perforated copper gravel ring.

HDPE strainer is standard, aluminum is optional.� Delete one of the two materials, below.

������� 4.� Strainer:� 5-inch diameter.

����������� a.� High density polyethylene.

����������� b.� Cast aluminum alloy.

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 depth.

����������� b.� Plain, 15-inch 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.

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 flange/expansion-sleeve or flange/mechanical-seal drains, below.

2.3 FLANGE/INSERT RETROFIT DRAINS

 

��� A.� Marathon Diamond (75) Series Roof Drains:

Select straight or funnel profile, as desired.� Drain styles older than 1950 typically accept only straight profile.

 

Straight profile with clamping ring and extension is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.

 

For EPDM or CSPE membranes, straight profile is recommended with clamping ring (or with clamping ring and extension.�

 

Delete profiles not required.

������� 1.� Straight profile, solid copper construction.� Flange:� 14-inch diameter flange, 16 oz. copper for drain sizes 2 through 4 inch;� 18-inch diameter flange, 20 oz. copper for 5 and 6-inch drain sizes.

������� 2.� Straight profile, solid copper construction, with clamping ring.� Flange:� 14-inch diameter flange, 16 oz. copper for drain sizes 2 through 4 inch;� 18-inch diameter flange, 20 oz. copper for 5 and 6-inch drain sizes.

������� 3.� Straight profile, solid copper construction, with clamping ring and extension.� Flange:� 14-inch diameter flange, 16 oz. copper for drain sizes 2 through 4 inch;� 18-inch diameter flange, 20 oz. copper for 5 and 6-inch drain sizes.

������� 4.� Funnel profile, solid copper construction.� Flange:� 18-inch diameter flange, 20 oz. copper.

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPA 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.

������� 6.� Perforated copper gravel ring.

������� 7.� Strainer:�

Delete inapplicable strainer sizes, below.

����������� a.� 5-inch diameter for straight profile drain sizes 2 through 4 inch.

����������� b.� 8-inch diameter for straight profile drain sizes 5 and 6-inch.

����������� c.� 8-inch diameter for funnel profile drains.

HDPE strainer is standard, aluminum is optional.� Delete one of the two materials, below.

����������� d.� High density polyethylene.

����������� e.� Cast aluminum alloy.

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 depth.

����������� b.� Plain, 15-inch depth.

����������� c.� Plain, 12-inch depth.

����������� d.� Plain, 18-inch depth.

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.

2.4 FLANGE/EXPANSION-SLEEVE RETROFIT DRAINS

 

��� A.� Marathon Proliner Series.

Select straight or funnel profile, as desired.� Drain styles older than 1950 typically accept only straight profile.

 

Straight profile with clamping ring and extension is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.

 

For EPDM or CSPE membranes, straight profile is recommended with clamping ring (or with clamping ring and extension.�

 

Delete profiles not required.

��� ��� 1.� Straight profile.

������� 2.� Straight profile, with clamping ring.�

������� 3.� Straight profile, with clamping ring and extension.

������� 4.� Funnel profile.�

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPA membranes.� Delete two of the three coating options, below.

������� 5.� Flange:� 18-inch diameter flange, 20 oz. copper.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

����������� c.� PVC-coated, for heat welded membrane attachment.

������� 6.� Perforated copper gravel ring.

HDPE strainer is standard, aluminum is optional.� Delete one of the two materials, below.

������� 7.� Strainer:� 8-inch diameter.

����������� a.� High density polyethylene.

����������� b.� Cast aluminum alloy.

Outlets are available to retrofit standard 3, 4, 5, and 6-inch sizes and other non-standard sizes.

������� 8.� Outlet:� Malleable metal alloy.� Pipe size as indicated on the drawings;� diameter sized to slip inside of existing drain piping, with 1/4-inch maximum difference between existing pipe I.D. and outlet O.D.

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 ProSeal Series Roof Drains:

Select straight or funnel profile, as desired.� Drain styles older than 1950 typically accept only straight profile.

 

Straight profile with clamping ring and extension is used when water cut off mastic is required and a greater clamping surface is needed by membrane manufacturer.

 

For EPDM or CSPE membranes, straight profile is recommended with clamping ring (or with clamping ring and extension.�

 

Delete profiles not required.

������� 1.� Straight profile.

������� 2.� Straight profile,� with clamping ring.�

������� 3.� Straight profile, with clamping ring and extension.

������� 4.� Funnel profile.�

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes, PVC-coated flange for PVC and CPA membranes.� Delete two of the three coating options, below.

������� 5.� Flange:� 18-inch diameter flange, 20 oz. copper.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

����������� c.� PVC-coated, for heat welded membrane attachment.

������� 6.� Perforated copper gravel ring.

HDPE strainer is standard, aluminum is optional.� Delete one of the two materials, below.

������� 7.� Strainer:� 8-inch diameter.

����������� a.� High density polyethylene.

����������� b.� Cast aluminum alloy.

Outlets are available to retrofit standard 3, 4, 5, and 6-inch sizes.

������� 8.� 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 maximum difference between existing pipe I.D. and outlet O.D.

Delete the following article if mechanical drains are not required.�

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

Select either PVC, ABS, or epoxy-coated cast iron drain body.� Delete inapplicable paragraphs, below.

��� A.� Marathon Utility Large Roof Drain:� Injection molded PVC drain body with solvent-weld style outlet.

 

��� B.� Marathon 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:

Select either polyethylene or metal strainer, below.� Delete any other construction features that are not required.

������� 1.� Strainer:� Red 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.

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.

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.

Select either angled grate (standard) or flat grate (optional).

������� 3.� Angled grate.

������� 4.� Flat grate.

Select either red epoxy paint finish (standard) or nickel bronze finish.

������� 5.� Red epoxy finish.

������� 6.� Nickel bronze finish.

Delete the following article if roof vents are not required.

2.8 ROOF VENTS AND BREATHERS

Select type of vents desired from paragraphs below.� Delete those that are not required.

 

Vents are designed to assist in relieving pressure created by moisture in lightweight insulating concrete materials, and for venting conventional insulation.

��� A.� Marathon Aluminum Insulvent:

������� 1.� Heavy gage spun aluminum.

������� 2.� Secured cap to prevent entry of wind-blown rain or snow.

������� 3.� 4-inch diameter base opening.

������� 4.� 10-3/4-inch diameter flange.

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes.� Delete one of the two coating options, below.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

������� 5.� 8-1/2 inches overall height.

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.

 

��� B.� Marathon Aluminum LC Vent (Large Capacity):

������� 1.� Heavy gage spun aluminum.

������� 2.� Secured cap to prevent entry of wind-blown rain or snow.

������� 3.� 8-inch diameter base opening.

������� 4.� 13-inch diameter flange.

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes.� Delete one of the two coating options, below.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

������� 5.� 6-3/4 inches overall height.

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.

 

��� C.� Marathon Aluminum SC Vent (Small Capacity):

������� 1.� Heavy gage spun aluminum.

������� 2.� Secured cap to resist vandals.

������� 3.� 2-7/8-inch diameter base opening.

������� 4.� 6-inch diameter flange.

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes.� Delete one of the two coating options, below.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

������� 5.� 4-1/4 inches overall height.

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.

 

��� D.� Marathon Ex-Flow Insulation Vent:

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 diameter base opening.

������� 5.� 10-1/2-inch diameter flange.

������� 6.� 8 inches overall height.

������� 7.� One-way valve to prevent moisture re-entry.

 

��� E.� Marathon M-105 Insulation Breather:

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 diameter base opening.

������� 5.� 10-1/2-inch diameter flange.

������� 6.� 8 inches overall height.

������� 7.� Two-way design to allow both exhaust and convective air movement to create equalized pressure.

 

��� F.� Marathon XL-Breather:

HDPE construction, below, is compatible with bituminous membranes.

������� 1.� High density polyethylene construction.

������� 2.� Secured cap to prevent entry of wind-blown rain or snow.

������� 3.� 5-1/4-inch diameter base opening.

������� 4.� 6-1/4-inch diameter base opening.

������� 5.� 15-inch diameter flange.

������� 6.� 12 inches overall height.

������� 7.� Two-way design to allow both exhaust and convective air movement to create equalized pressure.

 

��� G.� Marathon Standard Breather:

HDPE construction, below, is compatible with bituminous membranes.� For PVC and urethane membranes, select vents with PVC construction, above.

������� 1.� High density polyethylene construction.

������� 2.� Secured cap to prevent entry of wind-blown rain or snow.

������� 3.� 2-1/4-inch diameter base opening.

������� 4.� 10-inch diameter flange.

������� 5.� 7 inches overall height.

������� 6.� Two-way design to allow both exhaust and convective air movement to create equalized pressure.

Retain optional core, below, if desired.

������� 7.� Fluted plastic core to allow ventilation of underside of insulation.

 

��� H.� Marathon Copper Breather:

������� 1.� Solid copper construction with permanently soldered connections.

������� 2.� Cap to prevent entry of wind-blown rain or snow.

������� 3.� 1-3/4-inch diameter base opening.

Select uncoated flange for EPDM membranes, primed flange for BUR and mod. bit. membranes.� Delete one of the two coating options, below.

������� 4.� 11-inch diameter flange.

����������� a.� Uncoated.

����������� b.� Primed for adhesion to asphaltic membranes.

������� 5.� 8 inches overall height.

������� 6.� Two-way design to allow both exhaust and convective air movement to create equalized pressure.

Retain optional core, below, if desired.

������� 7.� Fluted plastic core to allow ventilation of underside of insulation.

 

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 diameter base opening; 4" DWV pipe capacity with hub.

������� 4.� 15-1/4-inch diameter flange.

������� 5.� 15-1/4 inches 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.

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.

 

��� 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 pressure-preservative-treated plywood, rigid high compressive strength insulation, or by filling bowl with spray polyurethane foam.

 

3.3 ROOF DRAIN INSTALLATION

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.�

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 hand wrench.

 

3.4 ROOF DRAIN OUTLET CONNECTIONS

Retain connection instructions, below, applicable to roof drains specified in Part 2.� Delete inapplicable paragraphs.

 

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:�

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.� 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 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 distance between expansions.� Use Proliner Expander Tool Kit with properly sized accessories.� Use 12 half-turns for 3-inch and 4-inch diameter drains, and 9 half-turns for 5-inch and 6-inch 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:�

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.� 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.

Delete the following article if roof vents are not required.

3.5 ROOF VENT INSTALLATION

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.�

Delete the following paragraph if inapplicable.

������� 4.� Do not allow flame of torch used to apply modified bitumen to come in contact with flange.

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.�

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.�

 

��� B.� Protect finished work under provision of Section 01500.

 

 

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