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| | SECTION 15062 |
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| | NON-PENETRATING ROOFTOP HANGERS AND SUPPORTS |
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| | ** NOTE TO SPECIFIER ** Miro Industries pipestands, pipe hangers, conduit hangers and struts, duct and equipment supports.
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This section based on products made by Miro Industries Inc., which is located at:
2700 South 900 West
Salt Lake City, Utah 84119
Tel: (800) 768-6978
Fax: (800) 440-7958
www.miroind.com
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Since 1982 MIRO Industries has been the leader in developing and providing superior roof-top pipe and conduit support products to protect the roof membrane without membrane penetration, dependably support pipe and conduit upon the roof, and reduce the cost and difficulty of installation. MIRO has been the innovative leader in helping the owner, professional, engineer, architect and supplier obtain superior rooftop products in a timely manner to satisfy the needs of the roof construction, mechanical installation and rooftop electrical installation industries. MIRO products are compatible with all rooftop materials and MIRO will guarantee its roof support products for up to the life of the roof membrane.
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| | PART 1 | GENERAL |
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| | 1.1 | SECTION INCLUDES |
| | ** NOTE TO SPECIFIER ** Delete paragraphs below that are not required. |
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| | | A. | Pipe supports. |
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| | | B. | Conduit supports. |
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| | | C. | Duct and equipment supports. |
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| | | D. | Accessories. |
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| | 1.2 | RELATED SECTIONS |
| | ** NOTE TO SPECIFIER ** Include only references to sections that might be expected to cover this type of work but which do not. |
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| | | A. | Section 07700 - Roof Specialties and Accessories. |
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| | | B. | Section 15060 - Hangers and Supports: Hangers and supports inside building. |
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| | | C. | Section 16070 - Hangers and Supports: Hangers and supports inside building. |
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| | 1.3 | SUBMITTALS |
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| | | A. | [ Product Data ]: Provide specification and data sheet for each type of support to be used. |
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| | | B. | Shop Drawings: Show installation layout, indicating product type and spacing. |
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| | | C. | Verification Samples: Actual samples of bases, each type of support, hanger, and fasteners. |
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| | 1.4 | QUALIFICATIONS |
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| | | A. | Manufacturer Qualifications: Company specializing in the manufacturing of pipe support systems. |
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| | | B. | Installer Qualifications: Company approved by manufacturer and with not less than 5 years of experience in installation of piping support systems. |
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| | | C. | Pre-Installation Meeting: After approval of submittals, but before beginning installation, conduct a meeting at project site attended by Architect, Contractor, installers of roofing, and mechanical and electrical piping to be installed in pipe support system. |
| | | | 1. | Purpose of meeting is to describe in detail the installation process and to establish agreement, coordination, and responsibilities. |
| | | | 2. | Prepare detailed meeting report and distribute copies to Architect and all attendees. |
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| | 1.5 | DELIVERY, STORAGE, AND HANDLING |
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| | | A. | Deliver materials to project site in manufacturer's original packaging, marked with manufacturer's name, product model names and catalog numbers, identification numbers and other related information. |
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| | | B. | Store materials under cover until needed. |
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| | PART 2 | PRODUCTS |
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| | 2.1 | MANUFACTURERS |
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| | | A. | Acceptable Manufacturer: MIRO Industries Inc., which is located at: 2700 S, 900 W. ; Salt Lake City, UT 84119; Toll Free Tel: 800-768-6978; Tel: 801-975-9993; Email: request info; Web: www.miroind.com |
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| | 2.2 | SUPPORTS AND HANGERS |
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| | | A. | Supports and Hangers - General: Provide with bases that rest on the roof membrane and that have: |
| | | | 1. | Gently rounded edges to prevent damage to roof membrane. |
| | | | 2. | 1 inch (25.4 mm) high raised edges. |
| | | | 3. | Drainage ports to prevent ponding. |
| | | | 4. | Carbon black additive in polycarbonate, when used, for UV stabilization. |
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| | | B. | Fixed Height Pipe Stands: Polycarbonate resin bases. |
| | | | 1. | 1-1/2-Inch Nominal Pipe: "U"-shaped cradle; 1-1/2 inch (38.1 mm) ID maximum pipe capacity, 1-9/10 inch (48.3 mm) OD maximum pipe capacity; 1-1/2 inch (38.1 mm) additional height per spacer, maximum 3 spacers; total load up to 80 lb (36 kg); 6 by 6 inch (152.4 by 152.4 mm) base (Model 1.5). |
| | | | 2. | 3-Inch Nominal Pipe: Self-lubricating polycarbonate roller supported by glass filled nylon roller rod in "U"-shaped cradle; 3 inch (76.2 mm) ID maximum pipe capacity, 3-7/8 inch (84. mm) OD maximum pipe capacity; 2 inch (50.8 mm) additional pipe clearance per spacer, maximum 3 spacers; total load up to 100 lb (45 kg); 7-1/2 by 7-1/2 inch (183.5 by 183.5 mm) base (Model 3-R). |
| | | | 3. | 4-Inch Nominal Pipe: Self-lubricating polycarbonate roller supported by glass filled nylon rod; 4 inch (101.6 mm) maximum pipe capacity, 5 inch (127 mm) OD maximum pipe capacity; total load up to 125 lb (57 kg); 7-1/2 by 7-1/2 inch (183.5 by 183.5 mm) base (Model 4-R). |
| | | | 4. | 5-Inch Nominal Pipe: Self-lubricating polycarbonate roller supported by stainless steel rod; 5 inch (127 mm) ID maximum pipe capacity, 6 inch (152.4 mm) OD maximum pipe capacity; total load up to 150 lb ( 68 kg); 9 by 15-1/8 inch (228.6 by 384.1 mm) base (Model 5-R). |
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| | | C. | Adjustable Height Pipe Stands: Self-lubricating polycarbonate roller mounted on stainless steel or polycarbonate roller rod supported by two stainless steel threaded rods, with height adjustment up to 6-1/2 inches (165 mm) above roof surface. |
| | | | 1. | 3-Inch Nominal Pipe: 3 inch (76.2 mm) ID maximum pipe capacity, 3-7/8 inch (84. mm) OD maximum pipe capacity; polycarbonate resin base; glass filled nylon threaded rod for 5 inch (127 mm) height adjustment; total load up to 100 lb (45 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 3-RAH). |
| | | | 2. | 3-Inch Nominal Pipe: 3 inch (76.2 mm) ID maximum pipe capacity, 3-7/8 inch (84. mm) OD maximum pipe capacity; polycarbonate resin base; stainless steel threaded rod for 6-1/2 inch (165 mm) height adjustment; total load up to 100 lb (45 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 3-RAH). |
| | | | 3. | 4-Inch Nominal Pipe: 4 inch (101.6 mm) ID maximum pipe capacity, 5 inch (127 mm) OD maximum pipe capacity. |
| | ** NOTE TO SPECIFIER ** Delete all but one of the following three base materials. |
| | | | | a. | Base Material: Polycarbonate resin; total load up to 125 lb (57 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 4-RAH). |
| | | | | b. | Base Material: Stainless steel; total load up to 150 lb (68 kg); 12 by 16 inch (304.8 by 406.4 mm) base (Model 4-RAH SS). |
| | | | | c. | Base Material: Hot dipped galvanized steel; total load up to 150 lb (68 kg); 12 by 16 inch (304.8 by 406.4 mm) base (Model 4-RAH HDG). |
| | | | 4. | 5-Inch Nominal Pipe: 5 inch (127 mm) ID maximum pipe capacity, 6 inch (152.4 mm) OD maximum pipe capacity; polycarbonate resin base; total load up to 150 lb; 9 by 15-1/8 inch (228.6 by 384.1 mm) base (Model 5-RAH). |
| | | | 5. | 6-Inch Nominal Pipe: 6 inch (152.4 mm) ID maximum pipe capacity, 7 inch (177.8 mm) OD maximum pipe capacity; total load up to 150 lb (68 kg). |
| | ** NOTE TO SPECIFIER ** Delete one of the following two base materials. |
| | | | | a. | Base Material: Stainless steel; 12 by 16 inch (304.8 by 406.4 mm) base (Model 6-RAH SS). |
| | | | | b. | Base Material: Hot dipped galvanized steel; 12 by 16 inch (304.8 by 406.4 mm) base (Model 6-RAH HDG). |
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| | | D. | Pipe Hangers: H-frame assembly with horizontal channel strut supporting threaded rod and hanger; see drawings for specific hanger types and sizes required. |
| | | | 1. | 3-Inch Nominal Pipe: Single polycarbonate resin base, stainless steel or hot dipped galvanized steel vertical rods, cross strut and hanger rod; polycarbonate or steel roller, clevis hanger or band hanger; 2-1/2 inch (63.5 mm) ID maximum pipe capacity, 3-1/2 inch (88.9 mm) OD maximum pipe capacity; total load up to 125 lb (57 kg); 9 by 15-1/8 inch (228.6 by 384.1 mm) base (Model 2.5-SB-H). |
| | | | 2. | 4-Inch Nominal Pipe: Dual polycarbonate resin bases, stainless steel or hot dipped galvanized rigid frame and hanger rod; polycarbonate or steel roller or clevis hanger; 4 inch (101.6 mm) ID maximum pipe capacity, 5 inch (127 mm) OD maximum pipe capacity; total load up to 220 lb (99.7 kg), 110 lb (49.8 kg) on each base; 12 by 16 inch (304.8 by 406.4 mm) bases (Model 4-H). |
| | | | 3. | 5-Inch Nominal Pipe: Single stainless steel or hot dipped galvanized steel base, vertical rods, cross strut and hanger rod; polycarbonate or steel roller, clevis hanger or band hanger; 5 inch (127 mm) ID maximum pipe capacity, 6 inch (152.4 mm) OD maximum pipe capacity; total load up to 170 lb (77 kg); 12 by 16 inch (304.8 by 406.4 mm) base (Model 5-SB-H). |
| | | | 4. | 6-Inch Nominal Pipe: Dual stainless steel or hot dipped galvanized steel bases, rigid strut frame and hanger rod; polycarbonate or steel roller, clevis hanger or band hanger; 6 inch (152.4 mm) ID maximum pipe capacity, 7-1/2 inch (190.5 mm) OD maximum pipe capacity; total load up to 310 lb (140 kg), 155 lb (70.2 kg) on each base; 8 by 14 inch (203.2 by 355.6 mm) bases (Model 6-H). |
| | | | 5. | 8-Inch Nominal Pipe: Dual stainless steel or hot dipped galvanized steel bases, rigid frame and hanger rod; steel roller, band or clevis hanger; 8 inch (203.2 mm) ID maximum pipe capacity, 9 inch (228.6 mm) OD maximum pipe capacity; total load up to 700 lb (317.1 kg), 350 lb (158.6 kg) on each base; 12 by 16 inch (304.8 by 406.4 mm) bases (Model 8-H). |
| | | | 6. | 16-Inch Nominal Pipe: Dual bases, rigid frame and hanger rod, 11 gage hot dipped galvanized steel; hot dipped galvanized clevis hanger; 16 inch (406.4 mm) ID maximum pipe capacity, 18 inch (457.2 mm) OD maximum pipe capacity; total load up to 1600 lb (724.8 kg), 800 lb (362.4 kg) on each base; 20 by 20 inch (508 by 508 mm) bases (Model 16-H). |
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| | | E. | Conduit Hangers: Hot dipped galvanized channel strut to which conduit or pipe can be attached with clamps: |
| | | | 1. | For 2-1/2 inch (63.5 mm) Clearance Above Roof: Fixed height; 2-1/2 inch (63.5 mm) ID maximum pipe capacity, 3 inch (76.2 mm) OD maximum pipe capacity; total load up to 100 lb (45.3 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 2.5-Conduit Support). |
| | | | 2. | For 4 inch (101.6 mm) Clearance Above Roof: Fixed height; 2-1/2 inch (63.5 mm) ID maximum pipe capacity, 3 inch (76.2 mm) OD maximum pipe capacity; total load up to 100 lb (45.3 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 2.5-Conduit Support). |
| | | | 3. | For 5 inch (127 mm) Clearance Above Roof: Adjustable height type with two glass filled nylon threaded rods; 2-1/2 inch (63.5 mm) ID maximum pipe capacity, 3 inch (76.2 mm) OD maximum pipe capacity; total load up to 100 lb (45.3 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 2.5-Conduit Support-AH). |
| | | | 4. | For 6-1/2 inch (165 mm) Clearance Above Roof: Adjustable height type with two stainless steel threaded rods; 2-1/2 inch (63.5 mm) ID maximum pipe capacity, 3 inch (76.2 mm) OD maximum pipe capacity; total load up to 100 lb (45.3 kg); 7-1/2 by 10 inch (183.5 by 254 mm) base (Model 2.5-Conduit Support-AH). |
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| | | F. | Strut-Type Supports: Single base with two threaded rods supporting hot dipped galvanized horizontal channel strut. |
| | | | 1. | Size: 12 inch (304.8 mm) strut 1-5/8 by 13/16 inch (41.3 x 28.6 mm), pipe clearance variable up to 7 inch (177.8 mm) (Model 12 Base Strut). |
| | | | 2. | Size: 16 inch (406.4 mm) strut 1-5/8 by 13/16 inch (41.3 x 28.6 mm), pipe clearance variable up to 7 inch (177.8 mm) (Model 16 Base Strut). |
| | ** NOTE TO SPECIFIER ** Delete all but one of the following three base materials. |
| | | | 3. | Base: Polycarbonate resin; total load up to 125 lb (56.6 kg); 7-1/2 by 10 inch (183.5 mm by 254 mm) or 9 by 15-1/8 inch (228.6 by 384.1 mm) base. |
| | | | 4. | Base: Stainless steel; total load up to 150 lb (68 kg); 12 by 16 inch (304.8 by 406.4 mm) base. |
| | | | 5. | Base: Hot dipped galvanized steel; total load up to 150 lb (68 kg); 12 by 16 inch (304.8 by 406.4 mm) base. |
| | ** NOTE TO SPECIFIER ** Duct supports are custom fabricated to size of duct, weight of duct per foot, and height above roof. Contact MIRO for special order - 800-768-6978. |
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| | | G. | Duct Supports: Dual bases supporting "H" frame strut assembly to support duct. |
| | | | 1. | Size as required; see drawings. |
| | ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs. |
| | | | 2. | Base and Strut Material: Hot dipped galvanized steel. |
| | | | 3. | Stainless steel bases and hot dipped galvanized steel struts. |
| | ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs. |
| | | | 4. | Base Size: 8 by 14 inches (203.2 by 355.6 mm) (Model 6DS). |
| | | | 5. | Base Size: 12 by 16 inches (304.8 by 406.4 mm) (Model 8DS). |
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| | | H. | Mechanical Equipment Supports: Bases supporting; hot-dip galvanized steel vertical struts with threaded rod height adjustment, hot-dip galvanized corner and side support brackets. |
| | ** NOTE TO SPECIFIER ** The following paragraph is optional. |
| | | | 1. | With cross bracing. |
| | ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs. |
| | | | 2. | Base Material: Hot dipped galvanized steel; total load up to 2 lb (0.9 kg) per square inch. |
| | | | 3. | Base Material: Stainless steel; total load up to 2 lb (0.9 kg) per square inch. |
| | | | 4. | Base Size: 12 by 16 inches (304.8 by 406.4 mm) (Model 8DS). |
| | ** NOTE TO SPECIFIER ** The following supports must be designed by the structural engineer as part of the structure. These would be used only if non-penetrating supports would not be acceptable for some reason. The manufacturer recommends that most roof top supporting devices be installed unattached to allow supporting device to move upon the roof or support pipe by roller devices or clevis hangers devices to allow roof top expansion and contraction of piping or other supported systems as the temperatures fluctuate each day. |
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| | | I. | Fixed Anchor Supports: Hot dip galvanized Schedule 40 pipe with metal plates, top and bottom, and pipe clamp at top; bottom plate surface unfinished for welding into or attaching to roof structure beneath roofing membrane. Location, size, and configuration as indicated on drawings. |
| | ** NOTE TO SPECIFIER ** Paragraph below is a custom designed unit. Contact manufacturer for design of units. Weighted bases range from 30 to 100 lbs. |
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| | | J. | Floating Anchor Supports: Weighted bases (hot dip galvanized or stainless steel), strut system, and pipe clamps, hot dipped galvanized after fabrication. Designed to rest upon roof, to not penetrate roof membrane, and protect roof membrane. Size and configuration as indicated on drawings; total load up to 2 lb (0.9 kg) per square inch of base. |
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| | 2.3 | ACCESSORIES |
| | ** NOTE TO SPECIFIER ** The following pad is for simple protection of the roofing membrane, not for structural load dispersion. |
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| | | A. | Support Pads: 15-3/4 by 19-3/4 inch (400 x 501.7 mm) square, 1/8 inch (3 mm) thick, flexible PVC with carbon black additive for UV stabilization. |
| | ** NOTE TO SPECIFIER ** The following deck plates are intended to spread the structural load, especially over compressible roof insulation. |
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| | | B. | Deck Plates: Square metal deck plate with curved up edges, to spread load and protect roof membrane. |
| | ** NOTE TO SPECIFIER ** Delete all but one of the following three paragraphs. |
| | | | 1. | Thickness: 16 gauge (1.5 mm). |
| | | | 2. | Thickness: 18 gauge (1.2 mm). |
| | | | 3. | Thickness: 20 gauge (0.9 mm). |
| | ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs. |
| | | | 4. | Material: Stainless steel. |
| | | | 5. | Material: Hot dip galvanized. |
| | ** NOTE TO SPECIFIER ** Delete all but one of the following four paragraphs. |
| | | | 6. | Size: 12 x 12 inch (304.8 x 304.8 mm) square; total load up to 200 lb (90.6 kg) (Model DP-12). |
| | | | 7. | Size: 18 x 18 inch (457.2 x 457.2 mm) square; total load up to 400 lb (181.2 kg) (Model DP-18). |
| | | | 8. | Size: 24 x 24 inch (609.6 x 609.6 mm) square; total load up to 800 lb (361.4 kg) (Model DP-24). |
| | | | 9. | Sizes: As indicated on drawings. |
| | ** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; edit to describe locations required. |
| | | | 10. | Application: Provide under each support, hanger, and duct base unit. |
| | | | 11. | Application: __________. |
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| | | C. | Rollers: |
| | | | 1. | Roller 3: 3 inch (76.2 mm) sturdy polycarbonate roller, shaft 5/8 inches (15.9 mm), end diameter 1-7/8 inches (47.6 mm). Roller surface has a 3 inch (76.2 mm) radius arch. Maximum load capacity may not exceed 150 lbs. (68 kg). |
| | | | 2. | Roller 5: 5 inch (127 mm) sturdy polycarbonate roller, shaft 5/8 inches (15.9 mm), end diameter 2-7/16 inches (61.9 mm) Roller surface has a 5 inch (127 mm) radius arch. Maximum load capacity may not exceed 150 lbs. (68 kg). |
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| | PART 3 | EXECUTION |
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| | 3.1 | INSTALLATION |
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| | | A. | Determine that roof structure, roof insulation, and roof membrane are structurally adequate to support weight of pipe, duct, conduit, and supports and hangers. |
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| | | B. | Install supports and hangers in accordance with manufacturer's recommendations. |
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| | | C. | Install supports at maximum spacing of 10 feet (3 m) unless closer spacing is required due to weight of pipe or conduit contents or greater spacing is specifically allowed by manufacturer; space and adjust to support an equal amount of weight; do not exceed manufacturer's recommended load limits. |
| | ** NOTE TO SPECIFIER ** Delete the following paragraph if there is no aggregate-surfaced roofing on the project. |
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| | | D. | Remove roofing aggregate from area 2 inches (50.8 mm) larger than support base; comply with roofing manufacturer's requirements to maintain roofing warranty. |
| | ** NOTE TO SPECIFIER ** The following paragraph may not be required if the roofing membrane is durable enough. Delete if not required. |
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| | | E. | Install an additional sheet of roofing material, support pad, or deck plate beneath each support base. |
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| | | F. | Support Pads: |
| | | | 1. | Remove rock, aggregate, dirt and excess dust from area to be covered by pad. |
| | | | 2. | Apply support pad on cleaned area. |
| | | | 3. | Center bases on top of support pads. |
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| | | G. | Deck Plates: |
| | | | 1. | Locate centered under bases of pipe supports and hangers. |
| | | | 2. | Remove rock, aggregate, dirt and excess dust from an area 2 inches (50.8 mm) larger than deck plate. |
| | | | 3. | Install with curved edges up. |
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| | | H. | Pipe Supports: Center beneath pipe so that pipe is located squarely over and through cradle or hanger. Set pipe in support without dropping or causing undue impact. |
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| | | I. | Adjustable Supports: Adjust height of each support to achieve proper height and level before installing supported item. |
| | | | 1. | Level rollers or struts before installing pipe. |
| | | | 2. | Make final height adjustments to provide even distribution of load on all supports. |
| | ** NOTE TO SPECIFIER ** Delete the following paragraph if no fixed anchor supports are specified in . |
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| | | J. | Fixed Anchor Supports: Prior to installation of roof decking, insulation and roof membrane attach support to roof structure as indicated on drawings. |
| | | | 1. | After installation of roof decking, insulation and membrane, install pipe or roof top mechanical supports used in connection with fixed anchor supports. |
| | | | 2. | Install piping or mechanical units on each support. |
| | ** NOTE TO SPECIFIER ** The following paragraph is not recommended by the manufacturer. Edit to change to printable text if desired. Note: the applicable code may require this.
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Anchorage to Roof: Attach support bases to the roof by appropriate and compatible rooftop fasteners, through holes provided or drilled in the bottom of the base. After attachment, the seal attachment holes using material approved by roofing membrane manufacturer. |
| | ** NOTE TO SPECIFIER ** The following paragraph is not recommended by the manufacturer. Edit to change to printable text if desired. Note: the applicable code may require this.
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Pipestands Without Enclosing Hangers: Where pipe is not secured on support with an enclosing hanger, secure pipe to pipestand using pipe strap provided by manufacturer. Allow sufficient room between pipe and strap to allow free movement of pipe without binding. |
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| | 3.2 | FIELD QUALITY CONTROL |
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| | | A. | When requested by Architect, provide a factory-trained representative of manufacturer to visit site while work is in progress to assure that installation complies with design requirements and manufacturer's installation requirements. |
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| | | B. | After system startup, correct any deficiencies that arise, including but not limited to, improper location or position, improper seating or level on the roof, lack of roof pads or deck plates, inadequate operation, and as directed by Architect. |
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| | END OF SECTION |