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- SECTION 07221
-
- ROOF INSULATION
-
- NOTE ** This section is based on the MI-T-R roof insulation
- system as manufactured by Mizell Bros. Co., located
- at 99 Armour Drive, NE; Atlanta, GA 30324.
- Telephone: 800-328-5401 or 404-875-9361.
- NOTE **
- NOTE ** The system employs flexible faced glass fiber
- insulation, with a variety of vapor retarders. The
- patented construction of the MI-T-R high
- performance insulation ensures high thermal
- efficiency in values from R-19 to R-40. Easily
- installed from the top side, the system is
- especially designed and manufactured to fit the
- spaces in a particular building. Installation
- requires no special tools or training. MI-T-R even
- keeps purlins or bar joists exposed for subsequent
- installation of electrical and mechanical systems -
- - without compromising the integrity of the vapor
- retarder.
- NOTE **
- NOTE ** SECTION 07221 - ROOF INSULATION, Copyright 1996,
- The Architect's Catalog, Inc.
-
- PART 1 GENERAL
-
- 1.1 SECTION INCLUDES
- NOTE ** Delete items below not required for project.
-
- A. Roof insulation and installation.
-
- B. Support system and installation.
-
- 1.2 RELATED SECTIONS
- NOTE ** Delete any sections below not relevant to this
- project; add others as required.
-
- A. Section 05120 - Structural Steel.
-
- B. Section 05210 - Steel Joists.
-
- C. Section 07213 - Batt Insulation.
-
- D. Section 07421 - Composite Metal Building Panels.
-
- E. Section 07611 - Custom Sheet Metal Roofing.
-
- F. Section 13121 - Pre-Engineered Buildings.
-
- 1.3 REFERENCES
- NOTE ** Delete references from the list below that are not
- actually required by the text of the edited
- section.
-
- A. ASTM C 236 - Standard Test Method for Steady-State
- Thermal Performance of Building Assemblies by Means of a
- Guarded Hot Box.
-
- B. ASTM C 518 - Standard Test Method for Steady-State Heat
- Flux Measurements and Thermal Transmission Properties by
- Means of the Heat Flow Meter Apparatus.
-
- C. ASTM E 84 - Standard Test Method for Surface Burning
- Characteristics of Building Materials.
-
- D. ASTM E 96 - Standard Test Methods for Water Vapor
- Transmission of Materials.
-
- E. FS HH-I-558B - Insulation, Blocks, Boards, Blankets,
- Felts, Sleeving, (Pipe and Tube Covering), and Pipe
- Fitting Covering, Thermal (Mineral Fiber, Industrial
- Type).
-
- 1.4 SUBMITTALS
-
- A. Submit under provisions of Section 01300.
-
- B. Product Data: Manufacturer's specifications and
- installation instructions.
-
- C. Shop Drawings: Include layout and location of structural
- steel roof framing members, details and locations of
- support system components, and specific data about
- insulation, including:
- 1. R value.
- 2. Approximate thickness.
- 3. Facing type.
- 4. Roll widths.
- 5. Lengths and locations.
-
- 1.5 REGULATORY REQUIREMENTS
- NOTE ** If this article is retained, select one of the two
- following paragraphs.
-
- A. Conform to requirements of local building code.
-
- B. Conform to requirements of ___________________.
-
- 1.6 DELIVERY, STORAGE, AND HANDLING
-
- A. Deliver materials in manufacturer's original, unopened
- packaging, with identifying tags or labels intact and
- legible.
-
- B. Coordinate scheduling for timely deliveries and prompt
- installation of materials.
-
- C. Store insulation and support system in a dry, protected
- area. If storage area is outdoors, store material off
- the ground and protected by a suitable waterproof cover.
- If installation is delayed for an extended period, open
- bag ends to allow for ventilation.
-
- 1.7 ENVIRONMENTAL REQUIREMENTS
-
- A. Handle and install insulation system only under
- conditions and temperatures that allow the facing
- material to remain workable.
-
- B. Coordinate insulation placement to assure that material
- can be covered promptly with roof panels. Do not leave
- insulation exposed overnight or to inclement weather.
-
- 1.8 WARRANTY
-
- A. Provide manufacturer's standard warranty, in accordance
- with requirements of Section 01740 - Warranties.
-
- PART 2 PRODUCTS
-
- 2.1 MANUFACTURER
-
- A. Products of this section are based on the MI-T-R roof
- insulation system as manufactured by Mizell Bros. Co.,
- located at 99 Armour Drive N.E., Atlanta Georgia 30324.
- Telephone: 404-875-9361.
- 1. Substitutions are not acceptable.
-
- 2.2 MATERIALS
-
- A. Insulation:
- 1. Comply with FS HH-I-558, Form B, Type 1, Class
- 6.NOTE ** Select only one of the following seven
- options to specify insulation resistance or
- thickness.
-
- 2. Provide thermal resistance (R) of 19 and a calculated
- transmittance (U Value) of 0.05, as determined by
- ASTM C 518.
- 3. Provide thermal resistance (R) of 26 and a
- calculated transmittance (U Value) of 0.04, as
- determined by ASTM C 518.NOTE ** ASTM C 236 Test
- Results for MI-T-R System
- NOTE **
- NOTE ** Standing Seam Roof Panels: 6 inch (R19)
- 8 inch (R26)
- NOTE ** Fasteners @ 24 in, w/thermal blocks .051
- .044
- NOTE ** Fasteners @ 24 in, w/o thermal blocks .059
- .055
- NOTE **
- NOTE ** Screw Down Roof Panels:
- NOTE ** *Fasteners @ 12 in, w/thermal blocks .053
- .043
- NOTE ** Fasteners @ 12 in, w/o thermal blocks .082
- .065
- NOTE **
- NOTE ** * Specify only as approved by building
- manufacturer.
-
- 4. Provide thermal resistance (R) of 30 and a calculated
- transmittance (U Value) of 0.03, as determined by
- ASTM C 518.
- 5. Provide thermal resistance (R) of 31 and a calculated
- transmittance (U Value) of 0.03, as determined by
- ASTM C 518.
- 6. Provide thermal resistance (R) of 36 and a calculated
- transmittance (U Value) of 0.027, as determined by
- ASTM C 518.
- 7. Provide thermal resistance (R) of 38 and a
- calculated transmittance (U Value) of 0.025, as
- determined by ASTM C 518.NOTE ** MI-T-R PROPERTIES
- NOTE **
- NOTE ** Thickness R Value U Value
- (Calculated)
- NOTE ** Winter Summer Non-Reflective
- Reflective
- NOTE ** Winter Summer Winter
- Summer
- NOTE ** 6" 20.9 19.03 .047 .050 .046
- .046
- NOTE ** 8" 27.48 25.03 .036 .039 .035
- .036
- NOTE ** 9" 31.87 29.06 .031 .034 .031
- .032
- NOTE ** 10" 32.96 30.03 .030 .033 .030
- .031
- NOTE ** 11" 38.42 35.09 .026 .028 .026
- .027
- NOTE ** 12" 39.52 36.06 .025 .027 .025
- .026
-
- 8. Thickness: Approximately __ inches, providing a
- composite U Value of ____, determined in accordance
- with ASTM C 236, using 8 inch Z purlins 60 inches on
- center, fasteners at ___ inches on center, [with]
- [without] foam blocks, 45 degrees F mean temperature
- corrected to 15 mph wind outside, heat flow up, non-
- reflective facing.
- NOTE ** Select one of the following twelve vapor barrier
- options and delete the others.
-
- 9. Vapor Barrier: Face one side of insulation with
- white vinyl reinforced polyester having a maximum
- perm rating of 0.02 as determined in accordance with
- ASTM E 96.
- 10. Vapor Barrier: Face one side of insulation with
- white vinyl scrim polyester, having a maximum perm
- rating of 0.02 as determined in accordance with ASTM
- E 96.
- 11. Vapor Barrier: Face one side of insulation with
- standard duty foil scrim kraft, having a maximum perm
- rating of 0.02 as determined in accordance with ASTM
- E 96.
- 12. Vapor Barrier: Face one side of insulation with UV
- stabilized white polypropylene/scrim/foil, having a
- maximum perm rating of 0.02 as determined in
- accordance with ASTM E 96.
- 13. Vapor Barrier: Face one side of insulation with
- heavy duty vinyl scrim foil, having a maximum perm
- rating of 0.02 as determined in accordance with ASTM
- E 96.
- 14. Vapor Barrier: Face one side of insulation with
- standard duty vinyl scrim foil, having a maximum perm
- rating of 0.02 as determined in accordance with ASTM
- E 96.
- 15. Vapor Barrier: Face one side of insulation with
- heavy duty polypropylene scrim kraft, having a
- maximum perm rating of 0.02 as determined in
- accordance with ASTM E 96.
- 16. Vapor Barrier: Face one side of insulation with
- standard duty polypropylene scrim kraft, having a
- maximum perm rating of 0.02 as determined in
- accordance with ASTM E 96.
- 17. Vapor Barrier: Face one side of insulation with
- light duty foil scrim kraft, having a maximum perm
- rating of 0.03 as determined in accordance with ASTM
- E 96.
- 18. Vapor Barrier: Face one side of insulation with
- white polypropylene scrim kraft, having a maximum
- perm rating of 0.090 as determined in accordance with
- ASTM E 96.
- 19. Vapor Barrier: Face one side of insulation with
- white vinyl reinforced vinyl, having a maximum perm
- rating of 0.90 as determined in accordance with ASTM
- E 96.
- 20. Vapor Barrier: Face one side of insulation with
- white vinyl, having a maximum perm rating of 1.0 as
- determined in accordance with ASTM E 96.
- 21. Surface Burning Characteristics: Provide assembly of
- facing, adhesive, and glass fiber blanket with
- composite flame spread rating of 25 or less and smoke
- developed of 50 or less, as determined in accordance
- with ASTM E 84.
-
- B. Support System
- 1. Hangers and Stirrups: Preformed 26 gage galvanized
- steel, 7/8 inches wide, with prepunched holes,
- factory-applied white coating, and pressure-sensitive
- foam tape factory-applied to inside face.
- a. Depth: 4 inches for R19 insulation.
- b. Depth: 6 inches for R26 insulation.
- c. Depth: 7 inches for R30 insulation.
- d. Depth: 7 inches for R31 insulation.
- e. Depth: 7 inches for R36 insulation.
- f. Depth: 7 inches for R38 insulation.
- 2. Channels: Preformed 26 gage galvanized steel, die
- formed and sheared to length, with slotted hole 1
- inch from each end for attachment to hangers and
- stirrups, and factory-applied white coating.
- 3. Fasteners: Manufacturer's standard nylon and
- electrostatically galvanized splice fasteners and
- washers.
-
- PART 3 EXECUTION
-
- 3.1 EXAMINATION
-
- A. Verify that roof framing system is complete and ready to
- receive insulation system. Do not proceed with
- installation until unsatisfactory conditions have been
- corrected.
-
- 3.2 INSTALLATION
-
- A. Install roof insulation in strict accordance with
- manufacturer's instructions and approved shop drawings.
- NOTE ** The following two paragraphs are optional and
- should be deleted if foam thermal blocks are not
- required for project. If foam blocks are required,
- select appropriate paragraph and delete the other.
-
- B. Install one inch thick thermal blocks of extruded
- polystyrene on top of glass fiber tab and between
- standing seam roof panel clips.
-
- C. Install one inch thick thermal blocks of extruded
- polystyrene in accordance with instructions provided by
- roof panel manufacturer.
-
- END OF SECTION
-