Though pipe bursting using polyethylene plastic pipe would be considered a type of trenchless installation, it does not fall within the parameters of ASTM F1216 the standard for cured-in place pipe liners and would not be subject to the restrictions found in Section 715.3 of the 2018 UPC. Pipe bursting using polyethylene plastic pipe is a pipe replacement system using trenchless technology and must meet the requirements found in ASTM F714(Standard Specification for Polyethylene(PE)Plastic Pipe(DR-PR)Based on Outside Diameter. (see 2018 UPC, Table 701.2) ASTM F714 references ASTM F894 Standard Guide for Insertion of Flexible Polyethylene Pipe Into Existing Sewers as an installation guide.
1. No, the type 1 exhaust system would be compromised at the hood. The type II hood construction is less than the construction of the type I hood. Type 2 hood requirements do not require the following: as heavy gauge material, welded seams, grease filters, grease drip tray, fire extinguishing equipment and fuel shut off. 2. Yes, you could use type 2 cooking equipment under a type 1 hood, provided all other provisions of the 2024 Uniform Mechanical Code are met.
This installation would not be required to meet the requirements found in UPC Section 711.1 of the 2018 Uniform Plumbing Code. Exception (2) of that code section specifically exempts stacks receiving the discharge from less than three stories of plumbing fixtures from meeting the requirements for suds relief.
Yes. Ducts handling materials at temperatures in excess of 900 degrees shall be lined internally as per UMC section 506.10.4.1 and the duct shall also have 24 inch clearance to unprotected surfaces as per table 506.10.4 The 2018 Uniform Mechanical Code does not define the terms “Duct Liner” or “Duct Wrap”. Historically it is understood in the industry that “Duct Liner” is installed internally in the duct while applications on the outside would be lagging. See also SMACNA Accepted Industry Practices for Sheet Metal Lagging, 1st Edition
1. Per Table 701.2 of the 2018 Uniform Plumbing Code, all materials approved for building drains* are listed as “Underground Drain, Waste, Vent Pipe and Fittings. The table also lists the materials for building sewers** in the column marked “Building Sewer Pipe and Fittings”. 2. Consult Table 701.2 for the materials that would be acceptable for “Above Ground Drain, Waste, Vent Pipe and Fittings”. *Section 204.0 2018 UPC - Building Drain. That part of the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning 2 feet (610 mm) outside the building wall. **Section 204.0 2018 UPC - Building Sewer. That part of the horizontal piping of a drainage system that extends from the end of the building drain and that receives the discharge of the building drain and conveys it to a public sewer, private sewer, private sewage disposal system, or another point of disposal
No, it is not acceptable under the provisions of the 2018 Uniform Mechanical Code for a factory-built product to be listed exclusively by ASTM E2336. Section 507.4.4 of the 2018 Uniform Mechanical Code states that the factory-built grease duct protection system be UL 2221 and the enclosure through penetration system would need to meet ASTM E814 or UL 1479. These code sections were originally brought into the Uniform Mechanical Code in the August 2007 Report On Proposals. As noted in the substantiation submitted by Theodore C. Lemoff of NFPA: This proposal seeks to further clarify the application of UL 2221 and ASTM E2336 related to the test methods for testing grease duct enclosure protection materials and systems. This proposal makes the application of the UL 2221, Standard for Tests of Fire Resistive Grease Duct Enclosure Assemblies, and ASTM E 2336 Standard Test Methods for Fire Resistive Grease Duct Enclosure Systems consistent with recent changes adopted in the International Mechanical Code. As indicated by the proposal, these changes make UL 2221 applicable to factory-built grease duct enclosures, and ASTM E2336 applicable to field-applied grease duct enclosure systems. This proposal is also consistent with the manner in which these two Standards are employed by the affected industries. In addition, the requirement to fire stop around the exterior of the grease duct enclosure is also added for consistency with the model Codes. Code change proposals to the Uniform Mechanical Code are beyond the scope of work of the UMC Answer and Analysis committee. IAPMO utilizes an open consensus process accredited by the American National Standards Institute (ANSI) in its code development practice. Members and non-members alike—can submit proposed changes to the code. More information is available at http://www.iapmo.org/codes-standards-development/
No. Section 905.3 of the 2015 Uniform Plumbing Code states that “Vents less than 6 inches above the flood-level rim of the plumbing fixtures it serves shall be installed with approved draining fittings, material, and grade to drain.” Sanitary Tees are only considered drainage fittings when installed in the vertical position.*2015 UPC, 706.2 Horizontal to Vertical. Horizontal drainage lines, connecting with a vertical stack, shall enter through 45 degree (0.79 rad) wye branches, 60 degree (1.05 rad) wye branches, combination wye and one-eighth bend branches, sanitary tee or sanitary tapped tee branches, or other approved fittings of equivalent sweep. No fitting having more than one inlet at the same level shall be used unless such fitting is constructed so that the discharge from one inlet cannot readily enter any other inlet. Double sanitary tees shall be permitted to be used where the barrel of the fitting is not less than two pipe sizes larger than the largest inlet, (pipe sizes recognized for this purpose are 2 inches, 21⁄2 inches, 3 inches, 31⁄2 inches, 4 inches, 41⁄2 inches, 5 inches, 6 inches, etc.) (50 mm, 65 mm, 80 mm, 90 mm, 100 mm, 115 mm, 125 mm, 150 mm, etc.).
No. Any fastener that penetrates the the dryer duct that can catch lint is not allowed. Rivets would extend into the duct and that are capable of catching lint and reduce the efficiency of the exhaust system.
3” is the minimum common size for Table 1102.5 MATERIALS FOR SUBSOIL DRAIN PIPE and FITTINGS which list the applicable standards for pipe fittings material.
1. Yes, based on your description this would be one space and the process is bathroom exhaust. 2. No, there is no need to separate systems for this process as long as the exhaust system is adequately sized and all other code intent is met. In Table 403.7 locker rooms and public toilet rooms have different rates of exhaust. Locker room exhaust rate is 0.50 (cfm/sq.ft.) or locker room/dressing room the exhaust rate would be 0.25 (cfm/sq.ft). water closets are rated at 50/70 cfm per water closet, urinal, or both. The higher rate is for periods of heavy use otherwise the lower rate is permitted to be used. There is also a foot note 9 that states that toilet exhaust air that has been cleaned in accordance with the criteria of Class 1 shall be permitted to be recirculated. 3. No, they are the same Class 2 Air. These would both be classified as the same environmental exhaust, however the minimum exhaust rates of Table 403.7 must be maintained.
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