You must log in or register to reply here. 3 0 obj You must log in or register to reply here. You have "Young-timers" ? Well since you are under the calif code, that is what everyone has to play by. Without going into detail, there are some exceptions in the code that allows for the mezzanine to be larger given certain factors such as the buildings type of construction and whether the building is equipped with an automatic sprinkler system and emergency communication system. Three replies in a row isn`t this a record ? Please try again later. woodworking shop with a new boiler (ignition source) needs protection (separation/sprinkling) then that is what you will have to do. Thats the basic equation from the 2010 version of the ASHRAE 62.2 standard. (A little reminder: Loads and capacity are different things. At the highest level are the model codes. The area of the equipment platform shall not be included in determining the fire area in accordance with Section 903. Equipment platforms in buildings shall not be considered as a portion of the floor below. Catwalks shall be provided for all equipment that cannot be maintained from floor level.Where maintenance requires the lifting of heavy parts [45 kg (100 pounds) or more], hoists and hatchways shall be installed. Periodic tests of the mechanical ventilating system shall be performed in accordance with manufacturer's specifications and as required by the, The discharge of the air shall be to the outdoors in accordance with, 1105.6.1.1 Indoor Exhaust Opening Location, Indoor mechanical exhaust intake openings shall be located where, During occupied conditions, the mechanical, [F] 1105.8 Emergency Pressure Control System, Section 1105 Refrigeration, Machinery Room, General Requirements, 1105.1 Refrigeration, Design and Construction, 1105 Machinery Room, General Requirements, Not less than 0.5 cfm per square foot (0.0025 m. A volume required to limit the room temperature rise to 18F (10C) taking into account the ambient heating effect of all machinery in the room. Thats Manual J from the Air Conditioning Contractors of America (ACCA) for calculating the heating and cooling loads of the house and Manual S, also from ACCA, for determining the capacity of the equipment needed to meet those loads. 0000004236 00000 n (That last one is a big no-no that can easily contaminate the indoor air with pollutants from the garage or carbon monoxide created by backdrafting a water heater.). Even with dust controls, there is still superfine particles in the air. (N1103.6.1), If the air handler is the main fan for the whole-house ventilation system, the blower has to be powered by and electronically-commutated motor. Summary of Mezzanine Code Requirements. For a better experience, please enable JavaScript in your browser before proceeding. Access to roof-mounted equipment shall be by stairs, not by ships ladders. These elevated floors are known as mezzanines and equipment platforms. The fire-resistance-rated room separation is not required, provided that the only openings in or penetrations of the shaft enclosure to the interior of the building occur at the bottom. You have many options here, but worst case, RJJ nailed it, just plan on separating and providing outside combustion air. Air-handling units require a minimum clearance of 750 mm (2 feet 6 inches) on all sides, except the side where filters and coils are accessed. ", Per diem localities with county definitions shall include"all locations within, or entirely surrounded by, the corporate limits of the key city as well as the boundaries of the listed counties, including independent entities located within the boundaries of the key city and the listed counties (unless otherwise listed separately).". Now its in the building codes. A mezzanine shall be open to the room in which it is located, except for walls not more than 42 inches in height. Catwalks shall be provided for all equipment that cannot be maintained from floor level.Where maintenance requires the lifting of heavy parts [45 kg (100 pounds) or more], hoists and hatchways shall be installed. 1006.2.2.1 Boiler, incinerator and furnace rooms. First, the IRC and IECC have to be adopted by states and local jurisdictions. Another important piece of information is that they should be constructed of consistent materials according to the buildings Construction Type per Table 601. Building code officials have their hands full, and the majority of them dont have the time or the resources to learn what they need to know to understand the reports they get. IBC requires one means of egress when mezzanine floor areas serve less than 49 occupants. The provisions have the effect of exempting requirements related to all of the following from spaces that are smaller than the area thresholds specified: 4. It may be possible to provide a domestic served limited area sprinkler system <10 heads to appease their concerns, The Boiler is also a pressurized vessel, meaning that it CAN, go Boom if over-pressurized !.Just sayin' :-o. The base code is sufficient, thank you. 6.1.12.1* Definition Industrial Occupancy. <<273A258AA2435F4F8243526AA2244383>]>> The clearance on that side should equal the length of the coils plus 600 mm (2 feet). The HVAC design engineer should be cognizant of the necessity to provide for the replacement of major equipment over the life of the building and should insure that provisions are made to remove and replace, without damage to the structure, the largest and heaviest component that cannot be further broken down. Main mechanical equipment rooms generally shall have clear ceiling heights of not less than 3.6 m (12 feet). The required room temperatures shall be measured 3 feet (914 mm) above the floor near the center of the room and 2 feet (610 mm) inward from the center of each exterior wall. (Were still on the 2009 IECC here. The provisions of this section shall apply to, Openings other than those necessary for the purpose of the, Penetrations other than those necessary for the purpose of the, 713.13 Waste, Recycling and Linen Chutes and Incinerator Rooms, Waste,recyclingand linen chutes shall comply with the provisions of NFPA 82, Chapter 6 and shall meet the requirements of Sections, 713.13.1 Waste, Recycling and Linen Chute Enclosures, Access openings for waste, recycling or linen chutes shall be located in rooms or compartments enclosed by not less than 1-hour, Table 509.1Waste, recycling or linen chutes shall discharge into an enclosed room separated by, 713.14 Elevator, Dumbwaiter and Other Hoistways, Elevator, dumbwaiter and other hoistway enclosures shall be constructed in accordance with Sections, 403.2.1.2 Special Detailed Requirements Based on Occupancy and Use, Shaft Enclosures, 707.3.1 Fire and Smoke Protection Features, Shaft Enclosures, The fire-resistance rating of the fire barrier separating building areas from a, 712.1.1 Fire and Smoke Protection Features, Shaft Enclosures, Vertical openings contained entirely within a, 4 Special Detailed Requirements Based on Occupancy and Use, 403.2.1 Reduction in Fire-Resistance Rating, Be enclosed at the lowest level with construction of the same, Extend to the underside of the roof sheathing, deck or slab of the building, and the. %%EOF Large central equipment shall be situated to facilitate its replacement. 2 0 obj endstream endobj 8 0 obj <. No mechanical equipment except for cooling towers, air-cooled chillers, evaporative condensers, and exhaust fans shall be permitted on the roof of the building. Rates for foreign countries are set by the State Department. . Mezzanines can be great features within a building because they provide an additional floor level without being considered an additional story as long as they comply with Section 505.2, which we will get into. Rating required? The total area of a mezzanine within a room shall be not greater than 1/3 the floor area of the room in which it is located. The means of egress for mezzanines shall comply with the applicable provisions of Chapter 10. A mezzanine acts like a room or space in which it has an occupant load and that occupant load must have the correct existing parameters per Chapter 10 (egress chapter). !..Pulling the handle noooooowww! Here is what the Handbook says: The provisions of 7.13.3 are worded so as to require a designated means of egress path only if the normally unoccupied building service equipment support area is very large. Get building science and energy efficiency advice, plus special offers, in your inbox. This is the same in both the 2015 and 2018 versions. 0000023815 00000 n Main mechanical equipment rooms generally shall have clear ceiling heights of not less than 3.6 m (12 feet). It is all in play as egress is from ANY point in a building or structure. Space requirements of mechanical and electrical equipment rooms shall be based upon the layout of required equipment drawn to scale within each room. The arrangement shall consider the future removal and replacement of all equipment. Nonoccupiable spaces like corridors, stairs, bathrooms, electrical/mechanical rooms, closets, and fixed equipment are subtracted from the total area to determine the net floor area . A mezzanine shall be open to the room in which it is located or enclosed depending on the occupant load or number of exits serving the mezzanine space as noted above. 0000002203 00000 n Ive been involved in the push to get Georgia to move to the 2015 IECC, and its not a fun process. The IBC includes requirements for panic hardware on some electrical rooms. Twenty-seven sections address covered and open mall buildings, atriums, hospitals, stages, buildings where hazardous materials are used and stored, jails and prisons, ambulatory care facilities and storm shelters, among other special occupancy issues. (M1505.4.3). Separate it and provide combustion air and you will be fine. 7 31 Larger mezzanines require two or more exit stairways. Permanent electric lighting and at least one duplex receptacle rated at not less than 15 A, 120 V shall be provided in every remote machine room . (speaking from personal experience). Elevator machine rooms, machinery spaces that contain the driving machine, and control rooms or spaces that contain the operation or motion controller for elevator operation shall be provided with an independent, The elevator machine room, control rooms or control space with openings into a pressurized elevator hoistway shall be pressurized upon activation of a heat or, 3005.4 Machine Rooms, Control Rooms, Machinery Spaces, and Control Spaces, The following rooms and spaces shall be enclosed with, Where elevator hoistways, elevator machine rooms, control rooms and control spaces containing elevator control equipment are protected with. In regards to the building code, mezzanines must comply in accordance with Section 505.2 of the International Building Code (IBC). stream %PDF-1.5 Unless otherwise specified, the per diem locality is defined as "all locations within, or entirely surrounded by, the corporate limits of the key city, including independent entities located within those boundaries. Panic Hardware for Doors | Is Panic Hardware Required? Travel distance, Common Path of travel, width Height, quantity . Without getting into detail, one exception would be if the occupant load of the mezzanine is not more than 10 and another is if it has at least two exits out of the space. 7.13.3.1 A designated means of egress path shall be provided within the normally unoccupied building service equipment support area where the normally unoccupied area exceeds 45,000 ft2 (4180 m2) in buildings not protected throughout by an approved, supervised automatic sprinkler system in accordance with 9.7.1.1 (1). I dont know when it first showed up, but its been in the IRC at least since 2012. Access doors or panels should be provided in ventilation equipment, ductwork and plenums as required for in-site inspection and cleaning. But that gap isnt my focus today. The major player in this arena is the International Code Council (ICC), and Ill focus on two of their codes that include HVAC design requirements for homes: the International Residential Code (IRC) and the International Energy Conservation Code (IECC). Rates for Alaska, Hawaii, U.S. That means some builders have been aiming for what they see as the sweet spot of less than 7 ACH50 but greater than 5 ACH50. Getting the homes heating and cooling loads (Manual J) are the first step. 0000012952 00000 n D`OH ! The industrial classification unlike the other occupancy chapters require protection for High Hazard operations only [40.3.2]. ), The good news for whole-house ventilation afficionados is that the airtightness requirements in the 2015 and 2018 IECC eliminate that sweet spot. The maximum air leakage allowed in IECC climate zones 1 and 2 is 5 ACH50 and in climate zones 3 through 8 is 3 ACH50. And second, theres enforcement. You must be a magazine subscriber to access this feature. 0000011042 00000 n IBC Table 508.2 would require that the room be 1 hour separated if the boiler is over 400,000 Btu/hr. - A mezzanine is an intermediate level between the floor and ceiling of any story. Conservation Code. Georgia has been subject to this requirement for several years now, ever since we went on the 2012 IRC. BayPoint (West Pittsburg, CA) is where I am from. 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