Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Construction Codes
Construction Code Commission General Rules
Construction Code
Part 11 - PREMANUFACTURED UNITS
Section R. 408.31153 - Construction details

Universal Citation: MI Admin Code R. 408.31153

Current through Vol. 24-16, September 15, 2024

Rule 1153.

(1) Building systems for premanufactured units shall provide or show, but not be limited to, the details listed below, including the method of their testing or evaluation, or both. These requirements shall apply to the building systems for building components only to the extent deemed necessary by the bureau or by an authorized evaluation agency to permit a proper evaluation of the building component. Each submission shall be identified by a specific model or component number.

(2) General requirements:

(a) Details and methods of installation of premanufactured units or building components on foundations or to each other, or both.

(b) All exterior elevations.

(c) Cross sections as necessary to identify major building components.

(d) Details of flashing, such as at openings and at penetrations through roofs and subcomponent connections. Indicate flashing material and gauge to be used.

(e) Attic access and attic ventilation.

(f) Exterior wall, roof, and soffit material as well as finish.

(g) Interior wall and ceiling finish material.

(h) Fire separation walls.

(i) Sizes, locations, and types of doors and windows.

(j) Recommended foundation plans, vents, and underfloor access.

(k) Energy calculations.

(l) Details, as necessary, showing barrier free design requirements are met.

(3) Building classification detail requirements:

(a) Occupancy or use.

(b) Area, height, and number of stories.

(c) Type of construction.

(d) Fire resistance ratings.

(4) Space and fire safety detail requirements:

(a) Detail of fire resistance rated assemblies for all stairway enclosures, doors, walls, floors, ceilings, partitions, columns, roof, and shaft enclosures.

(b) Details as to width of all aisles, exits, corridors, passageways, and stairway enclosures.

(c) Toxicity and flame spread classification of finished materials.

(5) Structural detail requirements:

(a) Engineer's calculations of structural members, where appropriate.

(b) Design soil bearing value.

(c) Structural and framing details of all floors, roof, and walls.

(d) Details and stress diagrams of roof trusses.

(e) Details of reinforcing steel.

(f) Complete loading schedule.

(g) Column loads and column schedule.

(h) Lintel schedule.

(i) Size, spacing, and details of all structural elements.

(j) Grade or quality of all structural elements, such as lumber, steel, and so forth.

(k) Elevation of structural elements, walls or sections thereof, providing resistance to vertical loads or lateral forces.

(l) Complete details of all structural connections.

(6) Mechanical detail requirements:

(a) Location of all equipment and appliances. Indicate equipment and appliances listed or labeled by approved agencies.

(b) Manufacturer's name, make, model, number, BTU, and input rating of all equipment and appliances, as appropriate, or the equivalent thereof.

(c) Duct and register locations, sizes, and materials.

(d) Clearances from combustible materials or surfaces for all ducts, flues, and chimneys.

(e) Method of providing required combustion air and return air.

(f) Location of flues, vents, and chimneys, and clearances from air intakes and other vents and flues.

(g) Details regarding dampers in ducts penetrating fire separations.

(h) Complete drawings of fire sprinkler systems, standpipe system, or fire alarm system.

(i) Detail of elevator or escalator system, including method of emergency operation.

(7) Plumbing detail requirements:

(a) Plan or schematic drawing of the plumbing layout, including, but not limited to, size of piping, fitting, traps and vents, cleanouts and valves, gas, water and drainage system.

(b) Plumbing materials, and location of all equipment and appliances to be used. Indicate fixture unit capacity of systems and the make, model, and rating/capacity of equipment and appliances. Indicate equipment and appliances listed or labeled by approved agencies.

(c) Make and model of safety controls, such as for water heaters, their location, and whether listed or labeled by approved agencies.

(d) How piping is to be supported and intervals of support.

(e) Location of vents above roofs and required clearances, including, but not limited to, clearances from air intakes, other vents, and flues.

(f) Methods of testing.

(8) Electrical detail requirements:

(a) Plan of service equipment, including service entrance, conductors, service raceway, and clearances above ground and above structures.

(b) Method and detail for grounding service equipment.

(c) Single line diagram of the entire electrical installation.

(d) Load calculations for service and feeders.

(e) Sizes of all feeders and branch circuits.

(f) Size, rating, and location of main disconnect/overcurrent protective devices.

(g) Method of interconnection between manufactured units or building components and location of connections.

(h) Location of all outlets and junction boxes.

(i) Method of mounting fixtures and wiring installations.

Disclaimer: These regulations may not be the most recent version. Michigan may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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