Foundation Concrete perimeter foundation stem wall with R-19 insulation board or foam Embed 2”x 4” treated wood nailers in the exterior surface of the perimeter concrete foundation stem wall to allow installation of cement fiber board siding to match modular siding Floor Structure 2”x 10” @ 16”on center (OC) floor joists Glued ¾”sub floor and 1/4" underlayment board for 1” two-layer subfloor Optional two steel channels or beams for modular or trailer transporting Exterior Wall Structure Exterior 2” x 6” Studs @ 16”OC with cement fiber board siding or equal Interior Wall Structure 2” x 4” studs @ 16”OC Sheetrock taped and textured and two coats of paint Roofing system A Professional Licensed Structural Engineer shall design the roof structure and old down requirements for specific site location code considering dead/live load, wind, and seismic conditions. Minimum ¼” sloped trussed 24”OC ½”roof sheathing, tar paper or equal, nailed asphalt three-tab shingle or membrane, modified bitumen, or standing seam metal roof Energy efficiency Synthetic high-density polyethylene fiber synthetic air and water barrier or equal, batt or blow-in insulation Minimum, R-38 ceiling, R-19 floors (or all higher if regional energy code requires). Energy efficient Light-Emitting Diode (LED) lighting fixtures. Sound Proofing 1. If Required for justice courts, police, or social programs facilities where sound proofing is critical, a Professional Licensed Architect/Engineer (A/E) should review the owner’s facility program and provide design for sound proofing with a minimum sound transmission Class (STC) rating 50 to 60 or stronger Sound proofing design options that should be considered include the following: Staggered wall studs Wall framing thickness Insulation thickness and R rating used on walls and ceilings Mass loaded vinyl wrap over the insulation batts Resilient channels cross ways to studs High density, soundproof sheetrock with minimum STC rating No sheetrock nails/screws into the wood studs Soundproofing permanent adhesive between double thickness sheetrock Sealant for all sheetrock seams Sound proofing rooms shall not have louvered or plenum heating ventilation air condition (HVAC) air transfer Sound proofing rooms shall have HVAC supply and return insulated duct with sound attenuator baffles Soundproof rooms shall have door jamb seals and actuated door bottom seals Fire/smoke detection, alarm, and suppression Foundations for modular to meet the following specifications. Fire/smoke detection and alarm system capable of remotely alarming offsite. Fire extinguisher(s) and cabinet(s). Wet or dry fire suppression if required by code. 24/7 sleeping reintegration facilities or clinics: A Professional Licensed A/E should review the owner’s facility program and make recommendation of applicable building code occupancy rating and if a fire sprinkler, suppressing system is required. If fire sprinkler system is required, A/E shall review the project site water system flow rate and pressure to assess if the project water supply is adequate.
