1001.1 SPACE ECONOMY. The net-to-gross floor area ratio for each floor of new buildings is to be provided with each submission.
A. The DGS standard net space allotments appear in Chapter 13. These allotments are a guide. Idiosyncrasies of each space must be considered.
1001.2 LANDSCAPING. Landscaping, including trees, shrubs and other improvements, are a
legitimate part of the design and construction, if within the Base Construction amount. Its extent must be judged against the programmed space cost and intent of the Project. Grading and seeding are the minimal accepted improvements.
1001.3 ROOF DESIGN. Roof designs must provide a positive slope to roof drains of at least 1/4” per foot. Crickets and similar fabrications shall be employed to eliminate ponding in valleys. In this regard:
A. Achieve the minimum slope by sloping the structural framing system, or justify other methods such as sloped insulation.
B. Roof drains are to be 4” minimum, unless justified otherwise, and are furnished and installed by the General Contractor. Rainwater conductors, including connection to the drain, are by the Plumbing Contractor. Insulation of the roof drain is by the Plumbing Contractor along with the RWC insulation.
C. Provide secondary drainage system as required by Code.
1001.4 ROOF DECK. Metal roof decks, new or existing, shall not be used for suspension or support of ductwork, conduit, ceiling systems, lighting fixtures or any other miscellaneous equipment or items.
A. All suspended items shall be supported from the structural members or a suspension system supported by the structural members. Include the above provisions in the contract
specifications.
B. When ponding occurs because of design of secondary drain system, the ponded water load should be included in the live load.
1001.5 BUILDING JOINTS. Expansion and control joints are required in partitions, walls, and floors to control cracking. These must be specified and shown on the drawings. Expansion joints in exterior walls are to have a mechanical weatherstop, in addition to any compressible sealant used.
A. Structural members must be permitted free movement. It is preferred to keep the main structural members within the building insulation envelope to minimize its expansion and contraction.
1001.6 FINISH CARPENTRY. The Quality Standards of the Architectural Woodwork Industry (AWI) are to be used for designing and specifying custom woodwork, cabinetry and finish carpentry.
1001.7 WINDOWS. The standards of the Architectural Aluminum Manufacturers Association are to be used for designing and specifying aluminum windows. Specific trade requirements and standards will govern for other types of windows. All metal windows shall incorporate a thermal break. All windows shall have insulating glass. All operable windows shall have insect screens.
1001.8 FINAL CONNECTIONS OF EQUIPMENT. The General Contractor furnishes and installs architectural equipment including kitchen, laboratory, hospital and laundry equipment. Rough-in of all services is installed by the HVAC, Plumbing and Electrical Contractors, as applicable, from “rough-in”
shop drawings, approved by the General Contractor and Professional. The following shall be accomplished:
A. The Professional shall coordinate the final connection requirements between the drawings and specifications of all trades. The lack of coordination in specifications and drawings between contracts is the most frequent cause for Change Orders.
B. The General Contractor shall include furnishing, installing and connecting of all service lines (waste, vent, water, air, vacuum, gas, drain, steam and condensate) from fixtures
within the manufactured equipment package, through, under or along the backs of working surfaces to the point of final connections
C. The HVAC, Plumbing and Electrical Contractors must cross check the approved “rough-in” shop drawing with those of the other Prime Contractors, before installing any lines or services, and report conflicts and discrepancies to the Professional and General Contractor.
D. Rough-ins shall be stubbed at least 8” above floor, out of walls or down from ceiling, and pressure lines valved (waste lines capped), unless shown otherwise for particular reasons.
E. Final connections to all plumbing services shall be done by the Plumbing Contractor.
F. Final connections on ventilating ductwork for exhaust systems and steam and condensate connections are to be done by the HVAC Contractor.
G. Specify that all wiring of equipment, both internal and external must be in accordance with the National Electric Code. All switches, controls and wiring integral to a specific unit or piece of equipment are to be furnished and installed by the Contractor furnishing that piece.
Final connections are to be done by the Electrical Contractor.
1001.9 LIGHTING USE. Standards of design for illumination shall be Lumens Per Watt for equipment selection, except where special effect is sought.
1001.10 FIRE EXTINGUISHERS. Fire extinguishers needed for occupancy of the Project (whether in cabinets or loose) are included in the construction project.
A. Bubble-face cabinets are preferred to flush or surface mounted cabinets.
B. Extinguishers are to be the type and size recommended by the National Board of Fire Underwriters’ and shall bear the UL label.
1001.11 PROVISIONS FOR FUTURE RADON PROTECTION. In order to be able to retrofit any building that has a radon problem with a remediation system in the future, all new buildings should include minimal-cost features that make it possible. The following features should be included as recommended in EPA/625/R-92/016 dated January 1993:
A. Use a minimum 4” layer of #57 stone with a vapor barrier under all basement slabs on grade. Seal or detail slabs for future sealing of all joints and penetrations, including the perimeter. Include a suction void and stubbed up vacuum exhaust pipe for future connection.
B. If basement walls are made of concrete block they should be selected for minimum porosity and filled solid.
C. Where crawl spaces occur, install a vapor barrier over the earth and seal all floor
penetrations. If a stone layer is installed under the vapor barrier, a future vacuum exhaust system can be installed.
D. HVAC systems should be designed to provide a positive pressure throughout the building.
E. Radon testing should be included in the air quality testing after the building is enclosed and nearly ready for occupancy.