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  • Users: syarn
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  1. syarn

    when is your service maxed?

    if an engineer says "...The electrical panel is 400amp/240v/1 ph We currently have 335 amps connected to the panel before the addition of the dishwasher The dishwasher will overload the panel..." the dishwasher looks to have 50 rated amps, 60 amp minimum supply circuit conductor ampacity & 60...
  2. syarn

    roof insulation required on tenant upfit R-38?

    2009 IECC 2200sf type IIB assembly A-2 alteration of existing tenant space at covered mall building in austin texas to salad restaurant; does R-38 batt have to be installed below the deck minimum if insulation is added per table 502.2 (1)? the existing roof deck is R-6.24 and the engineer &...
  3. syarn

    metal stud wall diagonal bracing requirements

    2009 IBC 1700 sf salad restaurant type IIB, no sprinklers 1 story shopping center shell upfit. new interior metal stud walls; the partition types called for bracing diagonally every 4' OC (prototypes). in richmond virgina they use slip track metal heads to attach walls to roof deck above....if...
  4. syarn

    metal stud limiting height - what is it?

    if I am building a demising partition wall with 6" metal studs from concrete slab to bottom of metal deck. the bottom of the deck is approx. 19' AFF. what is the typical load one should use - 5, 7.5 or 10 psf? what is the typical min. allowable deflection - l/120, l/240 or l/360? does...
  5. syarn

    weight of trane YCD120C3

    anybody have a doc showing the weight of a trane YCD120C3? steve yarnall http://svyarchitect.blogspot.com/
  6. syarn

    astm e119 - mtl stud track attach directly to steel beams/columns SFRM

    are there typical approved assemblies in UL, gypsum association or warnock hersey which INSTEAD of using the Z-clip to connect a stud wall allow the metal stud track to be directly attached to the steel beam/column AND than "embed" the stud track in the spray fireproofing being applied to the...
  7. syarn

    designing metal stud track to accomodate vertical deflection

    any recommodations on what methods or tables or resources to use to verify the amount of vertical deflection to design for accomodating in the head track of metal stud walls? I see some of the ways to allow is via single deep leg track, double track, slotted track or slotted clip angle...
  8. syarn

    NEC 700.16 emerg illumination - 2lamps OR 2fixtures

    NEC 700.16 emergency illumination calls that the "...failure of any individual lighting element, such as the burning out of a lamp, cannot leave in total darkness any space that requires emergency illumination..." do the message board participants think this means each individual emergency...
  9. syarn

    ANSI/ASME A 17.1 (2004-2005) - 42" or 48" pit ladder above sill?

    does the ANSI/ASME A 17.1 Safety Code for Elevators (2004-2005) require the pit ladder to be 42" or 48" above the sill level and what section reference is it in the code? is there a place on the internet to view the ANSI/ASME A 17.1 Safety Code for Elevators (2004-2005)? steve yarnall...
  10. syarn

    100 kW~ ???? tilde means???

    if architect is reviewing a document and there is a spec listing " 100 kW~ " what does the tilde ( ~ ) mean???
  11. syarn

    anodic index (V) of structural steel

    anybody know the anodic index (V) of structural steel??
  12. syarn

    roof gutter calc - nspc table 13.6.3

    is there a step-by-step online resource for using the national standard plumbing code table 13.6.3 to calculate the min size of residential style roof gutters? the table lists for example: for a dia of gutter = 5" the max projected roof area for gutters (@ 1/16" slope) = 625 sf and 26 gpm for a...
  13. syarn

    no backflow preventer required???

    5,380 sf developer retail shell. the shell upfit drawings show two single user bathrooms (1 lav, 1 gravity flush toilet) plus 1 mop sink & 1 tank hot water heater. is a backflow preventer required by code right after the water meter?
  14. syarn

    gas piping in a plenum - 404.1 IFGC

    are you allowed to run gas piping in a plenum (space above a drop ceiling)? any one have pdf copy of 2003 IFGC commentary section 404.1 that clarifies plenum from circulating air duct?
  15. syarn

    simple plumbing riser diagrams for architects

    is there an online resource that walks an engineer minded architect thru simple, small plumbing riser diagrams? this is for strip shopping center "shell" docs - 1 or 2 bathrooms (1 wc/1 lav)+ mop sink + fountain + HWH.
  16. syarn

    attic sprinklers - required by nfpa 13???

    does 2007 nfpa 13 section 8.15.1.2 offer exceptions from sprinkling an attic? for example, 2007 nfpa 13, section 8.15.1.2.2 says concealed spaces of noncombustible and limited-combustible construction with limited access and not permitting occupancy or storage of combustibles shall not require...

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