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Largest-volume 1-rm addt’n you’ve done?

Nuke | Posted in Construction Techniques on July 29, 2005 06:36am

I’m sitting here flirting with the idea of putting an addition onto my home for a home theater. I think I would use SIPS and have the addition off the rear-wall of the home, from the basement elevation up. I’m thinking of 20x30x12 minimally (maybe high if I include a vaulted SIP ceiling), which shouldn’t be a problem for SIPS, but I’ve wondered what are some of the largest one-room additions some of you folks have done in terms of volume?

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  1. junkhound | Jul 29, 2005 07:34pm | #1

    20 by 40 by 14 ft ceiling - church narthex.  Built for <$10k (all volunteer labor) in the late 1970s. 

     

    BTW, per http://www.portaljuice.com/world_s_biggest_and_largest_buildings.html

    Boeing claims that its 747 assembly building at Everett, Washington is the largest building in the world at 13.3 million cubic meters (472 million cubic feet), having grown from the original 5.64 million cubic meters (200 million cubic feet). [1]

    The Vehicle Assembly Building at the Kennedy Space Center, Cape Canaveral, Florida, is 160 meters (525 ft) tall, 218 meters (716 ft) long and 158 meters (518 ft) wide, thus enclosing 3,664,883 cubic meters (129,428,000 cubic feet). See http://science.ksc.nasa.gov/facilities/vab.html.

    1. User avater
      Nuke | Jul 29, 2005 07:48pm | #2

      Dang'it all. I meant to your personal home. I know there are a sh!t load of large, one-room commercial environments.

  2. VaTom | Jul 29, 2005 08:19pm | #3

    Not quite what you had in mind either, but this is 20k cu ft residential here.  A big curved box with a pair of independent small boxes inside (bed and bath).  But no house attached.

     

    PAHS Designer/Builder- Bury it!

  3. User avater
    CapnMac | Jul 29, 2005 10:02pm | #4

    Might not quite count, a four-bay, 12' plate height 55' x 30' garage with a complete "Texas Basement" over, attached by an enclosed 10' "vestibule."  Was reasonably in scale to the 2 1/2 story 6000 sf house.

    Occupational hazard of my occupation not being around (sorry Bubba)
    1. Notchman | Jul 30, 2005 03:38am | #5

      What's going on?!!

      In another thread, somebody's inquiring about "California Closets" which spawned some funny interstate retorts....

      So, what the H#LL is a "Texas Basement?"  Is it something like an underground hot air balloon?  :-)

      1. User avater
        Nuke | Jul 30, 2005 05:49am | #6

        That's exactly what I wanna know: Texas Basement?

      2. User avater
        CapnMac | Aug 01, 2005 08:03pm | #8

        what the H#LL is a "Texas Basement?"  Is it something like an underground hot air balloon?

        Well, it comes from the near-universal use of slab foundations across the state (even where that's a stupid foundation choice).

        So, the big houses (ok, read McMansions) have no basement.  What they do have is a huge volume of space over the 3 & 4 bay garages under the 9 & 12 /12 roofs.  The roof face just begs for a dormer or two (whether sensible or not).  So, with a window or dormer in place, some bright bulb started putting a finished attic floor in and blocking in a "knee" wall & ceilingoid.  The real brilliance was in calling this "bonus space" something valuable like a "basement."

        Now, these creatures run from being an attic with nothing; an atiic with dormers; a half story room; or an actual full-height second story.  My experience wants to call a "proper" TB as a half story with dormers and a true stair (not a pull down).

        There's a "gotcha" on some of these.  In the upscale (read, highly restricted) subdivisions, any window that can be seen into from the street usually requires T,B,& F; and often at least a coat of primer.  That makes this "bonus" space a bright white, unairconditioned, oven to bakes one's stored items.Occupational hazard of my occupation not being around (sorry Bubba)

        1. User avater
          Sphere | Aug 02, 2005 01:25am | #9

          That's where ya hang the jerky, right?  Spheramid Enterprises Architectural Woodworks

          1. User avater
            CapnMac | Aug 02, 2005 04:34pm | #11

            where ya hang the jerky, right

            I do know of a half 1 1/2 story, half 2 story (with doghouse dormers on one side and a shed dormer on the other, 'natch) TB in the highest overpriced neighborhood in town.  SD regs are strict (so strict you technically need the ARB's approval for your kids to set up a tent over night).  So, the unconditioned space was drywalled and painted (color approved by ARB).  It was not insulated (not in the budget for the 6400 sf 3/3.5 monstrosity).

            The owner is a golf nut (thus spending extra for view of the very restrictive CC fairway).  Put some of his heirloom leather golf bags in the 'basement.'  Yep, only took one summer to get those to just about jerky.

            Had to leave a recording thermometer to prove just how hot that bonus space was getting.  Cheapadz skinflint would not spend bucks to insulate the space--idjit.  I put a louvered door in on the second floor hallway that connects to the TB.  That got the temps down under the hundreds in August (oh yeah, this storage space has south-facing windows, in quantity).  Dufus is still blaming his higher elec bills on "^&#$ money-grabbing utilities."Occupational hazard of my occupation not being around (sorry Bubba)

    2. Ken | Aug 02, 2005 08:48pm | #12

      I thought a Texas basement _was_ the garage! Guess that's just in the poorer parts of Texas and Louisiana.

      Help cure cancer! Donate unused computer time.

      1. User avater
        CapnMac | Aug 02, 2005 10:01pm | #13

        Guess that's just in the poorer parts of Texas and Louisiana

        Well, now, off to SE Texas, a garage is a bit of a step up--the trailer usually jus' has a carport . . . <g>

        And the space under the trailer inbetween the blocks is where the cats go to sleep ('cause the dogs is un'er the porch, doncha know?)

        I'll just gloss over some of the unreinforced attic spaces (ceiling-only joist scantlings later covered in 3/4" ply, then mid-span kneewalls then covered in DW; rafters only sixed for roofing also carrying ceiling loads . . . ).  "Hey, I got some crackin' in the walls of my Texas Basement, d'ya know a good fix f'r 'em?"  Something about how, "Yes, Move."  Not being the get-more-biznes-from-them answer . . . Occupational hazard of my occupation not being around (sorry Bubba)

  4. User avater
    JeffBuck | Jul 30, 2005 05:58am | #7

    how about the smallest?

    6x6 "addition.

    was officially so she had a place in the LR for the XMas tree.

     

    the odd thing .. was the fact the corner had been lopped off the house in the first place. The "addition" just balanced the existing layout.

     

    Jeff

        Buck Construction

     Artistry In Carpentry

         Pittsburgh Pa

  5. cliffy | Aug 02, 2005 02:01am | #10

    Three summers ago I added a 21 x 40 garage with a family room above for this couple getting ready to retire. Of course I had to cut the roof off the 1200 square foot house and build a new one to tie in so the whole works looked like it was built all at the same time.  The project with a few renos added to the existing part of thee house came in about 125k (Canadian)

    Have a god day

    Cliffy

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