New second Floor
New second Floor
(OP)
Hello,
I am doing a residential design/build project where we are adding a second floor to an existing split-leve house. The addition is above an existing 4-car garage that is 27'x33' with 8' clg. ht. and pre-fab roof trusses.
My question is this, what sort of a floor system should I use? I am thinking of using 16" wood I-Beams, but since their max. span is about 21' that requires me to have a bearing wall in the center, but I don't know what size LVL beam to spec. Also, those LVL beams will be EXPENSIVE, and the homeowner will Freak when I tell them how much they cost.
Any other Ideas of accomplishing this task?
Thanks!!
I am doing a residential design/build project where we are adding a second floor to an existing split-leve house. The addition is above an existing 4-car garage that is 27'x33' with 8' clg. ht. and pre-fab roof trusses.
My question is this, what sort of a floor system should I use? I am thinking of using 16" wood I-Beams, but since their max. span is about 21' that requires me to have a bearing wall in the center, but I don't know what size LVL beam to spec. Also, those LVL beams will be EXPENSIVE, and the homeowner will Freak when I tell them how much they cost.
Any other Ideas of accomplishing this task?
Thanks!!






RE: New second Floor
RE: New second Floor
-Mike
www.sewellgeneralcontracting.com
RE: New second Floor
RE: New second Floor
A 24" deep open web floor truss spaced at 24" o.c. without any additional roof loads would clear span the 27'-0" without any additional load bearing requirements in the center as long as the floor loading is 40#psf live and 15#psf dead.
Contact your local truss manufacturer, they will normally provide you with all of the truss layouts and engineering requirements as part of the selling price for the trusses. The cost should be about $95 each...
RE: New second Floor
I contacted a local truss designer and they are suggesting a 20" deep open web truss at 19.2" o.c.
There is actually an engineer looking at the foundation today, he already suggested we reinforce it and the homeowner has agreed to it.
Again, thank you all.
RE: New second Floor
RE: New second Floor
RE: New second Floor
Of course the first floor roof will have to be removed and covered while the second floor structure goes in, but the prices are much much less from the metal building companies. Oh, and before you gag, realize that you can clad a metal building in any finishes you want and make it look just like any residence.
Oh, and a metal building can be built in 7 days. This is a lot quicker than conventional construction which adds months and frustration. I will keep you posted...we are considering filming the project and submitting to THIS OLD HOUSE...
RE: New second Floor
RE: New second Floor