I am adding a bathroom, laundry room and closet over my 26'x26' garage. My wife "requested" I change my design, so now the toilet is about as far away as you can get. (I told her I could change it, realizing I did not really know how I was going to do it.)
My flooring is 2x10" @ 2' O.C. on a beam. (at 2' because I nailed to remains of old trusses that I cut out) Span is 26 feet and beam is supported by schedule 80 4" pipe columns. THEN on top of that I have another layer of 2x10"@ 16" O.C. running 90 degrees. Everything is shimmed and toe-tailed across each other. So it is like an egg-carton (two layers of 2x10 that criss-cross each other) and ends of joists rests on all four walls. Walls are braced so beams are resting on solid 2x6 supports. The extra 2x10 layer let me hit my 2nd floor level and makes it very solid. I don't like to underbuild.
Because I had to snake through the flooring I had to drop below the garage ceiling to maintain my drop and not cut any joists. I will build a chase in the garage ceiling to enclose that plumbing.
My question. I am in Southern Ohio and realize the inspector will expect me to have some type of heating in the chase to keep the waste line from freezing. (trying to keep inspector happy on the first visit) I have been told it could be an electrical heat tape or lightbulbs, just some type of heat. All of my P-traps and toilet drain will have at least 10" of insulation under them so only thing in chase will be horizontal drain line that then goes vertical to basement. I don't see the line freezing, but want to do it correctly. I plan to install a mini-split system but know nothing about them. If I ran the mini-split lines through the chase, would the lines generate any heat in the winter time? I am willing to peal some insulation away on the inlet line if that would help.
Sorry-I am too much of a dinosaur to take pictures (I am more familiar with the old Polaroids and wiping wand) and I tried to teach myself Sketchup but gave that up before I got to the plumbing). I needed a dummy 2-D version of Sketchup and ended up just using pencil and paper.
Thanks for any help or insight.
My flooring is 2x10" @ 2' O.C. on a beam. (at 2' because I nailed to remains of old trusses that I cut out) Span is 26 feet and beam is supported by schedule 80 4" pipe columns. THEN on top of that I have another layer of 2x10"@ 16" O.C. running 90 degrees. Everything is shimmed and toe-tailed across each other. So it is like an egg-carton (two layers of 2x10 that criss-cross each other) and ends of joists rests on all four walls. Walls are braced so beams are resting on solid 2x6 supports. The extra 2x10 layer let me hit my 2nd floor level and makes it very solid. I don't like to underbuild.
Because I had to snake through the flooring I had to drop below the garage ceiling to maintain my drop and not cut any joists. I will build a chase in the garage ceiling to enclose that plumbing.
My question. I am in Southern Ohio and realize the inspector will expect me to have some type of heating in the chase to keep the waste line from freezing. (trying to keep inspector happy on the first visit) I have been told it could be an electrical heat tape or lightbulbs, just some type of heat. All of my P-traps and toilet drain will have at least 10" of insulation under them so only thing in chase will be horizontal drain line that then goes vertical to basement. I don't see the line freezing, but want to do it correctly. I plan to install a mini-split system but know nothing about them. If I ran the mini-split lines through the chase, would the lines generate any heat in the winter time? I am willing to peal some insulation away on the inlet line if that would help.
Sorry-I am too much of a dinosaur to take pictures (I am more familiar with the old Polaroids and wiping wand) and I tried to teach myself Sketchup but gave that up before I got to the plumbing). I needed a dummy 2-D version of Sketchup and ended up just using pencil and paper.
Thanks for any help or insight.
