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Your Questions About 3 Bedroom House Plans 1000 Sq Ft

August 5, 2013

Paul asks…

Addition and Zoning means a revamped septic system?

I have a house that is a 2 bedroom, 1 bathroom home on 15 acres. At some point, we will add onto it. Our zoning and planning guides (like msot) base the size of the septic system on the number of bedrooms in the home. So, in going to a 3 or 4 bedroom home, I would need to increase the drain bed (according to the health dept). Its currently a 1000 gallon tank with a 1000 sq ft drain bed. How hard is it to increase the drain bed size? It is as simple as attaching the old tiles to the new tiles, and expanding into a new area? Would I simple just be laying perforated pipe in a sandy area, then filling it?
any idea of the cost associated with it?

Administrator answers:

In Wisconsin you have to make sure your system is up to current standards. In most cases this means an entirely new system. This is not something most governing bodies will allow the homeowner to do.

Usually you are required to be licensed by the state. I would call a few septic installers and ask them they will be current on the code and be able to give you a ROUGH idea of the cost.

I can tell you that a septic system can cost anywhere from $4,000.00 for an at grade system to $15,000.00 for a complete mound system (which is what 90% of the new or upgraded systems require).

David asks…

I am adding two bedrooms and a bathroom on the 2nd story….?

My question is, do I need to reinforce the current ceiling joists before I lay a floor? Right now, it is just a wide open attic space. The house was built in 1920, so it is pretty solid. The ceiling joists for the first floor are 2 X 6, not 2 x 4. Some people are telling me the ceiling joists were made to only hold the weight of the plaster/lathe, and not to support weight from up above. I was just planning on putting down some 3/4 tongue and groove plywood, and then start framing walls. The attic is about 1000-1200 sq ft. Any help is appreciated!

Administrator answers:

We have converted many attic areas into living space. I have advised several people in this forum on what to do.
Make a floor plan of your first floor walls. Now make a floor plan of the walls you propose to build on the 2nd level using onion paper ( thin paper). Lay your 2nd floor wall paper over top of your first floor wall plan. Do both of these on 1/4″ = 1 foot scale.
With 2″ x6″ ceiling joist on first level – you can easily span 8-10′ without a problem. Check your spans and note any areas that are more than 10′.
It is likely that a lot of your first floor walls will be located close enough to let you go ahead and install flooring in the attic.
On longer spans – see if can locate an upstairs wall in the middle of these spans. Take some 2″ x4″‘s and nail them alongside the attic roof rafters, let them extend down alongside the attic floor joist and nail then into the sides of the attic floor joist. This will help strengthen the floor in the attic by transfering some load to attic rafters.
Remember to re-route electrical wiring that may now be on top of the attic floor joist. Don’t just notch existing floor joist if they are covering a large span. You can notch the joist if they are close to or right over a downstairs wall.
Glue and screw your 3/4″ tongue and groove subfloor down on the attic floor joist.
If you insulate the sloped attic ceiling be sure to use styrofoam insulation chutes in the rafter spaces, this lets air flow through the rafters, install fiberglass insulation over the chutes. Keep these chutes continuous from unused attic space all the way up to where you flatten out your attic ceiling.
Install gable vents in the space above your flat ceiling to allow hot air to escape from attic. You need to ventilate this area good or you will be in on oven all summer.I would highly suggest a power roof vent fan.
Try to line 2nd level bath over the lower bath for an easier plumbing job.
Remember if you run your knee walls from up alongside the attic rafters down alongside your floor joist – you are actually increasing the load the floor joist can carry. You will need to put blocking between the wall studs at the top and bottom since you will not have a top or bottom continuous plate.
Take your time – do a good job.
Put an egress window (window large enough for people to climb out of) somewhere upstairs. Purchase a rope ladder or some other type of emergency escape system for occupants to get out and down.

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