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Anticipating an addition Bob in WI 04-08-2009
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Posted by Bob in WI on April 8, 2009, 12:19 pm
Planning to build a 3-season cabin in northern WI (sandy soil, 100' from a
lake, weather extremes but no earthquakes). To spread the costs I'll get
by with a sand point well and a privy at first, add indoor plumbing a few
years later.

One option is to contract with a company that builds garages and cabins.
They frame the walls in their factory, erect on a reinforced concrete slab
over 12" sand buildup. They've been doing these for 20 years

Here come the questions. When it comes time for water and septic, I can
think of 3 options:

1) Break up the floor and somehow run plumbing underneath. Is this the
usual practice? Is this even practical?

The other options would mean putting up a small addition (I may be able do
this myself) to hold the pressure tank, water heater and bathroom, route
supply and drain lines through the wall for the kitchen sink.

2) Build this on another slab. Do I need to tie the 2 slabs together and
how is it done?

3) Build it over a crawl space (to hold the tank and heater). Is it even
possible to tie the 2 structures together -- one on a slab, one with frost
footers -- and how?

And what else am I missing here?

TIA

Posted by bob haller on April 8, 2009, 12:56 pm
> Planning to build a 3-season cabin in northern WI (sandy soil, 100' from =
a
> lake, weather extremes but no earthquakes). =EF=BF=BDTo spread the costs =
I'll get
> by with a sand point well and a privy at first, add indoor plumbing a few
> years later.
> One option is to contract with a company that builds garages and cabins. =
=EF=BF=BD
> They frame the walls in their factory, erect on a reinforced concrete sla=
b
> over 12" sand buildup. =EF=BF=BDThey've been doing these for 20 years
> Here come the questions. =EF=BF=BDWhen it comes time for water and septic=
, I can
> think of 3 options:
> 1) Break up the floor and somehow run plumbing underneath. =EF=BF=BDIs th=
is the
> usual practice? =EF=BF=BDIs this even practical?
> The other options would mean putting up a small addition (I may be able d=
o
> this myself) to hold the pressure tank, water heater and bathroom, route
> supply and drain lines through the wall for the kitchen sink.
> 2) Build this on another slab. =EF=BF=BDDo I need to tie the 2 slabs toge=
ther and
> how is it done?
> 3) Build it over a crawl space (to hold the tank and heater). =EF=BF=BDIs=
it even
> possible to tie the 2 structures together -- one on a slab, one with fros=
t
> footers -- and how?
> And what else am I missing here?
> TIA

place the sewer line under the slab before its poured..... ....along
with a water line.

everything else can be added later.

cost to add sewer line at time of pour very cheap you must decide just
where it belongs in advance.

incidently its cheaper and easier to go larger now than add a addition
later

Posted by on April 8, 2009, 1:33 pm
> > Planning to build a 3-season cabin in northern WI (sandy soil, 100' fro=
m a
> > lake, weather extremes but no earthquakes). To spread the costs I'll ge=
t
> > by with a sand point well and a privy at first, add indoor plumbing a f=
ew
> > years later.
> > One option is to contract with a company that builds garages and cabins=
.
> > They frame the walls in their factory, erect on a reinforced concrete s=
lab
> > over 12" sand buildup. They've been doing these for 20 years
> > Here come the questions. When it comes time for water and septic, I can
> > think of 3 options:
> > 1) Break up the floor and somehow run plumbing underneath. Is this the
> > usual practice? Is this even practical?
> > The other options would mean putting up a small addition (I may be able=
do
> > this myself) to hold the pressure tank, water heater and bathroom, rout=
e
> > supply and drain lines through the wall for the kitchen sink.
> > 2) Build this on another slab. Do I need to tie the 2 slabs together an=
d
> > how is it done?
> > 3) Build it over a crawl space (to hold the tank and heater). Is it eve=
n
> > possible to tie the 2 structures together -- one on a slab, one with fr=
ost
> > footers -- and how?
> > And what else am I missing here?
> > TIA
> place the sewer line under the slab before its poured..... ....along
> with a water line.
> everything else can be added later.
> cost to add sewer line at time of pour very cheap you must decide just
> where it belongs in advance.
> incidently its cheaper and easier to go larger now than add a addition
> later- Hide quoted text -
> - Show quoted text -


Sounds right to me. I'd also check on building permits and code
issues BEFORE going too far.

Posted by EXT on April 8, 2009, 1:47 pm
> Planning to build a 3-season cabin in northern WI (sandy soil, 100'
> from a lake, weather extremes but no earthquakes). To spread the
> costs I'll get by with a sand point well and a privy at first, add
> indoor plumbing a few years later.
> One option is to contract with a company that builds garages and
> cabins. They frame the walls in their factory, erect on a reinforced
> concrete slab over 12" sand buildup. They've been doing these for 20
> years

A concrete slab on a foot of sand buildup doesn't sound very good. I hope
that you are planning on a concrete stiffener wall with reinforcement,
around the edge of the slab down into the soil. This will stop little
critters from tunneling under the slab and removing the sand.


Posted by Bob on April 9, 2009, 12:28 pm

>> Planning to build a 3-season cabin in northern WI (sandy soil, 100'
>> from a lake, weather extremes but no earthquakes). To spread the
>> costs I'll get by with a sand point well and a privy at first, add
>> indoor plumbing a few years later.
>> One option is to contract with a company that builds garages and
>> cabins. They frame the walls in their factory, erect on a reinforced
>> concrete slab over 12" sand buildup. They've been doing these for 20
>> years
>
> A concrete slab on a foot of sand buildup doesn't sound very good. I
> hope that you are planning on a concrete stiffener wall with
> reinforcement, around the edge of the slab down into the soil. This
> will stop little critters from tunneling under the slab and removing
> the sand.
>
>

My notes from talking to one of their reps a few years ago says '12" x 10"
footing'. That what you mean?

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