Supply lines in outside walls or not?

Angie_DIYJuly 5, 2011

Hi,

I am in the midst of a complete kitchen remodel. In another thread, I have been grateful to get guidance on moving the drain/vents for the kitchen sink. Now I am wondering about the supply lines.

I live in a cold climate (upper midwest). Any advice on whether it is recommended to put the supply lines in the exterior walls (and make it easier to install cabinets), or is it recommended to shoot them up through the floor and protect them from freezing (as they are now)?

It would be easiest, I think, to shoot them up through the floor after the cabinets are installed (although I am installing a marble floor). In my house, the rim joist space in the basement is bricked in (except where the drain lines go). Since I am moving the sink over a couple of stud bays, I would have to chip out those bricks to get access to the exterior wall stud bay. This certainly can be done, but I don't want to do that if I don't have to. Nonetheless, the most important consideration is the possibility of freezing pipes!

Thoughts?

THANKS! A_D

Here is a link that might be useful: My other thread about moving the drain.

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brickeyee

They are more vulnerable in outside walls, but inside of cabinets may not be much better without adequate insulation in the wall.

I know more than one person who has to keep the cabinet doors under the sink open (to allow more warm air to circulate inside the cabinet) at night in the winter to make sure the lines do not freeze.

    Bookmark   July 10, 2011 at 10:57AM
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Angie_DIY

Thanks for the note, brickeye. I am planning to do a fiberglass blow-in blanket job. I debated pros and cons of flash and batt, but I think BIB makes the most sense overall.

    Bookmark   July 10, 2011 at 11:38AM
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