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-   -   Framing out a basment - PT 2x4s with metal studs? (http://www.diychatroom.com/f19/framing-out-basment-pt-2x4s-metal-studs-61213/)

wesley8808 01-07-2010 01:05 PM

Framing out a basment - PT 2x4s with metal studs?
 
I am about to start finishing my basement and decided to use metal studs for a variety of reasons. My questions is whether I should first lay down PT 2x4s and the lay the metal track on top of that.

My reasoning is with the PT, I will have something to nail the trim into, plus it will keep the metal off the concrete floor and away from moisture.

Any thoughts would be greatly appreciated.

Bob Mariani 01-07-2010 05:43 PM

just place sill insulation under the metal track to provide a capillary break. You then install the trim with trim head screws directly into the metal track. I do all my basements renos with this method.

Ron6519 01-07-2010 06:24 PM

Quote:

Originally Posted by wesley8808 (Post 378351)
I am about to start finishing my basement and decided to use metal studs for a variety of reasons. My questions is whether I should first lay down PT 2x4s and the lay the metal track on top of that.

My reasoning is with the PT, I will have something to nail the trim into, plus it will keep the metal off the concrete floor and away from moisture.

Any thoughts would be greatly appreciated.

You could do that or Bob's scenario. For the base trim, you can install 1/2" plywood at the wall bottom. Just rip it narrower then the base molding you'll install. Just keep it off the floor in case there is a water episode. For the door trim, install wood for the R.O.
Ron

Dereck 01-07-2010 07:41 PM

i believe the a.c.q pt is corrosive to some unprotected metals, i think everything but stainless steel and hot dip galv. might be a factor to consider. I usually use rons' suggestion with ripping plywood for a nailer and then set drywall on top of that. works great for me. i usually go 1/2" off of floor with my plywood depending on floor covering

wesley8808 01-08-2010 08:55 AM

Thanks for the replies. I was planning on getting the metal studs for the bottom that would be ok on PT. But I like the Plywood idea much better.

Am I wrong to choose the metal studs over pine? My friend did his basement and he complained all the time about the quality of the studs he got. He has some serious bows and wished he used metal studs instead.

Bob Mariani 01-08-2010 09:01 AM

Metal studs are not used as commonly as wood in residential due to cost and a carpenter's lack of familiarity in the installation and value. It is by far a much better solution. Basement walls are problematic due to controlling moisture that may become trapped in the wall and damage the wall's components. The method I suggested works because I provide an air flow and nothing in the wall is effective by a wet condition. No food for the mold no growth!

wesley8808 01-08-2010 09:11 AM

Thanks again. i do like your method. Do you use the foam insulation? Like a thin strip? Or the bat (SP?) insulation?

My outer walls are already insulation from the builder, the basement is below grade and I do not have a moisture problem (been in for 5 years). I sealed the walls with Drylok before the insulation went up. A close friend that is a remodeler told me to gap the outer walls about 1/2 inch from the insulation to allow air flow. So I plan to use 1x1 metal studs there.

Bob Mariani 01-08-2010 11:32 AM

A dry wall is dry since it breathes into the basement freely. It will not be dry once you seal it with a finished wall. The outside insulation helps keep the condensation down in the summer, but you need it installed in the inside to prevent condensation on the cold concrete wall.
Sill insulation is about 3/8" thick and 6" wide. It is usually pink and comes in a roll.

Anti-wingnut 01-08-2010 12:25 PM

Quote:

Originally Posted by wesley8808 (Post 378837)

Am I wrong to choose the metal studs over pine?

You are making a very wise choice

Bob Mariani 01-08-2010 08:10 PM

Quote:

So I plan to use 1x1 metal studs there.
I just noticed this. Maybe a typo? This is way to small to support drywall without bending. Even 2X3 is too small. Stick with a standard 2X4 metal stud.

ccarlisle 01-09-2010 09:39 AM

Up here, we ourselves don't use metal studs ever on exterior walls. Maybe interior walls or bulkheads but the condensation/moisture/mould issues that we have - that you may not have to the same extent - preclude them.

We prefer the better heat transfer profiles that wood studs give us. Of course, to prevent wavy walls, you have to know how to install them and know what they're being installed on too.

Plus we don't want to come back in 5 years to replace the rusted drywall screws...


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