question regarding common wall of house and 3 season room

The house my wife and I bought has a 3 season room that was built in 1961, so it's about time it gets touched up a little. On the wall connected to the house, i removed the plywood paneling to find the old shingles. I am going to remove the shingles also, but want to know the correct size of sheetrock i must put on that wall. Also, should i put plywood up before the sheetrock? The exterior wall is made up of boards about 1 inch thick, and 9 inches wide spaced about 1/4 inch apart from each other. The entire wall is about 2 inches deeper than the door frame, so i have plenty of depth to work with. I want to finish the wall with wainscoating on the bottom and painted sheetrock above. I am not going to insulate this wall because except for the door into the house, this wall is opposite the basement stairs. So, to summarize the questions:

What size sheetrock should i put up, and should i put plywood up before the layer of sheetrock?

Any help would be much appreciated.
Thanks,
Pat

 

Pat,

1/2" Drywall and no need for plywood if you have the 1x stock planking on the walls. Even if you did not have planking, and the studs are 16" O.C. drywall application is fine all on it's own.

Good time though to consider electrical improvements/expansion of a circuit before going much further.

One more note - if this is a non-heated room and you are living in the northern climates, reconsider the use of drywall.

Good Luck!

 

Thanks, for the reply. This is a nonheated room in New England.... What should i use instead?

Pat

 

Pat,

I should have said you COULD use drywall but I would use M/R - alittle more in cost but you could use it.

Sorry.

Hope this helps!

 

But can i assume M/R is Moisture Resistant Gypsum Board? I just want to make sure.

Thanks again,
Pat

 

Pat,

Yep!

 

thanks again!

 

patbsn,

It sounds like you are converting what was considered non-conditioned space into living conditioned space. The fact the siding was still attached says this to me. I would suggest that you talk to the building department regarding this change. It would add value to your home to have this space conditioned and included in your square footage if it is not currently. I am not trying to open a can of worms for you just giving the heads up.

Thanks,

Brian Garrison
General Contractor/Professional Building Designer

 

I'm considering a similar project. Do you have to pull off the paneling and the shingles or can you just sheetrock over the paneling? Aside from saving time, I would like to avoid any lead paint issues since the shingles are old and likely painted.

 

northernsong,

It would best to remove everything - removal of this is not an issue.

Removal would also make it better for new electric boxes and if you have door openings i.e. jamb sizes.

It would be if this was asbetsos.

 

I figured that would be the case. Thanks for the advice.