What to do between metal and studs?!?

[younganddumb]

Just finished up a 32x32 stick built building, with 2x4 16” OC…I went with 5/8” plywood for the roof and wrapped with a synthetic underlayment…My metal installer is coming next week but I feel like I need to put SOMETHING in between the metal and the 2x4 “stripping” that runs horizontally, every 2’ up the exterior portion of the wall…I think you guys call em “girts” or “purlins”??? I plan on using fiberglass bath insulation inside, then using either metal, plywood or T-111 on the interior, but it’ll be much later, as $$$$ has dwindled lately…located in NC…any help is appreciated guys! Thanks!
pics attached

 

[Natty Bumppo]

It looks like to me you already have girts? The spacing looks a little off on that bottom one, but these are what your metal siding will get attached to.

 

[jack stand]

Tyvek or Typar will help your insulation. The metal leaks a lot of air and it's an inexpensive improvement that you can do yourself by lunchtime.
Tape all your seams properly with the corresponding tape

 

[younganddumb]

It looks like to me you already have girts? The spacing looks a little off on that bottom one, but these are what your metal siding will get attached to.

Yeah, I have the girts..my question is, what do I put between them and the metal, if anything…I want to eventually insulate the inside…I’m thinking 30 wt felt paper, although it’ll look horrible on the inside until I wall it up…but that might be years from now

 

[younganddumb]

Tyvek or Typar will help your insulation. The metal leaks a lot of air and it's an inexpensive improvement that you can do yourself by lunchtime.
Tape all your seams properly with the corresponding tape

Thanks, I’ll look into the Tyvek…you think 30 wt felt paper would suffice…just trying to save cost at this point…I wish I’d have just used plywood on the exterior instead of girts…it would’ve been a bit more costly but would’ve looked much better until I wall up the inside

 

[ycgoat]

If using metal roofing and siding you might consider a foil radiant barrier instead of the Tyvek. You would still tape all of the seems. Both would act as a moisture barrier but foil with an air gap would reduce heat soak from the sun, although to get an air gap it probably should have been installed between the studs and nailers

 

[younganddumb]

If using metal roofing and siding you might consider a foil radiant barrier instead of the Tyvek. You would still tape all of the seems. Both would act as a moisture barrier but foil with an air gap would reduce heat soak from the sun, although to get an air gap it probably should have been installed between the studs and nailers

Yeah, probably so man…I wish I’d have given that a little more thought earlier on

 

[Leaflessshadetree]

I did tyvek. I then did 2" of sprayfoam insulation and 6" fiberglass.

 

[rayra]

yep, tyvek or whatever variety of moisture / wind barrier.

 

[Natty Bumppo]

Yeah, I have the girts..my question is, what do I put between them and the metal, if anything…I want to eventually insulate the inside…I’m thinking 30 wt felt paper, although it’ll look horrible on the inside until I wall it up…but that might be years from now

Oh yes... I see now. I knew I wasn't reading your question right as the answer seemed to be so obvious. I thought you were asking about adding "girts" or "purlins."

I used Tyvek on mine. It's just white on the inside face and won't look that bad.

 

[Masheen365]

When I closed in the carport for a shop last year weather proofing is not where I saved money. There may be cheaper options than Tyvek, tape and cap staples but I don’t feel like you get the level of protection. I saved all my money on labor because I work at my place for free.

 

[CraigStu]

I am thinking that Tyvek is so near to being universal, that is what I would go with.

 

[ycgoat]

Yeah, probably so man…I wish I’d have given that a little more thought earlier on

When insulating you could use a foil faced insulation and acomplish the same thing as long as you leave ~1" air gap between the metal and the insulation. If you put in the Tyvek now it would still reduce drafts and keep any condensation from dripping.

 

[jack stand]

OP you should be able to buy a 9'x150 tyvek roll for around $200 and another $50 for a couple of rolls of tape and a small box of cap nails. You will not regret this relatively small "investment" later.
Don't cheap out with the white woven stuff with the little holes punched through it. Tyvek or Typar only, I like the bright white interior that tyvek provides.
You should be really close with one roll (just by looking at your picture).

 

[Bretny]

Thanks, I’ll look into the Tyvek…you think 30 wt felt paper would suffice…just trying to save cost at this point…I wish I’d have just used plywood on the exterior instead of girts…it would’ve been a bit more costly but would’ve looked much better until I wall up the inside

Felt paper is junk man. In a few years the stuff turns brittle and wont hold up. If you want to go cheap at least use the big box store house wrap.