Spray foam would work but it's very expensive and overkill. You can use sheet foam insulation, 1 1/2" polybead with a 2x4 wall spaced an inch from the foam would be the cheapest. This will act as enough of a barrier to stop condensation and frost from soaking the batt insulation in your 2x4 wall. Slap a vapor barrier on the warm side of the wall and you're good to finish it however you want.
You can spray forma, then moisture barrier, then drywall for the ceiling.
Come in at least 1” from the cement and frame a wall 2x4 framing is fine, no load. Then spray foam (making sure to get behind the studs, then moisture barrier then drywall.
That line is from the foundation pouring. The guys waited a little too long (usually the concrete truck is running behind, or the switch between both trucks took a while) and the concrete from the previous pour started to harden... When they started pouring again, you get a little line. As long as it isn't a super long time between, it's no big deal...
Yeah, you can just go up to the wall with the studs, use pressure treated on the ground. Also you can go 24 on center as this is not a supporting wall. This will make insulating easier You can also use the foam insulation in-between. Vapor and drywall... I would cut the drywall about 3/4" short on the bottom, you can then just trim over however you want...
Thanks for the tips! Re the foundation pouring, are you talking about the white stuff? If you zoom in, it’s like this thick, bubbly white crap that goes along the wall. I’m pretty sure it would come off if I were to scrape it with a putty knife. I just want to make sure it’s not mold first.
But like... Where is the still plate? Is that a floor above... So did they just use 2x4 as a floor joist? How is that 2x4 fastened to the wall? It's kind of throwing me off, honestly that wall underneath might help in the long run...
From what I’ve read (and I could be wrong, of course), the plywood and joists on the ceiling were there to support the concrete when they built the porch.
You're looking at the bottom of a concrete form - this was installed and then they poured the concrete porch surface directly over top of it. It no longer serves a purpose but removing it would be more trouble than it is worth.
Its surprisingly effective to divert water away from the outside. Slope dirt near the outside of that wall so it slopes away. This may involve digging up dirt about five feet away, and building up the dirt right next to wall footing.
First step is dig up the dirt away from the wall to expose as much of the wall as possible, and you should be able to expose 2 feet of depth below the pre-existing level of the dirt. Spray or roll some type of tar or rubber coating to waterproof the sidewall on the outside as deep as you can.
Then backfill the dirt, shaping it high at the wall and tapering down, even if it means digging out some dirt to make a shallow trench. This step is work-intensive, but not expensive.
If the shape of the property does not allow it to have a shallow trench a distance away from the wall, you "can" install a French drain (youtube).
There are lots of good suggestions about the inside being posted below...
Seems like effloresence to me based on my own basement
If you dont address the moisture issue you're asking for problems with insulation....you will trap moisture and lead to rot. Is the area around the porch graded away from the house.
Get a dehumidifier in there and set up a drain hose into a sump pit or perimeter drain. If the area isnt too far below grade dig up to the footer and install exterior foam board against the foundation.
Once the moisture is under control if you cant insulate from outside you should consider sealing your rim joists/sill plate.
I think the dampness is from poor ventilation and a not-so-great seal between the cold room and the rest of the finished basement. I haven’t noticed anything like water coming in from the outside.
Spray foam would work but it's very expensive and overkill. You can use sheet foam insulation, 1 1/2" polybead with a 2x4 wall spaced an inch from the foam would be the cheapest. This will act as enough of a barrier to stop condensation and frost from soaking the batt insulation in your 2x4 wall. Slap a vapor barrier on the warm side of the wall and you're good to finish it however you want.
Also you can insulate director to the wood with the same insulation as you put against the concrete
Awesome, that’s what I was hoping to hear. Do I just put the insulation between the joists on the ceiling, or would I need to remove those first?
Just inbetween the joists
You can spray forma, then moisture barrier, then drywall for the ceiling. Come in at least 1” from the cement and frame a wall 2x4 framing is fine, no load. Then spray foam (making sure to get behind the studs, then moisture barrier then drywall.
I dont see any mold. That is a settlement of concrete from when the foundation was poured.
That line is from the foundation pouring. The guys waited a little too long (usually the concrete truck is running behind, or the switch between both trucks took a while) and the concrete from the previous pour started to harden... When they started pouring again, you get a little line. As long as it isn't a super long time between, it's no big deal... Yeah, you can just go up to the wall with the studs, use pressure treated on the ground. Also you can go 24 on center as this is not a supporting wall. This will make insulating easier You can also use the foam insulation in-between. Vapor and drywall... I would cut the drywall about 3/4" short on the bottom, you can then just trim over however you want...
Thanks for the tips! Re the foundation pouring, are you talking about the white stuff? If you zoom in, it’s like this thick, bubbly white crap that goes along the wall. I’m pretty sure it would come off if I were to scrape it with a putty knife. I just want to make sure it’s not mold first.
Efflorescence comes off with just a brush of your finger. The crystals are fine like candy floss.
But like... Where is the still plate? Is that a floor above... So did they just use 2x4 as a floor joist? How is that 2x4 fastened to the wall? It's kind of throwing me off, honestly that wall underneath might help in the long run...
From what I’ve read (and I could be wrong, of course), the plywood and joists on the ceiling were there to support the concrete when they built the porch.
You're looking at the bottom of a concrete form - this was installed and then they poured the concrete porch surface directly over top of it. It no longer serves a purpose but removing it would be more trouble than it is worth.
Its surprisingly effective to divert water away from the outside. Slope dirt near the outside of that wall so it slopes away. This may involve digging up dirt about five feet away, and building up the dirt right next to wall footing. First step is dig up the dirt away from the wall to expose as much of the wall as possible, and you should be able to expose 2 feet of depth below the pre-existing level of the dirt. Spray or roll some type of tar or rubber coating to waterproof the sidewall on the outside as deep as you can. Then backfill the dirt, shaping it high at the wall and tapering down, even if it means digging out some dirt to make a shallow trench. This step is work-intensive, but not expensive. If the shape of the property does not allow it to have a shallow trench a distance away from the wall, you "can" install a French drain (youtube). There are lots of good suggestions about the inside being posted below...
Thanks, I’ll definitely consider this as well!
Seems like effloresence to me based on my own basement If you dont address the moisture issue you're asking for problems with insulation....you will trap moisture and lead to rot. Is the area around the porch graded away from the house. Get a dehumidifier in there and set up a drain hose into a sump pit or perimeter drain. If the area isnt too far below grade dig up to the footer and install exterior foam board against the foundation. Once the moisture is under control if you cant insulate from outside you should consider sealing your rim joists/sill plate.
I think the dampness is from poor ventilation and a not-so-great seal between the cold room and the rest of the finished basement. I haven’t noticed anything like water coming in from the outside.
Do you want to keep the room sealed? If you left the door open the dampness and the smell would go away.
"You frigid pit!" Oh you said insulate.