Crawlspace Vapor Barrier


  #1  
Old 09-14-18, 09:53 AM
D
Member
Thread Starter
Join Date: Oct 2014
Location: USA
Posts: 15
Upvotes: 0
Received 0 Upvotes on 0 Posts
Crawlspace Vapor Barrier

I知 working on sealing up my crawlspace, as I am starting to have issues with humidity, musty smells, etc. A few years ago, I put two coats of dryloc masonry sealer on the brick, now I知 putting 6 mil plastic to cover the dirt floor. Im having issues attaching the plastic to the wall. Ive tried construction adhesive謡hich sticks very well to the brick but doesnt hold the plastic. Im not sure what else to try...maybe double sided tape?
 
  #2  
Old 09-14-18, 09:59 AM
S
Group Moderator
Join Date: Oct 2004
Location: WI/MN
Posts: 19,033
Received 1,233 Upvotes on 1,181 Posts
Tape, mastic, other options as well.

Have you done work outside the structure to divert water away in the first place as well?
 
  #3  
Old 09-14-18, 10:15 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,675
Received 1,813 Upvotes on 1,630 Posts
Mastic should work. Or tack a cleat onto the sill plate or floor joists to hold it in place until it has stuck to the mastic.
 
  #4  
Old 09-14-18, 12:54 PM
D
Member
Thread Starter
Join Date: Oct 2014
Location: USA
Posts: 15
Upvotes: 0
Received 0 Upvotes on 0 Posts
I dug a french drain around the problem side of the house, sealed up the vents, ran dehumidifier...its been a work in progress lol
 
  #5  
Old 09-15-18, 01:27 PM
D
Member
Thread Starter
Join Date: Oct 2014
Location: USA
Posts: 15
Upvotes: 0
Received 0 Upvotes on 0 Posts
I might try the mastic next. Im really not sure why the construction adhesive didnt work, i made sure the plastic was clean first. I read another thing that said acoustic caulk, but its like $7 per tube. Id like to find something that works without spending a million dollars lol.
 
  #6  
Old 09-15-18, 01:34 PM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,675
Received 1,813 Upvotes on 1,630 Posts
Foundation tar would also work, but might be messy.
 
  #7  
Old 09-16-18, 02:41 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,422
Received 786 Upvotes on 689 Posts
Foundation tar would also work, but might be messy.
No 'might be messy' to it. Foundation tar is good for a lot of things including getting on you as soon as you pull off the lid.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: