Vapor / Discussions

we are thinking of upgrading our cottage. Currently it is off the ground at various heights, from 6" to 3 ft. Supported by cement blocks at various locations under the cottage and some around its perimeter.  In order to install a master bedroom and ensuing plumbing needs to be installed in this crawl space. Also we are...

...vapor barrior, but my indoor floors felt cold this last winter, making my whole living space cold.   Would it be ok to add insulation between the floor joists?  Over or under pipes?  I want to do this myself, simply, so was looking at something like bubble-roll type of insulation to staple in place.  Thanks!

...vapor barrier paint / vapor retarder primer. The bigger concern would be, does your home have an air barrier? More often than not over the last many decades the 6-mil poly is meant to be the air barrier as well, which is very different, read more here – The difference between air barriers and vapor barriers and how to ...

...vapors into the basement? I don't fully understand the vent /drain proposal, what exactly is the contractor is proposing - do you mean there is to be a drain in the floor and they are proposing a wall 'drain' or vent to let water out, or is it to let air pass into the wall assembly to let moisture evaporate? A properly...

...vapor barrier / vapor retarder products are a poly, foil is among the least permeable materials, I just want to make sure you are getting the kind of product you think you’re getting.