20 mil poly odor barrier / Discussions

Which is better to stop odors, an oil or water based sealer?

...20 mil poly on the dirt floor. And it still smells. I want to seal the odor. the walls are cynder block 3 feet high. Than dirt floor covered with 20 mil poly, Then floor joists above.  I was thinking about sealing the cinder block walls and wood joists. Is it best to use oil based or water based sealer?   And what prod...

Posted by Mitch Dante Nov. 6, 2024 Healthy indoor air quality