Tar Paper as underlayment/moisture barrier
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I have a question about using Tar Paper as an moisture barrier. This is a common practice in moist areas such as Coastal Texas but not very common in houses in my part of the country. The occupants have lived in the house for about 3 months and are complaining about a smell from the floor. Any info would be helpful. I am not sure how long ago the floor was installed.
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Norman, where I build, I found that a room with sun warmed floors heated the tar paper and then it smelled. I do not use it now and luckily ripped it out prior to laying my floor over it. Good luck.
This is common, but some use Kraft paper instead, does an even better job and doesn't smell.