While overlapping of underlayment on the 15 is often up for debate the 30 pound product will be too thick for this purpose and should be butted together.
Asphalt laminated paper underlayment.
Consisting of two layers of kraft paper laminated with asphalt aquabar b is a non reinforced 30 30 30 duplex type grade b paper.
Lsu 30 30 30 asphalt laminated underlayment is rated for moderate water vapor resistance.
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Blue shield grade 3030 is a high grade flexible semi permeable moisture barrier designed for tile and wood flooring underlayment.
The paper comes in rolls typically 3 feet wide.
High grade asphalt for outstanding barrier.
Produced in 36 w x 167lf 500 sq.
Consists of 30 lbs per ream of high melt point asphalt laminated between 2 sheets of bs 30 kraft paper.
The floor trim around the edges holds it all down.
Asphalt felt paper is installed by rolling out on the subfloor before installing nail down products.
Floating floors can be installed over any existing hard floor surface but should have an underlayment between the laminate flooring and the subfloor.
You can buy laminate underlayment but if you have a bunch of old roofing felt it works just as well.
Building paper between layers of flooring.
Asphalt laminated barrier paper.
Easy to handle conform and cut.