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Red Rosin vs builders felt under floorng
I contracted to have a Bruce solid oak floor (3/4" x 2 1/4" strips) installed and discovered at the end of the day that my contractor is using Red Rosin paper instead of builders felt. Not being a pro, I checked out Red Rosin paper on the web and found out that it is marginal at best; builders felt is far better in the long-term. This is especially true because the new floor is covering a room that is partially in an addition and partially in the original house, and the addition is about 1/8" higher than the original floor on one side of the room. Builders felt would have smoothed out the stresses on the flooring crossing that boundary.