Originally Posted by Mike210
I have started construction of a Winter Tarp and have a question. Once the flat felled seam is sewn, which side is the inside? The side with one row of stitching or two or does it matter?
Good news. It doesn't matter. You should seam seal with a silicone based sealer the non-raised, or smoother side (does that make sense?). Generally, seam sealed sides are on the inside so they don't have as much potential abrasion.