Triple rolled seam??

[cwford]

Main seams are triple rolled and stitched (MLD Exclusive) and flat felled.

I have seen this description on a vendor site describing a seam as "triple rolled". I understand rolled hems but rolled seams? Anybody know what this means?

[Ramblinrev]

It is most likely a variation on the flat-felled seam where layers are folded over each other. Either that or the edges of the panels are treated like a rolled hem two layers thick. Not sure what it means but I assume they want to make it sound like an extra selling point. To me it just sounds like additional thickness on the seam making it harder to get a compact stuff when packing up.

[Catavarie]

My question is what type of product has this?

Pack? Tarp? Hammock? Tent?

I could see this being usable on a pack or stuff stack to lend extra strength to the seams so that you could really cram stuff into it.

[cwford]

Its on the MLD website and refers to the main (corner) seams on a pyramid tarp.

http://www.mountainlaureldesigns.com...roducts_id=130

[silentorpheus]

Its on the MLD website and refers to the main (corner) seams on a pyramid tarp.

http://www.mountainlaureldesigns.com...roducts_id=130

And their stuff sacks.

[cwford]

And their stuff sacks.

hmm I might have an MLD stuff sack. If I can find it -- the seam ripper and I might have to do a little investigation....

[Catavarie]

Those seem to be to be high stress seams they are using it on. I can't think of any other reason, besides marketing hype, to add another row of stitches to a flat felled seam.

[gmcttr]

Just thinking out loud here....no matter how many times you roll a seam before you flat fell it (or any other seam style), you still only have one layer of fabric coming off a single row of stitching from both sides of the seam. Combine that with a general lack of flat felled seam failures and I don't see the point "triple rolling".

[cwford]

Well the stuff sack for my MLD Trailstar is pretty simple. Its an envelope style bag with just a double roll seam on the long edge then a double roll seam along the bottom edge. The top has a typical cord channel. There's nothing with a flat felled seam. Quick and easy to make though.

[Boston]

Just thinking out loud here....no matter how many times you roll a seam before you flat fell it (or any other seam style), you still only have one layer of fabric coming off a single row of stitching from both sides of the seam. Combine that with a general lack of flat felled seam failures and I don't see the point "triple rolling".

It'd be for tensile strength along the seam, not sheer stress across the seam. More layers = more material being pulled = stronger. Think tarp ridgeline being strung between 2 tree's, not the ridgeline to corner tie-out tension. But I agree, sound's like a terminology gimmick.