by Mark F » Fri 27 Jan, 2017 11:22 am
1. The base fabrics vary in weight but there are many other factors you need to consider - head height of the proofing, type of proofing (full silicone, silicone/pu etc) The addition of pu tends to stiffen the fabric and decrease the tear resistance but adds to the waterproofness. You should be looking for a fabric with at least 1,500mm head height and preferably more.
2. Nylon is stronger but stretches more. It would only be in extreme circumstances that the strength of nylon was required over polyester. Polyester is also more uv resistant. The nordic brands of tents have used polyester fabrics for many years - eg Bergans, Fjallraven. Most big brand tents tend to use sil/pu as it allows them to tape the seams but Hilleberg and a few others use multi layers of silicone both sides to achieve very high head heights. These high headheight, full sil fabrics can be quite hard to source but extremtextil.de usually has some.
3. Pins - when joining two sections make sure you pin the seam before sewing. Seam sealer will fill the holes.
"Perfection is attained not when there is nothing more to add, but when there is nothing more to remove".