Jeff, what's your thinking about using cotton traps? Doesn't that just insure the top is always wet? How is that better than leaving it uncovered?
Are canvas tarps waterproof?
Canvas tarps are water resistant. They are treated with oil & wax to make them water & mildew resistant.
Thus, if canvas tarpaulins are pitched or angled properly the water will run or slide off the cover.
Are canvas tarps breathable?
Canvas Tarps Are Breathable: Canvas is a very breathable material even after being treated for water resistance. ... Once again,
the breathability of canvas prevents moisture from building up underneath.
I live in Florida where we have regular torrential rain. 18 ounce canvas keeps rain off the equipment, especially the exposed gearbox and tail wheel. No puddling. I store my mower on parallel, level railroad ties protruding about 2" from the soil. This allows air to circulate under the mower keeping the blades and bearings dry. With 1,000 pound mower uniformly flat, it it is easier to mount on the TPH. Canvas tarp prevents very strong Florida sun from bleaching Kubota orange paint on my Land Pride mower.
Paint looks like new after four years.
An 18 ounce canvas tarp is pretty heavy, dry. Wet, an 18 ounce canvas tarp is very heavy and molds somewhat to the shape of equipment. My tarped implements go through hurricanes without the tarps blowing off. Large wind blown tree limbs have dropped into equipment area yet tarps remain in place.
In hot, humid Florida canvas tarps last four to five years. I use gallon size plastic milk cartons and/or TSC rubber feed dishes to mask sharp points on TPH towers.
I use my equipment shed to cover my MF 1755.
It is periodically said here and worth repeating:
You pay for covered equipment storage whether you have it or not.