Supertramp wrote:Call me crazy, but Tyvek isn't waster resistant, silnylon would be a better option for the water resistant side of things. I do have a bit of a head cold & may have missed the point completely.
After a year of rigorously testing Tyvek 1443R, I have found it to be fully functional for lightweight tarps. Although not waterproof, it is weatherproof and more than adequate for repelling even the most heavy precipitation. Tyvek is a non-woven material and has slightly less tensile strength compared to sil-nylon. It gains a slight amount of weight when wet but dries exceptionally quickly
The quilt/bag cover is designed to be the perfect addition to the tarp shelter protecting from poor weather "splash up" as well as heat robbing wind.
Its construction from TYVEK1443r allows for great breathability and water resistance.
The wind blocking properties also improve the warmth rating of ones quilt or bag.
The deluxe version features a Sil Nylon base if you would like to leave the ground sheet at home.
Strider wrote:I thought Tyvek was supposed to be taped, not sewn?
Can Tyvek be used as a vapor barrier?
No. Tyvek is not a vapor barrier. Tyvek blocks wind and water and still remains breathable and allows water vapor to pass through the material, which makes it good to use as a weather shield. Unlike fabrics that have been coated with a waterproofing agent, Tyvek’s water resistance is due to the construction of the material. Tyvek has tiny holes that are too small to let bulk water and wind pass but are large enough to allow water vapor to escape. <1>
Strider wrote:I thought Tyvek was supposed to be taped, not sewn?
Ellobuddha wrote:Ive got one of Evans (Terrarosa) bag covers. I got mine made big enough for my quilt and pad. Might as well protect both for the small weight penalty in my opinion. Im very happy with it. I got it quite long as well so the whole mat and quilt can be completely covered over to protect from condensation or rain etc trying to get under the edges of my mid. Works very well
Ellobuddha wrote:I'll have to check tomorrow but pretty sure its just sewn. It really does a good job of keeping that spray off your bag. Also stops any drafts getting in through edge of quilt, providing extra warmth. Its further great at stopping foot of bag laying against wall of mid, which can be an issue for taller people, especially in single skin mid with wall condensation.
Its got a large top opening so you can have it right up head height and it vents all your warm air out. Ive used it in some really damp cool nights prior to winter up Kozi area and was very impressed.
Will double check on the stitching. Did have a photo of it all set up but may have deleted it. Will check that as well.
Yep, it is. Thank you!Ellobuddha wrote:Will do. Its the standard system from Enlightened Equipment quilts. It may be on their website.
Ellobuddha wrote:I'll have to check tomorrow but pretty sure its just sewn. It really does a good job of keeping that spray off your bag. Also stops any drafts getting in through edge of quilt, providing extra warmth. Its further great at stopping foot of bag laying against wall of mid, which can be an issue for taller people, especially in single skin mid with wall condensation.
Its got a large top opening so you can have it right up head height and it vents all your warm air out. Ive used it in some really damp cool nights prior to winter up Kozi area and was very impressed.
Will double check on the stitching. Did have a photo of it all set up but may have deleted it. Will check that as well.
JUST CONFIRMING THIS IS THE TYVEK 1443 - not the standard housewrap variety.
Scottyk wrote:Don't you find it getting wet under the tyvek as it stops the moisture coming out of your bag from floating away?
I have a SOl escape bivy which I have used as just the kind of thing you have here and I found it just held the moisture against the outside of the bag and so led to a wet outer sleeping bag, it was a few very cold nights The SOL product looks to be a tyvek type fabric and claims to be breathable.
I suppose I could see the purpose if your tent dripped on you but I have spent some nights in some very bad condensation situations and have never had a tent drip on me, I would buy a new tent if it did that. I also think that what a lot of people think is there sleeping bag rubbing against the end of the tent and getting wet is often moisture coming out of the foot box from the occupant of the bag.
Tortoise wrote:Scottyk wrote:Don't you find it getting wet under the tyvek as it stops the moisture coming out of your bag from floating away?
I have a SOl escape bivy which I have used as just the kind of thing you have here and I found it just held the moisture against the outside of the bag and so led to a wet outer sleeping bag, it was a few very cold nights The SOL product looks to be a tyvek type fabric and claims to be breathable.
I suppose I could see the purpose if your tent dripped on you but I have spent some nights in some very bad condensation situations and have never had a tent drip on me, I would buy a new tent if it did that. I also think that what a lot of people think is there sleeping bag rubbing against the end of the tent and getting wet is often moisture coming out of the foot box from the occupant of the bag.
Interesting thoughts, Scotty. I've tried the SOL escape bivvy too, and yes, my quilt was damp. It must be a bit different though, as it's not intended to be used many times (I came across that somewhere in my reading). And of course there are different degrees of breathability. I wonder if the reflective lining in the SOL bivvy reduces its breathability.
On the foot box dampness - you may have a point, but why would it just be at the foot, where my body tends to be the coolest? I also have woken up on occasions with my bag against the wall, having tossed and turned a little too vigorously.
Tortoise wrote:Scottyk wrote:Don't you find it getting wet under the tyvek as it stops the moisture coming out of your bag from floating away?
I have a SOl escape bivy which I have used as just the kind of thing you have here and I found it just held the moisture against the outside of the bag and so led to a wet outer sleeping bag, it was a few very cold nights The SOL product looks to be a tyvek type fabric and claims to be breathable.
I suppose I could see the purpose if your tent dripped on you but I have spent some nights in some very bad condensation situations and have never had a tent drip on me, I would buy a new tent if it did that. I also think that what a lot of people think is there sleeping bag rubbing against the end of the tent and getting wet is often moisture coming out of the foot box from the occupant of the bag.
Interesting thoughts, Scotty. I've tried the SOL escape bivvy too, and yes, my quilt was damp. It must be a bit different though, as it's not intended to be used many times (I came across that somewhere in my reading). And of course there are different degrees of breathability. I wonder if the reflective lining in the SOL bivvy reduces its breathability.
On the foot box dampness - you may have a point, but why would it just be at the foot, where my body tends to be the coolest? I also have woken up on occasions with my bag against the wall, having tossed and turned a little too vigorously.
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