Bushwalking gear and paraphernalia. Electronic gadget topics (inc. GPS, PLB, chargers) belong in the 'Techno Babble' sub-forum.

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TIP: The online Bushwalk Inventory System can help bushwalkers with a variety of bushwalk planning tasks, including: Manage which items they take bushwalking so that they do not forget anything they might need, plan meals for their walks, and automatically compile food/fuel shopping lists (lists of consumables) required to make and cook the meals for each walk. It is particularly useful for planning for groups who share food or other items, but is also useful for individual walkers.
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How do waterproof/breathable rain jackets work?

Tue 09 Jun, 2015 4:40 pm

How do waterproof/breathable rain jackets work?

The best full description I have ever found!

http://www.rei.com/learn/expert-advice/ ... works.html

How do waterproof/breathable rain jackets work?
Which is best: Gore-Tex? eVent?
A laminate or a coating?
Which is more breathable and comfortable?

These are basic rainwear questions that often require technical answers.
We'll do our best to provide explanations in language that non-scientists and non-engineers can comprehend.


:mrgreen: :mrgreen: :mrgreen:

Re: How do waterproof/breathable rain jackets work?

Tue 09 Jun, 2015 11:00 pm

Gore-Tex is the original as far as I know. But there are various copies now.

The material stops liquid water from entering your clothing, but it allows waver vapor (i.e. gas, steam) to escape your warm body. That's the "breathable" bit.

Very clever stuff. Goretex (and its copies) keep you comfortable where traditional rainwear makes you hot and sweaty. Often it seems wetter inside from all that trapped sweat from non-breathable waterproof clothing, including rubber, plastic and even oilskin macs and ponchos.

Re: How do waterproof/breathable rain jackets work?

Wed 10 Jun, 2015 10:42 am

all the figures are generated in the laboratory, when its bucketing down in the real world, it all becomes academic and any advantage one membrane has over another gets nullified a., worry about the physical venting instead.

Re: How do waterproof/breathable rain jackets work?

Tue 23 Jun, 2015 2:53 am

wayno wrote:...when its bucketing down in the real world, it all becomes academic...

Yes I agree and why I always carry a small umbrella! It just beats a coat and hat hands down.

wayno wrote:...worry about the physical venting instead.

Yes, I have always been a fan of a vest for this reason of venting as sweatiness has not usually a problem when the garment has no arms. Rain wet arms I can deal with but body sweating... no!

:wink:
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