What exactly does this mean, we have a tent rated as 5000mm and some friends have one rated as 2000mm but I am sure they are both waterproof. Is our one good for a amonsoon and the other a light drizzle.
Don't forget to leave a review of all tents you've used, for a chance to win fantastic prizes
Hydrostatic Head is a column of water on top of the tent that it can survive without leaking. I think manufactures put a column of water on the tent and see when it leaks.
2000MM HH, means the tent would be good for light showers etc. But the 5000MM HH means the tent would survive much more rain than the other without leaking.
Hope I'm correct on this one, but that's just what I've been told lol..
Quote: Originally posted by medunne on 01/7/2007
What exactly does this mean, we have a tent rated as 5000mm and some friends have one rated as 2000mm but I am sure they are both waterproof. Is our one good for a amonsoon and the other a light drizzle.
It means if you put the fabric of your tent at the bottom of a tube containing water 5m high, the pressure of the water wouldn't be able to push its way through the fabric.
Your friends tent fabric has "only" been tested at 2m.
And what it really means is both are perfectly adequately waterproof for use in tents - though yours possibly might make a better skin for a boat.
And it's "possibly" because, if I recall correctly, the British Standard for tents only specifies 1m. Tent companies used to test at 2m to "show off" and more recently some have tested at 4m and now 5m. But chances are some of the tents that passed the 2m test would actually pass the 5m test. So your friends fabric might make a perfectly good boat too.
We've got a 5000mm HH and it stood up to the worst possible weather ever last week (25 June - 29th) The HH means the amount of water per square cm that your tent can handle before it leaks through the material. Most good tents are around 2500mm HH so your 5000 should have no problems. If your tent is an Outwell you'll have no problems in the most awfull conditions. hopefully you'll never have to find out!
Don't forget to leave a review of all tents you've used, for a chance to win fantastic prizes
Quote: Originally posted by windmonkey on 01/7/2007
We've got a 5000mm HH and it stood up to the worst possible weather ever last week (25 June - 29th) The HH means the amount of water per square cm that your tent can handle before it leaks through the material. Most good tents are around 2500mm HH so your 5000 should have no problems. If your tent is an Outwell you'll have no problems in the most awfull conditions. hopefully you'll never have to find out!
Hi windmonkey.
Paul gave the correct answer to H H
Regard
Rex
------------- "Be the person your dog thinks you are" (BM)
Quote: Originally posted by windmonkey on 01/7/2007
We've got a 5000mm HH and it stood up to the worst possible weather ever last week (25 June - 29th) The HH means the amount of water per square cm that your tent can handle before it leaks through the material. Most good tents are around 2500mm HH so your 5000 should have no problems. If your tent is an Outwell you'll have no problems in the most awfull conditions. hopefully you'll never have to find out!
Apart from all the Outwells that everyone was complaining about leaking recently...
------------- 'I liked freezing my n*ts off so much, I bought the company'
Ours is a khyam harvard delux and it worked well ar Normans Bat this weekend with monsoon conditions. other tent is a Wynnstre peregrine 6 which is untested in heavy rain
ooo our Sunncamp awning is 2000mm and it did leak last night but it was torrential rain !!!! The leaks were odd drips here and there and leaks from the awning thread, sorry i know this isn't a tent but was interested in what the hydrostatic numbers actually meant
------------- Bee
Teenager for sale! Eye rolling, back talking, temper tantrums, and I already know everything attitude included. All sales are final!
Hi belinda
The figers quoted by the manufacture for the H.H.is for the finished material the tent is made from.what really matters is how well they sow this material together when the storms arrive this is when it shows. If you read the small print on most tents it normally says suitable for summer camping.but we are now getting some very unseasonable weather and is showing on tents that are not well made and designed.A material with an H.H. of 2000 should not leak under prolonged heavy rain but if the tent is badly designed or made it will leak.When you look at a ridge tent or a bell tent or tepee these tents were made from untreated material but they kept out the rain.
All the best.
Rex
Regards
Rex
------------- "Be the person your dog thinks you are" (BM)
our outwell with stood the rain for 3 days but then it rained for 12 hrs solid(heavy rain) and eventually it came in at 2 of the seems near the side doors where the pods hang.but still impressed with it.