Scarp 1 hydrostatic head

I love the specs of the new flysheet design Scarp 1 by tarp tent, but am concerned  as to the hydrostatic head of the  silnylon material for the flysheet as it is only stated as being 1200mm and the groundsheet which is a silnylon pu material which is a little more than that but not much

Im not one for the science of things and have coped for years without knowing what the hydrostatic head of any of my gear was and have cope fine but when all the press is about hydrostatic head being at least 5000mm to cope with driving rain it make you think

So can i ask you all Do you think the new scarp1 is up to  the our lovely english weather ...... in particular our lovely driving rain

Also interested if anyone has got the new scarp 1 and what do you think of it

regards

david

My former TT Contrail never misted in a heavy rain.

 So far it hasn't rained when I've used my current TT Moment but ** I've coated the top 1/2 of the canopy with the same thin sealer of silicone & odorless mineral spirits that I used on the seams to preclude any possibility of "misting". **  This may have added an ounce + but it's certainly worth the extra weight for the peace of mind in a monsoon-type downpour that sometimes happens in high mountains.

 Also in further "mods" I'm using brown permenant marker to color the Moment's bright yellow transverse pole sleeve for better camoflage when stealth camping off trail in areas where it's not permitted by "THE AUTHORITIES".    

                                                                                                                                                 In some countries, like the U.K., that which is not forbidden is permitted, in others, like Switzerland, that which is not permitted is forbidden. (We all know Switzerland is truly a little anal Facist state with their ubiquitous "gnome" bankers, the Heidi myth notwithstanding.)   

Politics aside, any silnylon tent can do with a thin coating of silicone seam sealer on the upper part of the canopy. That said, I'd say that with double wall silnylon fly tents like the TT Scarp series you could very likely get away with merely spraying a good DWR coating like Revivex on the ripstop inner body so if any misting occured it would more easily run off the fabric, rather than soaking in.  This way you can save ounces by not coating the fly with extra silicone. No?

Thanks folks As per normal OMers still prove to be the best source of EXCELLENT advice available

Franco it good to know that silnylon will take a post monsoon deluge and the pic is proof of same ( by the way what mountain range is that in the background )

Eric Thank for the tip on coating the top half of the fly ( just out of interest what ratio of mix did you use for the coating .In relation to the inner and possible misting i read that scarp interior compartment is calendared nylon and highly water repellent so any drips or splash  that gets through the fly wont get through the inner  What are your thoughts  on this

Dave I too have great concerns as to the flooring as any prolonged weighted contact with a wet ground will cause penetration The  scarp flooring is a silnylon pu variety which has more of a hydrostatic head but i still feel i will need to take a more hardwearing groungsheet with me (which defeats the ethos of lightweight backpacking ) i take some joy in the fact that there are some excellent groundsheets out there that are extremely lightweight

once again excellent feedback

thanks folks

thanks chris  im feeling like my wallet is going to be short a few pounds soon but also will my backpack thanks to henrys new scarp 1 I will be placing an order as soon as i can get the wife permission ... 

How did we ever cope in the old days not knowing what hydrostatic head of our gear was I geuss we just got on with it

 I still believe in the old fashioned method of getting people advice which is what this forum is great for

 cheeers folks

When I coated my TT Moment, as I recall, the ratio of odorless mineral spirits to silicone (by volume) was, in that order, 5 : 1 .  After it dried I can see where I've coated the canopy but it doesn't appear to have made any difference in the feel of the material because the mixture was so thin. I did seal the seams twice in a belt-and-suspenders mentality.

I put the mixture in a plastic jar wide enough to fit my narrow 1 1/4" brush. During the seam sealing & canopy coating process I'd often screw the cap back on the jar so I could shake it vigorously, thus keeping it well mixed. This method worked much better than stirring the mixture.

 If you truly have waterproofness problems with your TarpTent I'd try brushing on a coating on the outside of the floor. Like Franco, I've had my Contrail in some pretty wet forest situations and never had a problem with the floor leaking. But I cheated and often used a very light plastic groundcloth, lighter than painter's drop cloths. That's because I feel it just helps the floor last a lot longer. There ae always rocks lurking beneath the floor.

David (Rock Monster)That is in the Annapurna range. The highest peak is Dhaulangiri 8,167m. I am at Ghorepani, about 2800 .For the first 10 days or so it rained from about 7PM till 5-6AM every night. In this other location the field next to us flooded. Where we are looks flat but there is a gentle slope. The Contrail is pointing towards the Machhapuchhre (Fishtail) Note how the Nepalese tents are guyed together. We were expecting and got a rough night. I missed most of it ( I slept...)

Franco

Franco Thanks for the info it has refreshed  my faith in the silnylon

Im now certain that i will get one of henry spire silnylon tents the only problem now is do i go for the scarp 1 or the contrail as it seems to be getting a lot of good reviews here

decisions decisions

 Thanks for all the adviced It beats science any day

david

I second that. Get a Scarp 1. 

  A TT Moment, as I now have, is definitely more wind worthy than a Contrail and less weight than a Scarp 1 but the Scarp 1, W/ the new, lower fly and a ripstop inner tent is, as Franco said, more versatile, especially with the crossing poles for wind and snow load. The Moment and Contrail are strictly 3 season tents.

cheers guy for the info and yes i will be getting the scarp as i need a four season tent for some highline wild  camps