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[ctpres]

what about using springs on one side to hold tight? just an eye hook to the post and your tarp holding lumber i would but on the down wind side so it does not allow the tarp to fly up to much

just thought bungy cords are cheaper than springs

Securing the tarp is one of my biggest unsolved problems. Seems to be two ways, fixed mount and spring loaded. Spring/bunge would be easy and make replacement a snap. Maybe one of the TBN U. Professors will chime in.

 

[ctpres]

Moving right along. Found 18'x36' silver tarp which should be just about the right size, coupled with 9 inch bungee balls to attach around the edges. I drilled 1 3/8 inch holes thru the ends for a 1 inch pvc rail (with 3/4' emt inside for strength.) Reamed one inch tees so they would slide along the side rail. Built ridge pole using 4 way 1 inch cross spaced to match tees located on the side rail and glued ten foot 1 inch pipes at each cross. Next step is to measure width of tarp, add a couple inches for bungees on each side and cut ten footers to size. Raise center to achieve desired bow and glue bowed ridge poles into the slip tees. Should have it pretty much done this week. Cost of this roofing project, just under $200. Will post pics of hoop roof before tarp goes on.

 

[ctpres]

One step closer, actually starting to look like a roof. Now all I have to do is wait for a low/no wind day. Only problem so far is tarp 2 foot shorter than advertised and I was expecting less than a foot.

 

[EddieWalker]

I'm sure glad you posted this picture with the PVC pipe forming the arch to your roof. I was trying to figure out what you were doing with the pipe and how it would work. Now it all makes sense!!!!!!!!

Eddie

 

[beeforty]

I came across this on another forum: http://www.billboardtarps.com/:) They sell used billboard tarps that are thicker than regular with closed sleeves on the edge. Just have to put with an advertisement on the inside.

 

[srs]

ctpres, looks very nice. But with some of the winds we have I don't think it would last very long. Is wind an issue in your area? Nice job though.

 

[ctpres]

Billboard tarp? Great idea, will check it out for the replacement if this project works/lasts.
Winds? Yup still engineering for that. Planning to wire cross brace two end sections much like fence line and gate posts, will post pic when that is done. Already have doubled the number of grommets And will probably box in the ends to reduce air flow thru tunnel. If this dosn't work (50/50 chance) i plan to use all that PVC for water line to pond and then do a more typical tin roof. At my age I am not expecting to still have RV in 3 to 5 more years so I need to at least try cheap first. Also, after RV life the plan for structure is to turn it into a 36 x 15 foot greenhouse. Easy to do if tarp system works.

 

[ctpres]

Got one end enclosed and braced. Decided against wire cross brace and went with heavier wood brace. Figured twisting wire hard to get right without damage to PVC. Still waiting for that windless day to install tarp.

 

[hobie]

Sure would like to have that in my yard! Be a nice place to keep my boat. Thanks for sharing the project! Brian

 

[ctpres]

I think I'll call this Texas size RV guest house project DONE. Tarp top was a real challenge. Today was supposed to be low wind, but by the time I got started up to 10/15 mph. A few more braces, upgrade power from 30 to 50 amp just for guests with bigger rigs and some day add a sewer line connection. If there are no questions-this is a closed project