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Thread: Fabric for a bow shed

  1. #1
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    Default Fabric for a bow shed

    I'm building a 10' wide by 7' high by 20' long bow shed for storing one of my boats. It's an inverted U shape and I need suggestions for a covering. Cheap poly tarps are out, but I'm wondering if some of the heavier duty ones would last more then a few years.
    Clear or translucent plastic? Where would I get heavy duty, large width stock? Would they turn the bow shed into an absolute hothouse during the summer? Will plastic endure the brutal Vermont winters?
    Canvas? Expensive, but it might last the longest.
    Suggestions?
    Thanks!
    I was born on a wooden boat that I built myself.

  2. #2
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    Default Re: Fabric for a bow shed

    Maybe this place to do it on the cheap?

    https://www.billboardvinyls.com/

    Alex

  3. #3
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    Default Re: Fabric for a bow shed

    [QUOTE=Pitsligo;5358000]Maybe this place to do it on the cheap?

    https://www.billboardvinyls.com/

    Alex[/QU
    Reusing this stuff is a good idea, but it gives no promise that the material will be totally clean or free of holes.
    I was born on a wooden boat that I built myself.

  4. #4
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    Default Re: Fabric for a bow shed

    A friend in Maine (coastal) is going into his 3rd winter with one of these:

    https://www.tractorsupply.com/tsc/pr...e?cm_vc=-10005

    Still looks good.
    "If it ain't broke, you're not trying." - Red Green

  5. #5
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    Default Re: Fabric for a bow shed

    I just tripped across this stuff, intended for greenhouses.
    http://www.solexx.com/solexx-greenhouse-covering.html
    I have no experience with it at all, but it looks like it might do the trick. Comes in a roll, has an insulation value of R2-ish.
    Alex

    "A man who is not afraid of the sea will soon be drowned, for he will be going out on a day he shouldn't. We do be afraid of the sea, and we only be drowned now and again" Aran Islands Fisherman

  6. #6
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    Default Re: Fabric for a bow shed

    I found 50' x 40' (approx) HD tarps on the web at an agricultural supply site. I have a double walled bow shed over my Friendship clothed in white tarp which lasts about 5 years in central Maine. The translucency allows plenty of light to get in year round. It's too hot to work in on deck when sunny and >80 degrees outside but then again, it can warm up on a sunny winter day.

    Bruce Brown

  7. #7
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    Default Re: Fabric for a bow shed

    I use a 6 mil greenhouse plastic on my bow roof shed from https://www.growerssolution.com/page/GS/CTGY/gc

    Going now for almost 6 years and still in good shape and pliable.
    - John

  8. #8
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    Default Re: Fabric for a bow shed

    In response to the billboard vinyls, I bought a 20'x30' white/black to use for various cover needs. I do notice very small pin holes when viewing it against the sun. The vinyl does work well as a tarp though, easy to clean and stays pliable.
    - John

  9. #9
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    Default Re: Fabric for a bow shed

    Quote Originally Posted by bnaboatbuilder View Post
    I use a 6 mil greenhouse plastic on my bow roof shed from https://www.growerssolution.com/page/GS/CTGY/gc

    Going now for almost 6 years and still in good shape and pliable.


    This is what I use, in White. I get ten or more years out of it, using a shade cloth as an additional cover in the hot months. I use a double layer and keep them inflated them with a small blower. There's a special repair tape available to fix small holes

  10. #10
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    Default Re: Fabric for a bow shed

    I used 6 mil poly in an opaque white. I tried to seam a 20 foot piece into a 40' wide piece and it failed. I replaced it with a factory made 40' wide piece but I could not find opaque white in that size so I used clear. There is just no way around it being hot in there. However the white does lower the temperature some what. But I'm talking still 120 inside at high noon in the summer with white. With the clear, the highest recorded temperature was 142! If i go right out in the morning and open the doors and get my big farm fan going I can keep it under 100. Suck in the summer but in the winter it's great. 20 degrees outside but a very comfortable 50+ inside. Take the good with the bad I guess.

    You could do a custom made covering like those sold here: http://www.cover-tech.com/replacemen...LsoaAvAy8P8HAQ A little expensive but very durable. Still going to be hot.

    I also hear people have good luck with shrinkwrap. Like what they use to winterize boats. A little more expensive than poly but more durable. Condensations is also an issue. In my particular situation the addition of some 12" x 12" gable vents on each end wall solved that problem.

    I was always wondering that if I could address the lighting issue, if using a silver reflective pool cover as the cover if that would help with the heat issue. Here is a picture of mine. 45' x 20'





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  11. #11
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    Default Re: Fabric for a bow shed

    If you google "white poly tarp" you will find lots of places that sell white tarps. They are heavier and more uv resistant than the cheap blue ones. They will easily hold up for a few years.

  12. #12
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    Default Re: Fabric for a bow shed

    Quote Originally Posted by StevenBauer View Post
    If you google "white poly tarp" you will find lots of places that sell white tarps. They are heavier and more uv resistant than the cheap blue ones. They will easily hold up for a few years.
    I think this is the route I'm going to go. The white plastic would require a seam and comes in a bigger roll then I'll need. Plus, once they start talking about rip repair tape, I get nervous. The location of this bow shed might be changing over time and the poly tarp would be easier to remove and re-install without ripping. Even though the plastic is fairly thick, I worry about the -20F temps and high winds of Vermont winters. That stuff could be very brittle in those conditions. I'll start with the white poly tarp and see how things go.
    I was born on a wooden boat that I built myself.

  13. #13
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    Default Re: Fabric for a bow shed

    If you're looking for a product that has a similar use "out there" in some industry or other, it pays to go and look at what that industry uses and where they source it. In this case, there are agricultural users who cover the likes of cattle food crop stacks ( hay and silage etc) with a film cover. Have a look at the film covering material that these guys offer, there are many variations on the theme, all very durable, large widths, tough enough to take fastenings and highly uv resistant.
    https://www.globalplasticsheeting.co...tural-products

    John Welsford
    An expert is but a beginner with experience.

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