"Roof-in-a-bag"
Remove your new roof from the bag and unfold it.
Suspend it from nearby trees, like a hammock. (An organic action for Humans).
Cotton strings are placed next. One centimeter stubs of cotton rope are inside as buttons to keep the cord from pulling through the fabric weave. (Shown above, horizontal to scissors).
Even much rain is no problem. Yes; mold etc are real, though corrosion of steel reinforcement is equally difficult.
Morning, all wrinkles have disappeared. Rain is nice. Plan on it. This method of roof construction appears economically powerful enough to illuminate a pleasant path where immortal corporations will unavoidably encounter equal competition from mortal corpuscles.
Notice the first roof in the background. Shape is consistent using this technique.
Sailmakers use ice picks to hold cloth panels. The carpenter's chalk line, hammer, nails and scissors serve well yet can be improved.
The end panels are installed just as they were on the first test roof. The idea being to discover the limits of burlap and 60 mm cotton rope. The rope is spaced at 50 cm, rather than 100 cm as with the first example.
Apply the first layer of cement and acrylic. The wooden blocks merely limit motion and indicate a level position. This roof developed arches around the perimeter. More support blocks and clamps are necessary if one wants perfect horizontal lines beneath the outer edges.
The first layer, inside and out, is thick enough to completely cover the fabric weave.
Inside. Fabric strips soaked in acrylic and cement are easily placed over the cotton rope, which was previously covered by the first layer. The supports are utilized here only because the cords outside may have been removed too soon. One can see a bit of white from the cotton rope stubs in the closest two dimples.
One layer of burlap cloth proved insufficient for this larger test. Extra layers were minimally applied in patterns to add strength where necessary. The center of each 50 centimeter panel remained a single layer.
Sanding and shaping with a rough carpenter's file are interesting, artistically (and structurally, if one does not wait many days).
Dust causes no discomfort but is not healthy to breath. Air filters and dust masks are necessary. Similar to a carpenter work area. Design all methods to minimize micro fibers. Clean work areas as if in a house and there is no problem. Cleaning procedures are a continuous part of the job.
Roof number two has conga tone equal to roof number one. Equality of tone indicates the extra layers on the 2 x 3 meter roof equate to the single layer on the 1 x 2 meter roof.