MSc in Integrative Ecosocial Design
Gaia University

Richard Kühnel

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Implementation I
Results - Shed Roof Extension

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In order to be able to sort the shed and have a protected work spot when it rains an extension of the shed roof was built. We reused the piers salvaged from deconstructing the deck, and wood from the former shed that has been taken down last year and built the poles and rafters. After digging 18'' deep holes that we filled with gravel and sand dug out from the front driveway as the sub-base we compacted it with a hand build wooden tool and set the piers. The posts were doubled 2x4s with a holes drilled in the bottom into which the metal rod sticking out of the piers fits. The rafters of the extended roof were bolted to the rafters of the existing shed such that the existing pitch continuous. We used 3,5'' long and 3/8'' thick nuts and bolts, some lag bolts, deck screws and nails. Doubled up 2''x6'' rafters were used for a girder to which the posts are attached with T and L brackets. Metal hangers are used to attach the rafters to the posts. The wall was assembled first and then lifted into place with the pins going into the pre-drilled holes of the posts.
We re-used the metal roofing from the old shed. The measurements are such that we could cut the old roofing sheets right in half. We unscrewed the bottom row of the roofing from the existing shed, slid the half-length sheets underneath and used roofing screws to attach it to the rafters. As protection against hitting and cutting one's head on the edge of the roofing as well as preventing water dripping down along the width of the roofline we slid a 1' thick sump pump hose over the edge that we had cut along the seems. We will need to add a few holes so the water can run off, but so far there is no problem during rain. Before winter time we will take this off and store for next year, because the sliding snow would push it off as it is not attached to the roof. The nail holes in the reused roofing material were sealed with silicon.


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