Tuesday, October 22, 2013

More shed work - roof iron repairs.

The wylo shed's main corrugated iron roof needed some maintenance. 14 or so years near the coast is a fair time for secondhand roof iron that may have been slightly corroded to begin with, the outer edges needed replacing.

Last years  roof extension makes a handy platform at around wylo's deck level , on which a small  ladder can now be used for the remaining short climb up.

The variable speed drill was good for the 2 sized tek screw bits I used for fastening removal and re-application.  Extended the top hats at both ends to square the roof and get a better overhang past main 6" C-section steel beams.

Sheets were inspected and rusted ends cut off. Some sheets came down and i replaced these with new secondhand sheets. Sheets needed one overlap to cover the 6.5 m wide roof.



Following final tek screwing, old holes were caulked.

The repaired main shed roof

Recycling the existing sheets saved a bit but took allot more time than just getting brand new 6.5 m sheets delivered by truck in one go. I did several ute trips to bring in the shorter second hand sheets too,  6.5 m is too long to carry on the ute twin racks (would need a 3rd rack at the front of car)

In retrospect if I ever built another flat roof i would give it a bit more slope say 15 degrees overall, so that crevice corrosion between sheet overlaps might be reduced. I made the roof flat because it was easier to build the frame - each roof beam end was pulled up to its pole top by a block and tackle.

If the boat's axis is N-S like mine then a gable roof would be ideal,  but getting the beams-frame up would be more difficult than with a flat roof.