Week 17: February 14-20

Week 17 is a short week, Monday was President's Day, so there was no school, which means no work. On Wednesday we came back and started putting up staging so the roof of our sheds would be more accessible.

After the staging was up, we swept off the deck thoroughly, measured up from the eaves 17 1/2" (the width of the Grace Ice and Water Shield, minus a 1/2" that extends down over the eaves. This aids in water run-off), and snapped a chalk line for referencing.

Here we are applying the Grace Ice and Water Shield. This is primarily for practice, as there is no practical application to putting material on a building with no true thermal envelope. Without heat, there is minimal risk of ice dam buildup. Heat is required to melt ice that would settle on the roof, allowing it to flow down to a lower, cooler point. There it would refreeze, having potential to cause major damage to the roof and underlying members (and insulation.).

Here we have felt underlayment down, getting ready to install our shingles. The nails are specially equipped with orange washers, which prevent the nails from being sunk to deeply, and more effectively pin the roof wrap in place.

And here in this last picture, you can see the felt overlapping the Grace Ice and Water Shield. Everything on the roof is worked from the eaves up, so as to make sure all materials overlap the previous lower material. This ensures that all water run off will be directed down and off the building in an efficient manner.