Roof Eave Blocking

I believe eave blocking is necessary to maintain a load path and avoid rotational forces on the rafter truss but i disagree with you that it is precriptively required by the code.

Roof eave blocking.

Construct a hidden roof intake vent at the top of the building wall by removing the wall top trim or top siding board cutting away any building sheathing or blocking at the wall top nailing 1 spacer blocks 16 on center nailing a new spaced out wall top trim board along the roof eaves and screening the opening against insects. Block any spaces between roof decking and covering to prevent embers from catching. Install perforated soffit intake venting in the roof overhang or eaves all along that edge. Provide at least 2 of free air space from the new lower roof eaves all the way to the original roof ridge.

Build your roof or re roof with materials such as composition metal or tile. Bumps at the edge of the roof would be a sign that more space should have been provided. Before the roof sheathing goes on the open framing provides easy access for attaching the return blocking and the nailers for the rake soffit. If a part of your roof is in constant shadow it may have thicker ice than areas of the roof that get some sunlight.

The last pieces to go in were nailing blocks above the ledger for the back of the return and at the bottom edge of the soffit for attaching the rake 20. When you look at the open eave detail you see the rafter tails the blocking and the roof sheathing that extends beyond the exterior wall. 22 in x 3 in galvanized steel eave vent item 2180321 model ev223 1 8. The roof is the most vulnerable part of your home.

Remove blocking between the rafters at the top of the outer garage wall at the lower roof edge. However it may run into frozen snow and ice inside the gutter or on the eave which doesn t receive heat transferred from the living area. First as the photo shows the contractor assumes that when the rafters and blocking shrink they will not shrink beyond the 1 2 inch gap provided between the top of the vertical spacer block and the bottom of the sheathing. Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire.