Silly (Flashing) Question?

[Carl A. Brown]

R703.8 Flashing.Approved corrosion-resistive flashing shall
be provided in the exterior wall envelope in such a manner as
to prevent entry of water into the wall cavity or penetration of
water to the building structural framing components. The
flashing shall extend to the surface of the exterior wall finish
and shall be installed to prevent water from reentering the ex-
terior wall envelope. Approved corrosion-resistant flashings
shall be installed at all of the following locations:
1. At top of all exterior window and door openings in such
a manner as to be leakproof, except that self-flashing
windows having a continuous lap of not less than11/8
inches (28 mm) over the sheathing material around the
perimeter of the opening, including corners, do not re-
quire additional flashing; jamb flashing may also be
omitted when specifically approved by the building of-
ficial.
2. At the intersection of chimneys or other masonry
constructionwith frameor stuccowalls,with projecting
lips on both sides under stucco copings.
3. Under and at the ends of masonry, wood or metal cop-
ings and sills.
4. Continuously above all projecting wood trim.
5. Where exterior porches, decks or stairs attach to a wall
or floor assembly of wood-frame construction.
6. At wall and roof intersections.
7. At built-in gutters.

[Marcel R. Cyr]

Here is a rainscreen for a cedar clapboard installation.

Attachment 17999

Attachment 18000

Attachment 18001

http://www.wrcla.org/pdf/WRCLA_Installing_Siding.pdf

Marcel