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A piece of siding is used as sill extension and to provide slope in the opening for the window, which is deeper because exterior rigid foam has been added
Apply self-adhesive flashing over top edge of the wall flashing, diverter, and housewrap
Before installing the windows, the window rough openings are sealed with a liquid-applied flashing that provides a seamless moisture and air barrier to protect the wall from water intrusion.
Clean taping areas and install 3" tape on vertical joint of upper insulation overlapping the horizontal joint
Continuous L-metal flashing integrated with underlayment at roof-wall intersections
Existing wall-to-lower roof transition retrofitted with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding
Existing wall-to-lower roof transition with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding – view from eave
Existing wall-to-lower roof with attic transition with a new strip of fully adhered air control transition membrane, new step flashing, new roof underlayment, and new cladding – view from eave
Flashing at bottom of exterior walls with weep holes included for masonry veneer and weep screed for stucco cladding systems, or equivalent drainage system
Flashing at bottom of exterior walls with weep holes included for masonry veneer and weep screed for stucco cladding systems, or equivalent drainage system
Flashing at bottom of exterior walls with weep holes included for masonry veneer and weep screed for stucco cladding systems, or equivalent drainage system
Furring strips provide drainage gap behind lap siding; screen is added at bottom and top to prevent entry of insects and wildfire embers.
Improper flashing can allow rain water into walls, causing significant damage
Install shingle starter strip then kick-out diverter; attach to roof deck but not sidewall
Place first shingle and next section of sidewall flashing over upper edge of diverter
Plan view of electric box installation in exterior wall showing flashing and air sealing details
Proper flashing around windows is especially important when the rigid foam serves as the drainage plane in the wall
Right - Permeable rigid mineral wool insulation and appropriate water-management flashing details are integrated with new rigid foam siding to keep water away from the sill beam above the foundation wall
Right - Tape flashing keeps moisture out around and below the window; extra tape reinforces the corners to prevent tearing of the house wrap and to keep water out of this critical juncture.
Right – The base of the wall is water proofed and the seam between the base of the wall and the sidewalk is air sealed.
Right – The flashing is properly installed to create a complete drainage system with continuous rigid insulation sheathing/siding
Right – The water-resistant barrier is layered over the step flashing to provide a complete drainage system
Right – There is flashing installed along the top of the window and the water-resistant barrier is layered over to create a complete drainage system
Right – There is flashing installed at the bottom of the wall to create a satisfactory drainage system
Right: Brick veneer is flashed correctly with weep holes and a fine mesh screen is installed to prevent pest entry.
Rigid foam insulation can serve as the drainage plane when all seams are taped. Furring strips provide an air gap behind the cladding.
Section view of electric box installation in exterior wall showing flashing and air sealing details
Step 1. Apply roof underlayment over roof deck and up the sidewall over the rigid foam insulation
Step 2. Install shingle starter strip then kick-out diverter as first piece of step flashing.
Step 3. Place the first shingle and the next section of sidewall flashing over upper edge of diverter
Step 4. Install remaining sidewall flashing, appropriate counter flashing, and shingles
Step 5. Apply self-adhesive flashing over top edge of the wall flashing, diverter, and rigid foam insulation
Step and kick-out flashing at all roof-wall intersections extending ≥ 4 in. on wall surface above roof deck and integrated with drainage plane above