Curved corner sill pan flashing
We have our sill flashing membrane spanning full width at bottom of rough opening (window sill -> interior 2×6 wall).
Some sill/jamb corners were not glued tight (curved up jamb) and there is air leakage coming through this created space.
How best to deal with this?
– Taping the leaky corner tight to inside 2×6 wall doesn’t seem right, and is tricky to get a good seal at that spot (outside corner/inside corner).
– Cutting a slice in the curved corner of membrane, starting about 2 inches from window -> back to interior.. would allow the curve to flatten out.. and I could air seal the leak closer to window with silicone, or other.
– Or should I could cut back the whole flashing membrane.. closer to window. A bit of work at this point.
I don’t believe spanning the full width of rough opening sill with the membrane was necessary . No water should ever make it past the window very far?
The advice from the members of GBA has really helped my get through my project.
I owe you all a cyber beer!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part