Fastening window trim around innie windows
How do you fasten prefabricated trim around an innie window? If I prefabricate a window trim out of vinyl or fiber cement with a 1 x 3 extension and 1×4 trim piece that lays flat on the exterior wall and fit it around the window, how should the trim be nailed or screwed to the wall without compromising the WRB? Should I apply the exterior insulation and rain screen first and them screw or nail the trim to the rain screen? I can hold the insulation back from the window 3/4″ to fit the extension jamb against the sheathing and caulk it to the window. Thanks for anyone’s help.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part