Sealing Exterior Window Trim
Last year all IGUs in a bow window were replaced and the large pieces of trim around the whole window were stripped of paint or replaced (wide trim to each side is a false column, see attached “True Divided Lite Window”). Some joints were sealed with sealant, others with paint (is that even considered sealing?), and some weren’t (see the attachments showing the bottom of the “columns” and showing the trim stack-up under the IGUs. In another thread some of us are close to determining how to seal or seal and drain the glazing pockets. Please help me here to know which joints of the big trim surrounding the window should be sealed with what.
I see trim on or next to trim (a continuous flat face) with the crack between them; trim with trim behind or above it – the crack is at the 90; and trim on concrete. These close-ups showing old caulk etc. are after the rehab, which is why I ask you, not my contractor to please choose from the multiple choice (or add your own)…
The crack between two pieces of trim forming a continuous face should be… (left open, painted over, sealed with ____).
The crack between trim forming a 90 with trim in back of it or above it should be… (left open, painted over, sealed with ____).
Trim to concrete should be… (left open, painted over, sealed with ____).
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