I plan to trim the outside of my new windows with brick mold. I watched several videos and they all show applying it flush to the window frame and this is how my old 40 year old windows are. I just found in the fine print of the window directions that they say to leave a 1/4" gap all the way around for siding and 1/2" for brick (for expansion).


So me trying to get ahead of things precut the molding for a pretty tight fit. Not the worse thing if I need to buy more brick mold but wondering is this 1/4" gap necessary?

(I'm having the house re-sided next so maybe have the contractor provide the 1/4" clearance?)


Thanks