Pamela, there are a lot of window replacement options on the market. It's important to have a window which is designed for your region in the U.S. here is a chart by energy star which contains this in ... read more
I would say your best bet is to shingle over the vents and edge the vents at eaves. This way you are able to allow for intake and continuous ridge vent for exhaust. Hope this helps!
Er ... read more