Sep 01, 2012, 06:35 AMNorthernMD
I am installing Certainteed cedar impressions siding above a horizontal 1X10 Azek trim board. -these will be installed over tyvek house wrap. Is it necessary to install a drip cap between the siding and the azek trim or provide some sort of drainage plane?
Sep 01, 2012, 11:21 AMSparky
If the siding isn't over lapping the trim board, yes you should install a drip cap.