Please anyone help. I am trying to find anyone who knows how to use Fypon materials. I have a front door surround with and alcove that needs to be trimmed in. Noone around here seems to have a clue on how to do it. I even showed them a picture. Basically its Fypon (Or builders Edge)adjustable pilasters with a door header on top (this is called a front door surround), but hopefully you already know what I am talking about. This is where I lose most of you. The front door is not flush with the house, there is a two foot deep alcove, patio, whatever you want to call it. Currently there is siding on the inside of this alcove. I would like to use some sort of paneling to match the fypon door surround. Does anyone know what this exterior material is called?

thanks