Our UPVC fascia does not require a backing board - they are a straight replacement for old timber fascias, as they are nailed directly onto the rafter feet.These boards are used on both new builds and refurbishment projects, the latter of which is the reason you may hear them be referred to as replacement fascias.Our chartwell green fascia is available in a wide range of widths including 175mm, 200mm, 300mm andamp; 400mm.The return leg on the board is slightly rebated to accept a soffit board.