Typical Example Of A Rotten Wallplate Photo Of 15 College Row Ystradgynlais Powys. A Lot Of Older Houses Don't Have An Overhang Such As A Soffitt Board, When The Felt Rots On The Bottom Lift The Wall Plate Is Then Exposed Which Rots And Because The Fascia Board Is Attached To The Wall Plate That Detaches Itself Together With The Guttering System.