Why its best to fully replace timber fascia boards?
All timber fascia boards will hold some degree of moisture. Capping over the timber fascia boards will seal in the moisture leading to rot. Manufacturers of UPVS fascia and soffit boards as well as many installers offer guarantees on the products. In most cased the guarantee will cover the materials – not the structure the boards are fixed to. Ensuring the UPVC products are fixed to a sound structure is vital. On many properties the existing fascia and soffit boards are only a few millimetres above the windows. Capping over the boards could cause the opening windows to hit the new boards – a windows that can’t fully open could prove to be fatal in the event of a house fire.