Timber rots when its moisture content is over 23% and your fascias are no exception. The worst cases are when there are 9mm thick PVCu capping boards fastened over the existing timber fascias. Sold as a cost effective alternative to full replacement fascias the boards can give a home a totally fresh new look.
The problems occur when the timber behind it starts to rot unseen due to the leaking, damaged felt. The PVCu boards prevent the timber from drying out thus exacerbating the rot. The first the customer knows of the problem is when the PVCu comes loose from the rotten timber. In many cases all the fascias have to be completely replaced.

This is why we recommend the Eaves Protection system for your roofline. The flexible plastic sheets are fitted underneath the existing felt and have a shaped lip that drops into the gutter. Even if water is still penetrating the tiles the Eaves Protector makes sure the felt is supported and the water runs off into the gutter preventing any moisture reaching the fascias or soffits.
This product will add many years to the lifespan of your fascias, keep them cleaner for longer and save you money.