I managed to find a place to buy felt in Wakefield, together with more felt nails and some bitumen-type sealer for the felt overlap areas. Despite having had rain showers on and off for most of the morning, a gap in the weather allowed me to complete the re-fit in just over an hour in warm sunshine. After completing the felting, I realised that only one of my original edging fascia boards was free of rot. The two ends were well past being reusable.
In the past, I have always bought my wood locally at the Timbernest in Clayton West. Sadly, the last time I went it was closed for a week, and a couple of weeks after that, it looked like this!
In the end, I remembered Ernshaw's Timber (even more local to me) and they had the wood I needed for about £3. I added two new ends and a further strip along the back:
As soon as I'd finished, it started to rain. The only thing left to do, was paint the ends to match the rest of the shed colour.
Work complete (between rain showers), it should last the winter now - and hopefully, several more years.
The garden area has continued to flourish and it's now a nice place to sit out.