Having ventilation in the roof void is a requirement for building regulations approval. Fitting ventilated soffits is the typical way that this roof ventilation is achieved. If you do not have roof ventilation, you may find that your roof void has problems with condensation or overheating.
The large town of Telford is situated in Shropshire, with a populace of just over 160,000. It's hands down the most significant town within the county and actually among the fastest growing towns in the United Kingdom. The region was only established in the '60 and '70s as a brand new town on industrial and agricultural land. Ensure that you employ reputable tradespeople in Telford to keep your home up-to-date.