Fascias and guttering
Fascias and guttering protect your property from the effects of water, specifically rain, by keeping it away from the sensitive and porous brick and timber sections.
If you have broken guttering then you'll notice a number of effects, including damp patches, constant dripping and pooling water under blocked guttering sections.
The fascia should keep damp and all wetness away from the main structure of the house. A failure to do so can result in wet rot and general structural problems.