Insulation in the attic plays a crucial role in determining the source of water intrusion. Wet or mouldy insulation can signal leaks, while dry insulation may indicate that the roof surface has relatively few issues. Checking ventilation systems and ensuring they are functioning correctly can also help minimise the risk of leaks. Overall, a thorough examination of the attic can reveal critical insights into the roof's condition and its susceptibility to water damage.Algae and moss can pose significant threats to tile and slate roofs, leading to potential damage and deterioration over time. These organisms thrive in damp environments and can create a layer that traps moisture against the roof surface. This trapped moisture can weaken the roofing materials, causing tiles to lift or crack. Regular inspections help identify early signs of growth, enabling prompt intervention before further issues develop.