Flat Roof Inspection Checklist for Homeowners

You don't need to climb onto your roof to carry out a useful inspection. Most early warning signs can be spotted from the ground, from an upstairs window, or from a ladder at the edge. Catching problems early is always cheaper than dealing with them after they've caused water damage.

From the Ground or Window

• Are gutters and downpipes overflowing? Could indicate a blocked drain outlet
• Is there any visible sagging or unevenness in the roof surface?
• Can you see any obvious splits, tears, or blistering from window level?
• Is there moss or significant debris on the surface?
• Are fascias and barge boards in good condition?

Inside the Building

• Any new water staining or damp patches on ceilings below the flat roof?
• Any musty smells suggesting damp in the roof space?
• Any visible mould growth on walls or ceilings?

At the Roof Edge (From a Ladder)

• Is the edge trim/drip edge secure and undamaged?
• Are gutters clean and free-flowing?
• Is the membrane visible at the edge and does it look intact?
• Are flashings at any abutting walls in good condition?

When to Call a Professional

If you spot anything in the above checks that concerns you, or if your flat roof is more than 10 years old and hasn't been professionally inspected, it's worth arranging a survey. We offer free roof surveys with no obligation.