Roof inspections can be expensive. As the number of floors increases, so does the cost. Or at least it did! Now a new technology is enabling home owners, management agents and building contractors to assess the need for more expensive intervention in just minutes rather than the days it previously took. Using drones, or Small Unmanned Surveillance Aircraft (SUSA's) as they are less commonly known, we are able to access, record and highlight areas of concern within just a few minutes of operation. The resulting savings in both cost and time can be substantial, for example a successful inspection negates the need for expensive scaffolding as well as the costs associated with manpower and equipment hire. If problems are found, the information supplied by the drone can effectively identify the locations requiring repair or replacement and the materials and work required to effect the repair. The cost of drone operation is often a fraction of the cost of the remedial work and can save unnecessary work being undertaken. It's a win win situation for the home owner or the managing agent and can help contractors better plan for the work they will need to undertake.
As an example, the damage to the roof in the picture above was found within a few minutes of launching the drone. It shows that a tile has slipped and exposed a roof batten and the interior membrane below it. The roof at this point is completely open to the elements. This building has three stories and a large complex roof structure. Normal access would be by cherry picker or tower scaffold, both adding considerable to the cost of the work. Here, we were able to survey and highlight areas requiring repair / maintenance in just 10 minutes. Both 4K UHD and RAW stills were taken providing incredible detail of every part of the roof structure. This photo shown is a zoom in of the a part of the roof that is very exposed to the wind and elements, hence the damage shown here that has occurred over time. This damage can only increase. By identifying this problem, one of about 6 noted on this large roof, immediate repairs can be undertaken reducing the overall cost of repair to the property owner.