A professional roof installer who is familiar with the type of roofing you have such as a metal roof, spray foam roof or asphalt/gravel roof knows exactly what to look for with each different type of material. Different types of roofs have different materials that the inspector needs to be familiar with because each material has common trouble areas that need inspection so finding a specialist who is familiar with the type of roof you have is important.
The process of inspecting a metal roof:When you have a professional roofer inspecting your metal roof he will walk the entire roof to check for drainage issues, moisture problems, discoloration, leaks, patch breakdown, panel corrosion, flashing problems, loose fasteners and deflected panels. One of the most common leakage areas in a seam fastened metal roofing system is caused by deteriorated panel seams, perimeters and flashings. As panels expand and contract from the temperature differences the sealant used between the panels can become brittle. If you are located in a windy area panel fasteners may be loose or missing and in some windy situations the fastener holes can be stretched out from the panels moving creating gaps that are larger than the sealing washers.
Another problem that a metal roof inspector will look for is the integrity of the fasteners, sometimes fasteners are tightened down too much which may cause them to rust.
Panel fasteners usually have sealing washers that use neoprene which may break down over time due to expansion and contracting or from exposure to ultraviolet rays.
While walking your metal roof the roofing professional may touch the sealant to see if it is still soft and pliable, that fasteners are tight and washers are in good shape.
Since most metal roofs are usually sloped they drain to a gutter system that may be exposed or concealed. The roof inspector will check gutters, drains and downspouts to make sure they are free of debris or blockages such as sticks.
The roof inspection walk through will provide the roof inspector with enough information to determine if the roof has areas that need repair. If he has identified problems with the metal roof that need repair he can then provide you with a cost estimate.
Sprayed Polyurethane Foam (SPF) seals metal roof panels, seams and fasteners thus creating a monolithic water tight sealing of the roof system. The SPF insulates the metal roof and reduces the thermal shock to the roof system. By reducing the expansion and contraction the roof system will perform longer. The energy savings are a bonus and can provide a payback on the cost of the SPF system.
Call Kohls Foam Systems today at 612-708-4111 to see how we can maximize the investment you have in your metal roof!
Kohl's Foam Systems