In normal conditions metal roofs are very durable. However, at times metal roof repairs need to be carried out. Conducted properly, repairs can outlast the roof they have been applied to. Not done properly and the repairs will need to be carried out again shortly after the original repairs. Adverse weather conditions, corrosion, and continual expansion and contraction of metal roofs can cause unexpected damage to the normally durable roofing material.
Repairs to metal roofs can be one of the more difficult to carry out. Due to the expanding and contracting nature of metals roofs, more stress is placed on the repaired area causing cracking or splitting. Normally a metal roof will be repaired at the spot where the leak is. If there are multiple leaks in the same sheet then it maybe easier (and cheaper) to replace the entire sheet.
If a patch of the metal roof is being replaced then the material used (if possible) is from the same supplier as the original roof so that the patch does not stand out too much. For metal roofing, leaks normally develop at the seams or where the roofing joins flashing and guttering. These repairs are carried out by cleaning the areas affected and resealing. Other items used in the repair process include a urethane sealant that has been matched as closely to the colour of the metals as possible, paint that has been colour matched and pan head screws.
As always we recommend contacting your roofing professional if you have any concerns with your roof. Our team is always happy to come inspect your roof and provide you with advice.