Flat-roof rot is a common problem that can cause serious damage to the roof structure if it is not addressed in a timely manner. This type of rot is caused by moisture getting trapped in the roofing material and then gradually deteriorating it over time. There are three main signs of flat-roof rot that homeowners should be aware of so they can take proactive steps to prevent further damage from occurring.
Cracking or Splitting
Cracking or splitting on a flat roof can be an indication that the roofing material has begun to deteriorate due to moisture buildup. This type of damage usually occurs when there is inadequate ventilation, inadequate drainage, or gaps in the sealant around flashings and other penetrations. The most common types of cracks that can occur on a flat roof are horizontal cracking, vertical cracking, alligator cracking, and blisters caused by trapped moisture between layers of asphalt shingle material. To prevent this type of damage from happening, homeowners should ensure their roofs have adequate ventilation and drainage, as well as properly sealed flashings and penetrations. They should also inspect their roofs regularly for any signs of cracking or splitting, so they can take action before further deterioration occurs.
Ponding water is another sign of potential flat-roof rot. This occurs when water collects on a flat roof surface due to poor drainage or insufficient slope, causing standing water rather than runoff into gutters or downspouts. When ponding water remains on the roof for extended periods of time, it can cause deterioration of the underlying materials, leading to rot and other structural damage. Homeowners should check their roofs regularly for signs of ponding water and take steps such as improving drainage with additional sloping or installing guttering systems if necessary.
Blistering or Bubbling
Blistering and bubbling on a flat roof surface can be an indicator that something is amiss underneath. These blisters are often the result of moisture trapped between layers of asphalt shingle material. However, they can also happen due to improper installation techniques, such as incorrect nailing patterns or not having enough nails per shingle course. In addition, inadequate ventilation can also cause blistering and bubbling. It is important to identify these issues and to have them resolved quickly to prevent further roof damage.
In conclusion, there are three primary signs of flat-roof rot that homeowners need to be mindful of: cracking or splitting, ponding water, and blistering or bubbling on the surface. Homeowners can take proactive steps such as ensuring adequate ventilation, proper drainage, sealing flashings or penetrations, and using the correct installation techniques to reduce the risk of developing this type of rot. Additionally, regular roof inspections should be carried out to identify any potential problems before they become more significant. By following these steps, homeowners can help ensure that their roofs remain free from rot and in good condition for many years to come.
For more information on signs you need flat roof repair, contact a company near you.