When it comes to flat roof membranes, most municipalities in the Denver Metro area allow no more than 2 layers. However, there are rules that may require tearing off all previous layers regardless, such as evidence of water damage from water intrusion, resulting in wet base foam.
The more prominently recognized use of this roof type is in commercial buildings. Secondly found in cheaper housing due to average costs of initial build and installation being lower, though that does come with higher ongoing flat roof maintenance costs, and additionally found on homes in arid climates and dryer temperatures. And lastly, for eco-friendly homeowners, flat roofs tend to be a more energy-efficient roofing option which also assists in higher energy cost savings for the home, and additionally can hold more appeal with aesthetics and versatility for features like rooftop gardens.
After installation, the life of a properly maintained flat roof system can last for 15-20 years before needing a roof replacement. A great way to ensure longevity is regular flat roof maintenance, conducting inspections for any minor fixes or repairs.
You can have thermoplastic polyolefin (TPO) single ply roofing membrane, PVC (polyvinyl chloride), which is a different kind of white single-ply membrane, or EPDM (ethylene propylene diene monomer), which is a synthetic rubber roofing membrane.
If you suspect a need for even a minor flat roof repair, act as quickly as possible so it doesn’t progress. Make sure you keep the drains clear, keep leaves and dirt swept off when possible, watch out for overhanging branches that may fall, regularly check for punctures or cracks, and re-apply flat roof coatings every 5-10 years.
For starters, they are typically more affordable, easier to check for damages, easy to clean, and is a more energy efficient roofing option, which means energy cost savings. Additionally, it’s possible to use them for extra space, such as to accommodate an HVAC unit on top of commercial buildings.
The main sign that you need to replace your flat roof is if you begin to experience leaks during heavy downfalls of rain, or if you notice damage to your flat roof membrane.