Mastic is a flexible sealant that adheres to almost any material.
Flat roof fix ponding area.
Identify the low spots or areas where ponding occurs by water stains on the roof coating mud or concentrated debris.
2 put on work.
Use the utility knife to cut a 12 inch diameter circular patch out of the rolled asphalt roofing.
Access the flat or low slope roof using an extension ladder.
How to fix ponding on a flat roof depends on the cause of the ponding.
Give the drains some tlc.
However excessive ponding threatens your roof.
Many homeowners now prefer using silicon coating for their flat roofs because of its appealing aesthetics and solid protection from leaks.
After any rainfall lands on a flat roof water will begin to pool.
Flat roofs by their very nature will collect some water when it rains.
You can also use a general epoxy concrete filler and apply mastic on top using a trowel.
On a performing flat roof ponding water is not a problem as it will drain or even evaporate away.
A variety of liquid patching materials are appropriate for fixing low spots on flat roofs.
A problem area on your roof that is prone to ponding does not have to be a constant issue for you a licensed roofer can fix the pool s of water on your roof and can also ensure that you don t experience further ponding issues.
However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate.
Check around drain areas for roof debris or roof patching materials that may be blocking drain exits and remove them.
On granulated roofs remove all loose mineral granules as they trap moisture.
Greenslope is a roof leveling compound designed to facilitate positive drainage of standing water on flat rooftops.
Refer all other ponding problems that you wish permanently fixed to a qualified roofing contractor.
Silicone coatings won t chip away over time.
Common problems caused by flat roof ponding.
Apply a thin coating of roofing cement to the entire bottom of the roofing patch all the way to.
It may also void your warranty.
So if your flat roof is collecting water that doesn t drain or evaporate within 48 hours you will need to fix it.
Roof patch putty can be applied using a trowel to fill low areas.