Flat Roof Depression

Orient the spade at a 30 to 40 degree angle to the roof and start thrusting a spot in the middle of the roof.

Flat roof depression.

The insulation could be compressed. By their very nature flat roofs do not completely drain after it rains. How to fix ponding on a flat roof depends on the cause of the ponding. The sub roof is sturdy with no soft places the depression is only about 1 1 1 2 inches below grade in an area of about 8x10 feet.

That is something to address when it s time to re roof dyck says. Remove the plies of the flat roof by thrusting into them with a spade. How to fix water puddling on a flat roof. It may also void your warranty.

In the photo below the impact depression is accompanied by a small hole. The roof is built up with a cap of roll roofing about 10 years old in fairly good. Flat roofs by their very nature will collect some water when it rains. Tile is designed for sloping roofs and will not adequately move water from the problem spot.

However excessive ponding threatens your roof. The roof deck s structural members could be weakened rusted if metal or broken if wood. They can also be semi recessed with a constructed wood or sod roof standing out. Plies are the layers of felts fabrics and mats that make up roofs.

I would like to build it up myself to drain properly. Again these are repairs to stop roof leaks that may originate in the depressed area but not intended to remove the depression. Never use tile to fill low spots in flat roofs. So if your flat roof is collecting water that doesn t drain or evaporate within 48 hours you will need to fix it.

However puddles 1 or more inches deep that linger for days can indicate a. Dugouts can be fully recessed into the earth with a flat roof covered by ground or dug into a hillside. My flat roof has a low place that accumulates standing water after a rain. The appearance of puddles on the roof could also be caused by drainage problems so make sure outlets are cleared and drainage systems are functional.

The cause of the depression matters less than your plan to repair it. Roof impact when a heavy object such as a tree branch drops on the roof it will cause a depression in the area and likely some structural damage to sheathing and roof trusses or rafters underneath. A depression in your low slope roof will thanks to gravity collect water after any precipitation.