The insulation could be compressed.
Flat roof depression.
Plies are the layers of felts fabrics and mats that make up roofs.
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.
In the photo below the impact depression is accompanied by a small hole.
By their very nature flat roofs do not completely drain after it rains.
Your building could have settled.
How to fix water puddling on a flat roof.
So if your flat roof is collecting water that doesn t drain or evaporate within 48 hours you will need to fix it.
The roof deck s structural members could be weakened rusted if metal or broken if wood.
I would like to build it up myself to drain properly.
It may also void your warranty.
The roof is built up with a cap of roll roofing about 10 years old in fairly good.
Again these are repairs to stop roof leaks that may originate in the depressed area but not intended to remove the depression.
Dugouts can be fully recessed into the earth with a flat roof covered by ground or dug into a hillside.
Orient the spade at a 30 to 40 degree angle to the roof and start thrusting a spot in the middle of the roof.
However excessive ponding threatens your roof.
A depression in your low slope roof will thanks to gravity collect water after any precipitation.
Flat roofs by their very nature will collect some water when it rains.
The cause of the depression matters less than your plan to repair it.
A dugout or dug out also known as a pit house or earth lodge is a shelter for humans or domesticated animals and livestock based on a hole or depression dug into the ground.
Always stand on a firm section of the roof and wear long pants long sleeves and safety glasses.
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.
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.
How to fix ponding on a flat roof depends on the cause of the ponding.
Never use tile to fill low spots in flat roofs.
However puddles 1 or more inches deep that linger for days can indicate a.
My flat roof has a low place that accumulates standing water after a rain.