For a gap of 1 inch or less caulking or sealant is the best method of repair.
Ponding water on rolled roofing porch.
To resolve ponding before it damages the roof determine the cause of the ponding and select the appropriate solution.
The basic theory is that you will build up layers of rolled asphalt roofing to fill in the depression.
Ponding or standing water can occur from insufficient drainage or a number of other reasons.
Use rags or towels to remove any moisture.
If water remains on the roof system after 48 hours consider it an issue that could lead to larger problems requiring costly repairs.
Roofslope is a simple to install cost effective solution to correct ponding water areas.
To do this you first need to make sure that the puddle is completely dry.
One way is to use layers of rolled asphalt roofing.
Persistent leaks can cause these materials to eventually break down or settle creating a place where water can accumulate into stagnate pools.
Fill a caulking gun with a watertight polyurethane or oil based sealant and hold it at an angle to insert the product directly into the gap.
Dry the puddled water with old rags or towels and allow the roof exterior to completely air dry.
Starkweather roofing uses roofslope frequently as an alternative to installing crickets adding drains or widening scuppers.
A less expensive reroofing method called a torch down uses rolled asphalt roofing.
Crushed insulation causing low spots.
Water ponding on the roof will eventually saturate the wood promoting fungal decay and intrusion by insects and leading to leaks.