There are few instances when the roof is best repaired during a storm. An example of this is when a loose edge flashing is flapping that may create greater damage later on. If that could be done without endangering the person doing the repair, further peeling lifting and detaching a roof component or a membrane could be prevented. Repairing during a storm is an exception though, most of the time it is not advisable.
If your home is covered by a warranty from your house builder or roof contractor, there are things that you could do that would not void the warranty. Repairs though has to be limited only to the most urgent and jobs must be for emergency reasons only. If you have a proposal with your previous roofing contractor, it is likely that there are specific items (especially if you insisted on this beforehand) that are covered by the warranty and those that are not. No matter, if the roof need repairing to prevent further damage and the need is urgent, the following repair procedures are be done without risking voiding the warranty.
1. Locate the area that are suspected to be causing the leak or is damaged. As a rule, observe the damage from a distance. If the damage cannot be detected from there, locating the damage from inside the house could be observed too especially for leaks. Inside the house, you can place buckets under the area that is leaking and punch a hole on the leak to relieve the pressure. Oftentimes, the roof is not actually the problem, but the flashing is.
2. When the problem is identified and the storm drain or the flashing is causing the problem, clean the area and remove twigs, leaves and other debris. Clogging causes flooding that in turn causes leaks. Clear the scuppers of debris until the water is free to drain. If the flashing is causing the problem, clear the area and clean it with available house cleaners and wipe it dry with a rubber squeegee and clean cotton cloths. Removing ballasts will give you more room to work with. If the roof is the problem, let professionals repair the roof, warrantee, or none. Loose shingles, protruding roof nails and slippery surfaces are not worth the risk.
3. Some roofing contractors provide their client with materials for emergency flashing repairs. If so, cut a patch from the material provided and extend the patch past the damaged area and then round off the corners. If none was provided, ordinary roof tapes and sealants are usually just as good.
4. Clean the area of the membrane that will receive the patch including the underside of the membrane and wipe it dry with a lint free cloth. Use alcohol or acetone to dampen the cloth.
5. When totally dry, fill the area with the sealant. Press the patch into place and apply firm pressure.
6. Caulk the edges of the patched area.
Repair procedures do not vary even when the roofing contractor used highly specialized materials but then when repairing, choose materials that will create the least amount of damage or are compatible with materials used.
This repair procedure is effective yet temporary. Call your roof contractor, as they will provide you with an approved applicator as soon as weather permits, that will hot weld the patch to achieve a more permanent result.