There are many aspects of repairing a roof of which a home owner needs to be aware and often it's not a simple shingle problem that must be repaired on a roof but something like a vent pipe that has developed a leak due to a loss of metal flashing holding the pipe in place. It shouldn't need to be said that ensuring the stability of a roof pipe should be of the utmost importance because leaving such a component in a substandard level of operation can impact more than just a small part of the roof and may lead to further problems down the line.