Diagram showing proper roofing techniques.

So you need a new roof and are trying to decide whether or not to try and save some money by having the new roof installed over an existing layer of roofing. This technique is quite common in many areas and many roofing contractors don’t see any problem with this method and have no problem trying to sell homeowners on a lay-over or go-over as this technique is called. They are wrong.

5 Top Reasons A Lay-Over Or Go-Over Is A Bad Idea When Re-Roofing

1.) Areas that have or had leaks can’t always be addressed properly

There is a good chance that your old roof had some problem areas including possible leak spots, whether you noticed them or not. Without tearing off the old roof and properly identifying these types of trouble spots and determining where the leak was coming from and traveling to it is impossible to tell what areas of your roof may need some special attention. (more…)