How Damaged was the previous Roof?: You may not have thought of it, but the type and extend of damage on your previous roof can also affect the cost of shingle roof replacement. How, you must be wondering; if the roof had a roof leak that went on unchecked for a while, chances that you have a rot or mold growth underneath the roof. You cannot have a solid roof installed on support structures that have been damaged by water. Since you have to incur additional cost for the new structures, the overall cost for the replacement project will also increase.
The Size and Slope of the Roof: It is obvious that the bigger the roof on your home, the more the cost of shingle roof replacement. However, do you know that the slope of your roof can also affect the roof replacement project? The steeper the slope of your roof, the more difficult it will be for the replacement professionals to move about while replacing the roof. In such a case, the contractors will tell you that your roof is “un-walkable”, hence will require additional safety equipment. This will, in turn increase the overall cost of shingle roof replacement.