The cost of a new roof system can vary depending on the type of shingles you choose. The standard shingles which are a 25 year rating are less expensive than a Timberline shingle. The tar paper that you select can also cause the price of your roof to be elevated. There are different grades of felt paper that is installed onto your substrate prior to shingle installation. Your roofing contractor may recommend you have the GAF weather guard barrier system installed into your valleys, chimney, and wall lines. This additional material and labor will also increase the price of your new roof system. The ventilation system may need to be upgraded on your home. Hopefully, the company that you are dealing with will install the horizontal Ridge vent louver system. This is the best product for roof ventilation in the roofing industry. The cost for the replacement of damaged or rotten decking should be taken into consideration as well. A home that has roof leaks is likely to have rotten or damaged wood below the roof line. The carpentry work can become quite expensive so it is very important for you and your roofing contractor to agree on a price prior to the commencement of the project. (more…)