Cost to Reroof a House
Chances are, your roof structure was designed for a dead load of one layer of shingles, plus extra for snow and a safety margin. Installing new roof shingles over old effectively doubles the weight of the roofing, so you have to make sure your roof structure can handle the extra load. That’s also why building codes commonly limit re-roofing to no more than two layers. On some houses, the extra weight of multiple layer causes the roof sheathing (decking) to sag between the rafters or trusses.
The number of bundles or squares you need will depend on the surface area of your roof, and its pitch or slope. For example, a 2,000-square foot roof will Commercial Roofing Brisbane require 20 squares or 60 bundles. A professional will likely purchase slightly more materials than necessary to ensure there is extra material if needed.
Roofing materials alone cost anywhere from$100 per square to $1,000 per square, depending on the type you choose. For an average roof of 17 squares (according to the United States Census, which puts average home size at 2,200 square feet and two stories), roofing materials typically range from $2,500 to $25,000. The best way to re-shingle is by hiring a roofing professional for the job. When seeking a pro, do a thorough check of his or her credentials.
VIDEO Q&A: Bo Lacey Construction
Ice and water shield comes in rolls with adhesive on the back. I usually only run it under the valley area and at the end of the roof where ice dams can form to prevent the water from seeping under the shingles and paper. It usually comes in 3 or 4 foot wide rolls and you need to measure off how many feet you will need based on layers and how far up the roof you are applying it.
The removal of an old roof can cost $1 to $5per square foot. Some contractors charge hourly, which can run from$40 to $80per hour. Also, if you have rotting timbers or need new supports for a heavier material, you can expect to pay an extra$1,000 to $10,000, depending on what sort of repair or reinforcement it requires.
Now that you’re aware of the price differences between shingle materials, you will need to determine the number of squares to purchase for your roof. To do this, measure the total square footage of your roof, and it’s pitch. To learn about measuring pitch and calculating the amount of shingles needed, use our Roof Shingle Estimator. Shingles are installed in an overlapping fashion to provide complete protection for the plywood, vapor barrier and other materials beneath.
Roofing Labor Cost per Square or Square Foot
This type of roofing is a traditional building material that has been used on residences for hundreds of years. This material is popular because it is effective, attractive and, to some extent, can be repaired in pieces without replacing an entire roof.
Check for a license, bond, insurance, and warranty of work. Meet with him or her in person to discuss your roof. If possible, hire a roofer with experience installing your preferred material. Having a contract in place will help reduce the risk of miscommunications and will also help ensure that your experience with the pro is a positive one.
Know how roofers charge and how much roofing materials cost so you can negotiate the best deal. Good-quality composite shingles can weigh 350 to 450 pounds per “square” (100 square feet of roofing, installed).
What I learned is that the big companies are usually untrustworthy where as small buisnesses a fair and trustworthy shop around my friends. While the costs listed above cover basic roofing materials supplied by any roofing contractor, not all roofers deliver reliable performance. Finding a solid contractor means considering several factors.