If you want to get an idea of what it might cost to replace your entire roof before you call the experts in, there are a few things you need to take into account. First, you need to consider the size and shape of your roof. If your roof has a steep pitch or multiple levels, the price of replacement will be higher than flat roofs or one with a lower slope. The size of your roof also affects the roof replacement cost. The more square feet you have to cover, the more it'll cost to replace it.
Another major factor affecting your cost is the roofing materials you decide to use. Asphalt shingles are typically the most affordable shingle type to use.
If you decide to use other roofing materials like metal roofing, concrete tile, shay tile, cedar shakes, slate shingles, or another premium roofing material, your costs will go up. As an example, let's figure out how much it could cost to replace a roof on a square foot house.
Your replacement cost depends primarily on two things: the company that installs it and the material you choose to use. For example, here are the costs of other popular materials:. After paying for materials, you have to add in other expenses roofing contractors will charge for like labor costs and the cost of materials needed for the roof installation.
There are other factors that will affect the cost of your roofing project that is often overlooked. And unfortunately, water damage often isn't noticed until the roofers have removed your old roof.
And if you were just doing a repair, water damage can change a repair to a complete replacement. Underlayment is a code requirement, so be sure your contractor plans to install it. A quality ice and water barrier will work with your roof. Certain formulations are designed to be flexible and adhere to your roof. The ice and water barrier provides an extra protection outside the shingles to keep water from seeping underneath.
Ask your contractor about their process for applying this to make sure your home will be protected. Starter shingles are another piece of the roofing process necessary to keep your roof free from water. They go below the main shingle and protect the seams from water, directing water off the roof instead of letting it sit and enter your home.
Starter shingles are required for all manufacturer warranty claims, but they are a common product cut by contractors when trying to save time and money. Like all areas of your home, your roof needs ventilation for proper airflow. Without necessary ventilation, hot air has no way to leave your attic, resulting in issues with mold and rotting materials.
Ventilation will prolong the life of your roof and help with energy efficiency in your home. Be aware many unscrupulous contractors will not replace these items to lower their estimates. Roof flashing is a way to seal joints and other vulnerable areas so that water does not become trapped. Flashing is often used around the area where the shingles meet the chimney.
Roof flashing is a common item not included in many estimates, as it often requires removal of some siding or cutting back current wood or cement board siding. This is an extremely important area to be aware of, so find out how your roofing company or contractor plans to handle your roof flashing. If you experienced a storm which caused roof damage, but you did not take action immediately, your roof may have plywood damage where shingles were ripped off.
You might think plywood will not add a huge expense to your roof, but hurricanes, severity of seasonal storms and simple inflation plus, forest fires two to three years ago are still impacting the availability of lumber for plywood. This may save you from shelling out even more money. Complex roof designs can complicate and increase the price of a new roof as well. Larger companies may want to develop a form with the help of a graphic designer, which can help their bid stand out.
Those who are just starting can rely on free roofing bid forms available online. When choosing a template, remember that it needs to be clear to homeowners. Plus, you can highlight the most important parts, such as the deposit information and final price. IKO offers more information for roofing professionals, including how to generate more leads , handle negative reviews or start your own roofing business. All rights reserved. The information on this website is subject to change without notice.
IKO assumes no responsibility for errors that may appear on this website. IKO strives to accurately reproduce the screen images of the shingle swatches and house photos shown. However, due to manufacturing variances, the limitations of your monitor resolution and the variation in natural exterior lighting, actual colors may vary from the images you see.
To ensure complete satisfaction you should make final color selections from several full size shingles and view a sample of the product installed on a home. Please refer to our Legal Notices for U. Location set to view all.
Show All Products. Step One : While on the ground, measure the exterior of the home. From your ground measurements, you found it has a width of 32 feet and a length of 64 feet. Its area is therefore 2, square feet. As three shingle bundles are usually meant to cover a square , this calculation is very useful.
Our example home has You need to account for the pitch in order to have an accurate materials estimate. Start at the edge of the roof and measure out 12 feet. Step Four: Now measure upwards at a degree angle to capture how much the roof rose over that length.
That means its pitch is Step Five : A roof with this pitch would use roughly 25 percent more shingles than flat roofs. That would give this roof Step Six: Round up to Step Seven: Once you have your final square amount, you need to account for waste.
Approximately 10 to 15 percent of your shingles will be wasted. Inspecting the Roof Even if a homeowner is directing you to a specific area of the roof where they believe there is a leak, you should thoroughly inspect the whole roof.
When inspecting the roof, write down the following: Any areas of damage. The condition of the shingles. The number, condition and length of eaves. The number, condition and length of valleys. The length and condition of hips and ridges. The availability of the roofing business may also come into play, depending on how quickly you want the work completed.
It is often the case that the most popular businesses will be booked some time in advance, so it's worth getting quotes in, in good time.
Any decent trader will be happy to talk you through the options. Once you've decided which roofing contractor best meets your needs, you need to discuss and agree with them:. It's always a good idea to set this down in a written contract - it doesn't need to be complicated, just record what you agree and both sign it.
Then you have a record of how you expect the work to proceed, which should protect both you and the trader. This should be standard on all larger jobs, but is recommended even for smaller repairs.
Most reputable builders will issue a contract as standard before starting work in any case. You, as the customer, should establish whether planning permission will be required, although your roofer may well be able to advise you. Before your roofer starts work, you should ask to see evidence of appropriate insurance, including public liability and working at heights.
If your job involves a new roof, or a major refurbishment of an existing roof, you should ask for a guarantee. Use Which? Trusted Traders to find a roofer near you who has passed our checks. You should agree a schedule for payments in advance of work starting. The final instalment should only be paid when you are satisfied with the work and have received all necessary paperwork relating to it.
Cost guide: roofers Our Which? In this article How much do roofers charge Cost to repair a roof New and roof replacement costs Roof repair vs a new roof Roof problems you should look out for When should I call in a roofer? How to keep the roofing costs down How to find a good roofer Getting roofing quotes Hiring a roofer checklist When to pay a roofer.
How much do roofers charge Many roofers charge by the hour, and often more for the first hour, particularly if they have had to travel from further afield. Cost to repair a roof Our table below shows how much it costs to get various roofing repairs done - cleaning gutters, replace standard tiles, and replace ridge tiles.
Job Details Typical cost Clean gutters Clear out all gutters at front and back of property. New and roof replacement costs Our new and replacement costs cover getting a new tiled roof, and a new flat roof using felt or other materials. Job Details Typical cost New tiled roof Replacing entire roof on an average three-bedroom house. Slate and tiled roofs Internal damp, staining on walls and ceilings or leaks: this may signal a cracked or slipped tile.
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