Average Cost to Tear-off and Replace Roof in 2021
The moment you buy a home (new or old), it’s likely that you’ll be required to keep aside a specific amount whenever you feel the need to make regular replacements or repairs. A similar principle applies to a roof that has reached the end of its life cycle. But, what’s the typical cost you’re expected to pay for replacing a roof? Should you do it on your own or call a professional?
The typical cost to tear off and replacement of a roof in the year 2021 is around $5,537 to $9,514. The cost may reach upwards of $16,000 on rare occasions. Nonetheless, the estimates may vary based on the requirements of a homeowner.
Tear-off and replacement of a roof frequently appears like it is a very straightforward process and that it is not that challenging to determine the precise cost of the entire job. For most homeowners, nonetheless, this may not the case. Things such as the size of the roof, types of roofing sheets, pitch, along with the total layers of roofing may have a substantial impact already onto the final cost of new roofing.
Factors that can impact your roof cost:
There are a number of factors which can affect the final cost:
- The height and size of the roof
- The pitch of your roof
- The kind of material selected – wood, asphalt, metal, slate, etc.
- If you’ve chimneys, skylights, & other protrusions within your roof
- The condition of fascia, gutters, & soffits.
- The total layers of shingles that are currently existing in your roof & if they’ll need removal. check best shingle remover here.
Every time you try to get an estimate, for instance, a metal roof cost, you may not get a precise number during the call since the roofer may have to examine the condition of your roof, know its pitch and size, and see what else might be required for example valleys, skylights or dormers.
The above information in regards to your can help roofers come up with a more precise estimate. Know more about roofing tool belts here.
Types of Roofing Sheets:
- Primarily used in agricultural constructions.
- Known to offer better strength.
- Need maintenance every 5 to 10 years.
- Durable and environment-friendly.
- Bitumen Sheets
- Polyester Painted Sheets
- Galvanised Steel Sheet
- PVC Plastisol
2. Metal Roofing Sheets
- Comprise zinc, tin, copper, and aluminium.
- They’re energy-efficient.
- Available in different styles, textures and colors.
- In regards to composition, they’ve considerably limited curves.
Polycarbonate Roofing Sheets
- Mainly used for large-scale structures.
- Known for better strength & insulation properties.
- Manufactured using high impact polypropylene resin.
- Lightweight, and long-lasting.
- Easy setup.
Plastic Roof Sheets:
- Least preferred
- Not as durable.
- Suitable only for garden and other temporary shades.
- Durability depends on what type of plastic you choose.
Calculating Your Roof Area:
In order to get a general idea about average cost to tear off and replace the roof, it’s best to begin by measuring the roof. Whenever possible, this must be undertaken from the ceiling itself, however, if you don’t feel comfortable with climbing all the way up, it may be helpful to get a basic idea in regards to its size from ground level, and also from within your attic.
You can measure your roof using a unit called a square with every square measuring around one hundred square feet. This way, you can replace the roof per square feet. Since the roofing material is also sold on the square, it’s easy to know the total square feet of your roof. Simply divide the number by 100 & take the round number of the closest whole number.
The next measurement is that of slope or pitch of your roof, whereas the 3rd is the total height of your roofing. This includes measuring your roof from where it begins to the top (not to be mistaken with the one from the ground to the top).
Start off by breaking your roof into sections, measure every single one of these separately. Look for the ones that are flat, long, and unbroken. For these, you just have to measure the width and length of every section, then multiply them at once to know the square footage. After measuring each section of your roof, simply add them together to know the final number.
The roofs with numerous dormers and hips, however, for example, Tudors, Colonials, and Capes, it’s best to measure them differently, as a few of these regions might form shapes other than a rectangle.
Among the most typical shapes is a triangle. For finding the square feet of it, measure its base and its height. Then, multiply both of them together. Lastly, divide the number by 2 to find the square footage.
The trapezoid is another common shape. It’s slightly more challenging to measure. Begin by measuring both the parallel sides one by one. Add both of them. Divide the answer by 2, then multiply the number by the height of your trapezoid for getting its area.
On rare occasions, you may see areas which may be rectangle on one side & triangle on the other. Simply measure both the sections separately & add both the answers to get a single number.
In case you already have a dome on the roofing, it’s best to allow roofing contractors to measure the area, since there may be plenty of room for error.
Using a roofing calculator, it’s quite easy to know the entire area of shed-roof or gable of any house as well as accurately determine its cost. The only things you need are the dimensions of the house & your roof pitch. The roofing calculator will carry out the rest of the process for you.
To replace roof per square feet, the prices of shingles may range anywhere from $3.19 to $5.12 of installation in regards to a regular Cape house or Ranch.
Using a Shingle Calculator, you can estimate the total cost of installation on hip roof/gable including things like the materials (with all essential accessories), labor, permits, dump costs, and one layer tear-off.
Step by Step: How to Roof Your House?
Know the building codes and get a permit
Examine your local building code in regards to roofing. Some cities may only need a set number of shingles or a specific type of material. Before you begin, get the required building permit to prevent any unnecessary local penalties you may face.
Gather the required roofing material
Common roofing materials you may require include:
- Roofing Shovel and Hatchet
- Pry Bars
- Hammer Tacker
- Framing Square
- Power Nailers
- Top Tin Snips
- Tool Belts
- Bags for roofing
- Hammers for Roofing
Know which of the above works considering your total budget and property needs. Every single material listed above has varying difficulties in regards to setup. Identify your DIY roofing skill prior to making your choice. Roofing felt shingle-style roofing and metal roofing are quite straight forward for beginners to set up.
Get rid of your old roofing
Feel free to skip this part in case you’re building a fresh property & are ready to construct a roof. Get rid of the fasteners, nails or staples on the old roof using pry bars. Dump the removed material into the shovel. Old roofings with fasteners and screws which are hardened or rusted might require a pry bar to loosen the material within.
Flash Roof Valleys and Drip Molding
Drip molding directs rainwater directly towards the gutter. Carry the chalk line & roofing nails with you. Arrange the drip molds & space every installation nail at around 12″. Use chalk for marking the spaces & start nailing. Nail-down the rooftop valley flashing in an identical way.
Marking your nail spacing
In the case of synthetic roofs like PVC, TPO, EPDM, & metal roofs, nails may be required to fasten them. Just like you went with drip mold, mark the required regions that you want to nail using chalk lines. make a space of around 6″ in between them.
Spread-out the roofing material seams throughout the surface of your roof. Let them overlap by 1/2 inch for creating a watertight hurdle and proceed with the insulation process.
Adhesive helps create a watertight covering on the exposed nails. Besides, the roofing adhesive protects it from harmful weather scenarios which might loosen them.
Letting the roofing adhesive dry
Allow the roof adhesive to dry. Next, see if you can see any unnecessary roofing seams, regions containing cracked adhesive (that require reapplication), loose nails, etc. Lastly, resolve all the potential issues of your roofing installation.
Frequently Asked Questions:
What is roofing labor cost per square?
To replace a roof, you’re expected to pay anywhere around $350 – $550 per square when it comes to asphalt shingles.
For a wood shingle roof, it can range around $637 to $877.
In regards to a metal roof cost with a standing seam, it may touch $900 to $1200 for each square.
The above rates are based on a moderate slope on a ranch-type home.
How long do roofs last?
The average expectancy are as follows:
Wood shake roofs: around 30 years,
Fiber cement shingles: around 25 years
Asphalt shingle rooftops: around 20 years,
What is the average cost to replace roof decking?
Your roofers should charge you solely for the materials utilized and labor required while working. A typical plywood roofing sheathing stretches 4ft. x 8ft. which is around ¼” to ⅝” thick. Based on the thickness of the plywood you use, the price of the job may increase or decrease. So, the thicker the plywood is, the more you’re likely to pay. When it comes to labor, typically you may spend around $70 – $100 per sheet of plywood used.
Which one is better: a metal roof or shingles?
A few minor issues in regards to a metal roof are:
It may get heavy in a few applications, where shingles may turn out to be a better option.
They can be a bit more expensive as compared to shingles although their diversity and longevity mostly neutralize this shortcoming. Homeowners wanting superior protection against rain, wind, and snow may want to consider metal roofs as opposed to shingles. Metal roofs can easily last up to 50 years in most cases.
On the contrary, people with a tight budget can opt for shingles. Also, shingles are easy to recycle and help improve the aesthetics of your house.
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