How Much Does Torch-Down Roofing Cost in 2024?

Torch-down roofing is an advanced alternative to other multilayer systems. Its composition (bitumen + rubber/plastic) makes it heat- and cold-resistant while keeping its waterproofing abilities high. It is ideal for flat-roofed houses in rainy climates. The torch-down roofing cost varies based on the chosen system. Keep reading to determine the budget you need.

Torch-Down Roofing Cost

American homeowners pay between $4,400 and $15,000 for a torch-down roofing project, while the average bill is about $10,700. At a minimum, you can spend $2,500, but with many price-raising factors, this amount can reach $25,800.

National average cost	$10,700
Low-end cost	$2,500
High-end cost	$25,800
Average price range	$4,400 - $15,000

Torch-Down Roof Cost per Square Foot

The contractor always finalizes the quote based on the square footage of the roof to ensure transparency. Therefore, when using the torch-down roofing cost calculator,  it is more reasonable to focus on the cost per square foot, which ranges from $4 to $7,50 in such a project. How much can you pay for labor and materials separately? The torch-down roofing labor cost falls between $2,15 and $4,50, while the expected material price ranges from $1 to $2 per square foot.

Materials cost per sq. ft.	$1 - $2
Labor cost per sq. ft.	$2,15 - $4,50
Average cost per sq. ft.	$4 - $7.50

Torch-Down Roofing Price per Roll

If you want to determine the average market price of the torch-down roofing membrane, you can stop by some brick-and-mortar hardware stores or online shops. Usually, it is sold in rolls, each covering about 100 square feet. The torch-down roofing price per roll ranges from $99 to $200 per material alone. If you get hold of a contractor, you can pay anywhere from $340 to $720 per roll installed. 

Price range per roll for the material alone	$99 - $200
Price range per roll installed	$340 - $720

Torch-Down Roofing Cost by Size

If you know the approximate size of your roof and the average cost of each square foot, you can estimate how much your project could cost using the table below.

Roof square footage	Average cost
1.000	$4,000 - $7,500
1.200	$4,800 - $9,000
1.500	$6,000 - $1,250
1.700	$6,800 - $12,750
2.000	$8,000 - $15,000
2.500	$10,000 - $18,750
3.000	$12,000 - $22,500
3.500	$14,000 - $26,250

Torch-Down Roof Cost Factors

As you can note above, the price range for such a roofing project is extensive. It is explained by the fact that the price is formed considering many factors. While only a professional contractor can provide an accurate quote, you can still research and consider these factors when budgeting.

Location

Torch-down roll roofing prices range from $360 to $720 per installed roll. This two-fold difference largely depends on the region where you live. And there are some reasons for that:

• If, in one region, materials can be bought at any nearby store, then in another, they are scarce and more difficult to get, which increases their cost.
• If you cannot find materials in your area, you will pay for their transportation and delivery, adding to the final cost.
• The high cost of living and the level of average wages in some states are forcing contractors to raise their rates.
• Since torch-down roll roofing is only suitable for flat roofs, the cost will be lower if such tops are standard in your area because high demand makes prices more competitive.

Season

When planning your roofing project, it's essential to understand when you're going to start, as the season can affect the final cost. For example, summer as a vacation time allows homeowners to focus more on purchasing materials and supervising construction work. As a result, the demand for roofers' services can grow along with the torch-down roofing labor cost. 

In contrast, late autumn or winter, together with low temperatures and frequent precipitation in some regions, reduces the excitement around the installation of roofs. Also, with a low number of off-season clients, some contractors even offer discounts on their services, which means you can jump in on a good deal.

Number of Roof Layers

​​If you consider this roofing for your home, you will have to choose between its 2-layer and 3-layer versions. And this difference in one layer significantly affects the final price for materials. In particular, if the 2-layer torch-down roofing costs $110 - $160 per square (i.e., 100 square feet), the 3-layer alternative only starts at $170 and can go up to as much as $550 per square. 

This impressive spread in price has two main reasons. First, this third layer provides you with reliable protection against roof punctures and leaks. Thus, it will save your nerves and money on torch-down roof repairs in the future. Second, its anti-damage properties prolong the life of the roof. In comparison, a 2-layer roof usually lasts up to 15 years, while its 3-layer alternative can last you 20-25 years.

2-layer roofing	$110 - $160 per square (materials only)
3-layer roofing	$170 - $550 per square (materials only)

Materials

The central component of this roofing is modified bitumen or, in other words, asphalt modified with styrene-butadiene-styrene or atactic polypropylene polymers. These polymers have different functions. If SBS is responsible for the elasticity of roofing, APP provides its resistance to ultraviolet rays. Depending on the selected polymer, the price will differ. 

Besides, some manufacturers cover the surface of torch-down roofing with special granules. In addition to extra protection against UV radiation, they also provide fire resistance. Therefore, applying these granules also increases the cost of the roofing.

Durability and Energy Efficiency

The longevity of a roof primarily depends on the quality of the installed materials. High-grade options are produced according to industry standards and are much more resistant to external influences. In addition, they are less likely to crack, split, and leak water. However, high quality can be costly. Therefore, you need to decide whether you want to save money initially or save on future investments in repair or even replacement. To make a data-driven decision, you can use a torch-down roofing cost calculator to compare prices.

The quality of a torch-down membrane also affects the roof's energy efficiency. Those that come with a reflective coating allow for lowering the workload of the air conditioning systems and optimizing energy costs. To save even more on utilities, you can further invest in roof insulation. 

Brand

Pay attention not only to the price but also to the reputation, reviews, after-sales service, and warranties when comparing roofing manufacturers. For example, if the price of materials is much lower than the average market value, this may indicate their low quality. Therefore, it is more reliable to trust the manufacturer who has proven its products among consumers. So, how much does a torch-down roof cost based on the brand?

Brand	Average cost per sq. ft (materials only)
Polyglass	$0.95 - $1.60
Texas Refinery Corporation	$0.65 - $1.25
Firestone Building Products	$0.95 - $2.00
Johns Manville Roofing Systems	$1.15 - $1.60

The Labor Cost to Install a Torch-Down Roof

This roofing is unsuitable for do-it-yourself installation primarily because the process is quite dangerous. In particular, the contractor melts the bitumen using a torch with an open flame, which is why this roofing is also called “torch-on”. The process requires increased precautions, not to mention experience and skills. That's why installing torch-on roofing costs up to $4 per square foot and makes up about 60% of the total cost.

Just as importantly, many brands provide warranty coverage for materials only if a certified roofer installs them. If this requirement is violated, the warranty will be void. Therefore, hiring a professional contractor guarantees both the installation quality and your peace of mind.

With MyHomeQuote, you can find local licensed contractors specializing in torch-down roofing and hire a pro whose rates fit your budget. Fill out the request form below to start your journey to professional roofing services.

Other Factors Affecting the Installation Cost of a Torch-Down Roof

In most cases, roofing work comes with some additional expenses. For example, your hired roofer may determine that the underlay needs to be replaced or tell you that work can only start with special permits. Therefore, consider putting an additional amount in the budget.

Pricing factor	Average cost
Getting permits	$150 - $500
Conducting a professional inspection	$100 - $400
Repair the existing roof	$300 - $1,250
Old roof removal & disposal	$1.500 - $2,500
Underlayment replacement	$660 - $1,425
Roof vents installation	$200 - $700
Roof warranty	$500 - $2,000

Getting Permits

In fact, this is another location-related factor, as roofing permits are only required in some municipalities. However, your insurance company may also insist on obtaining them, as compliance with local building codes is sometimes a fundamental condition for coverage. Either way, expect the overall torch-down roofing cost to increase by $150 - $500 for these permits.

Conducting a Professional Inspection

First, a hired contractor can inspect the roof to understand its condition/features/problems before the roofing is installed. In addition, inspections may be part of the permitting process. In this case, the inspector monitors the roof installation at different stages. The cost of each inspection varies from $100 to $400.

Repair the Existing Roof

Torch-down roofing is only suitable for flat roofs with inherent problems. In particular, they cannot quickly discharge water due to an almost gentle slope. As a result, the accumulated water forms a ponding on the surface, and you may experience leaks. If this happens, the problem must be fixed before the roofing is installed, and this repair can cost you $300 - $1.250.

Old Roof Removal & Disposal

While it is possible to layer new roofing over an existing roof, it does come with some risks. First, it adds weight to the structure and may exceed its load-bearing capacity. Besides, any unevenness in the old surface prevents proper installation of torch-down roofing. Therefore, getting rid of the old roof is better, which can cost between $1,500 - $2,500.

Underlayment Replacement

Torch-down roofing cannot be appropriately installed if the existing underlayment is sagging or worn. Also, a deteriorated underlayment cannot provide adequate protection against water intrusion. Its replacement price ranges from $660 to $1,425, but it will save you a lot of leak-related problems.

Roof Vents Installation

Installation of torch-down roofing is carried out under the influence of high temperatures. Without proper ventilation, the heat generated is stored in the roofing system and, over time, can lead to premature wear of the materials. Thus, by adding $200 - $700 to the total torch-down roofing cost for the vent installation, you won’t break the bank but prolong the life of the roofing.

Roof Warranty

Like many bona fide manufacturers, roofing contractors can provide warranties on the quality of their work. They can cost $500 - $2,000, but these expenses are optional, so it’s up to you to decide whether to allow for it when utilizing a torch-down roofing cost calculator. Still, if you have problems with your new roofing after it has been installed, you know exactly who to contact to solve them.