Cost is always on your mind when you own a commercial property, especially when it comes to replacing or installing your roof. Of course, the cost of such a project depends on various factors, including the type of roofing material, the size and complexity of the building, and additional features or services required. In this comprehensive guide, we will explore these factors in detail, enabling you to make informed decisions and better understand the pricing structure of commercial roofing projects in New Jersey.
Factors Affecting The Cost of a Commercial Roof
Let’s take a look at the various factors that contribute to the cost of your roof:
Roofing Material
One of the most significant factors is the type of roofing material chosen for the project. As with residential roofing, commercial roofing materials come in a wide variety, including built-up roofing (BUR), modified bitumen, single-ply membranes (EPDM, TPO, PVC), metal roofing, and roof coatings. Each material has different installation requirements and price points. For instance, BUR and modified bitumen tend to be more affordable, while metal roofing and single-ply membranes are generally more expensive.
You will want to weigh the pros and cons of each of these roofing materials, as some may be better suited for your business than others.
Roof Size and Shape
Next is the size and shape of the roof. A small roof will naturally cost less to replace or install than a larger roof, because less materials and labor is required. In addition, complex roof designs, such as steep slopes and pitches, intricate architectural designs, or multiple levels, will increase the overall expense. For instance, steep roofs are far more challenging to work on than a flat roof. Turrets, domes, and unconventional shapes may also require a higher level of craftsmanship and expertise (or even a commercial roofing specialist), which may impact how much you are charged per hour.
Roof Access
The accessibility of the roof affects the cost as well. If the commercial building has easy roof access, the installation process will be more efficient and require less time and effort. However, if the roof is difficult to access or requires special equipment, such as cranes or scaffolding, the costs may be higher.
Existing Roof Condition
The condition of the existing roof also impacts the cost. If the current roof is severely damaged, it may need to be removed entirely before the new installation. Additional repairs or remediation work may be necessary if there are issues such as leaks, structural damage, or mold. Furthermore, the roof decking condition affects the cost should it need to be replaced or repaired.
Additional Features and Services
Aside from materials, size and shape, and access to the roof, you also have to account for roofing features or additional services. Should your roof have skylights, any rooftop equipment (solar panels, HVAC units), drainage systems, or safety measures, like guardrails, this increases the complexity of the project. As such, the cost may be higher than if these obstacles didn’t exist.
Additionally, extra services may be tacked onto your commercial roof replacement or installation. For example, if the NJ roofing company you hire finds mold or water damage in the insulation, they may suggest replacing that as well.
Average Costs for Commercial Roof Replacement or Installation NJ
Determining the average costs for commercial roof replacement or installation is crucial for planning and budgeting purposes. Now that you have seen some determining factors, let’s take a look at what the average cost is by roofing material. Understanding these cost ranges will provide you with a starting point for estimating the investment required for your commercial roofing project.
Built-Up Roofing (BUR)
Built-Up Roofing (BUR) systems are a popular and cost-effective choice for commercial buildings. They consist of multiple layers of bitumen and reinforcing fabrics that provide excellent durability and weather resistance. The average cost for BUR installation ranges from $6.50 to $15.00 per square foot. However, the final price can vary based on several factors.
The number of layers required affects the cost, as additional layers increase material and labor expenses. The type of insulation used also impacts the overall price, with options such as polyisocyanurate (ISO), expanded polystyrene (EPS), or mineral wool differing in cost. Additionally, any additional features requested, such as tapered insulation for improved drainage or specialized surfacing for enhanced UV protection, will influence the final cost of the BUR installation.
Single-Ply Membranes
Single-ply membranes, including EPDM (Ethylene Propylene Diene Monomer), TPO (Thermoplastic Olefin), and PVC (Polyvinyl Chloride), are popular choices for commercial roofs due to their durability and energy efficiency. The average cost for single-ply membrane installation ranges from $5.00 to $14.00 per square foot. The specific material chosen is a significant factor in determining the cost. EPDM tends to be on the lower end of the price range, while PVC is generally at the higher end.
Modified Bitumen
Modified bitumen roofing systems are known for their durability and flexibility. This is a hybrid product that combines asphalt and synthetic rubber modifiers, such as Atactic Polypropylene (APP) or Styrene-Butadiene-Styrene (SBS). Modified bitumen membranes come in rolls and are typically installed in multiple layers on the roof. They can be torch-applied, cold-applied with adhesives, or self-adhered, depending on the specific product and installation method.
Being that this material has many benefits, such as superior waterproofing capabilities, it is commonly used in commercial roofing applications. The average cost for modified bitumen installation ranges from $4.00 to $7.00 per square foot.
Metal Roofing
Metal roofing is known for its longevity, aesthetics, and excellent weather resistance. It is a popular choice for commercial buildings. The average cost for metal roof installation ranges from $8.00 to $15.00 per square foot. The specific factors that affect the final price include the type of metal selected, such as steel, aluminum, or copper. Each metal has different cost considerations.
Coatings, such as galvanized, galvalume, or specialized finishes, can also impact the overall cost. Insulation requirements, including options like rigid board or spray foam, contribute to the final price as well. Customization, such as architectural details or complex designs, can increase the cost of metal roof installation.
Asphalt Shingles
Asphalt shingles are a popular choice for commercial roofs, especially for buildings with sloped roofs. That said, if you have a commercial building that has a flat or low slope roof, it is best to stick with other roofing materials, such as BUR, single-ply membranes, modified bitumen, or even metal roofing. One of the reasons asphalt shingles are so popular for both residential and commercial roofing is their cost-effectiveness and versatility. You can also choose from a wide range of colors and styles to suit the architectural design of your business.
Asphalt shingles consist of a fiberglass or organic mat core coated with asphalt and topped with mineral granules. They provide durability, weather resistance, and ease of installation. The type of asphalt shingle can impact the cost, with architectural or designer shingles being on the higher end of the price range compared to traditional three-tab shingles, which are being phased out.
Since asphalt shingles are so varied, you can expect to pay anywhere from $2.50 to $7.50 per square foot. Do note that some asphalt shingles with additional impact resistance or other features may cost even more per square foot.
Roof Coatings
Roof coatings are liquid-applied membranes that adhere to the existing roof surface, forming a seamless protective layer. They offer a range of benefits, including increased waterproofing, UV resistance, reflectivity, and energy efficiency. Roof coatings can help prevent leaks, reduce the roof’s temperature, and extend its overall lifespan.
The type of coating chosen is a significant factor in determining the cost. Acrylic coatings are often the most cost-effective option, offering good UV resistance and waterproofing properties. Silicone coatings are known for their exceptional durability and resistance to ponding water, but they tend to be slightly more expensive. Elastomeric coatings provide excellent flexibility and crack resistance, making them suitable for roofs that experience significant temperature fluctuations.
The number of coats required is another factor that influences the cost of roof coating installation. While most coatings typically require one or two coats, certain situations may necessitate additional layers for optimal performance.
Generally, the average cost for a roof coating is between $1.50 to $7.00 per square foot.
Additional Cost Considerations
Lastly, let’s examine the additional considerations that may impact your commercial roofing project.
Maintenance and Warranty
If you want to get your money’s worth when it comes to your roof, maintenance is key. That said, there are some instances where maintenance and inspections are not enough. In that event, you are going to want a comprehensive warranty that protects your investment. Review the warranties provided by your roofing company to see if you will need additional coverage. Many warranties can be supplemented at an additional cost, especially if the contractor you used is certified by a company. For example, RGB Construction is GAF MasterElite certified and can offer better warranties because of this.
Permits and Codes
Obtaining the necessary permits and complying with local building code is critical for any commercial roofing project. Since these requirements vary from municipality to municipality, it is recommended that you seek out local roofing companies in NJ who can assist with the procurement of these documents. Of course, if you do need permits to replace or install your roof, it will come at a cost. Do not overlook this when budgeting for your new roof.
Insulation Requirements
The need for insulation installation can impact the cost. Proper insulation is crucial for energy efficiency and temperature regulation, but it may add to the project’s expenses.
You will want to consider the type of insulation required for your commercial roof, such as mineral wool, extruded polystyrene (XPS), expanded polystyrene (EPS), or polyisocyanurate (ISO). Furthermore, where the insulation is placed—such as above or below the roof deck—along with the thickness, code requirements, roof size, and the rate charged by the hour, will play a role in how much you pay.
Looking For NJ Roofing Contractors for Your Commercial Roof?
Replacing or installing a new commercial roof in New Jersey involves various factors that contribute to the overall cost. Understanding these factors, such as roofing material, roof size and complexity, roof access, existing roof condition, and additional features, allows for a more accurate estimate. When you are looking to replace or install your commercial roof, be sure to contact a local commercial roofing company like RGB Construction. We are trusted roofing professionals who have been serving New Jersey for many years. Call us today at 856-264-9093 to receive your free quote.
