A roof is an upper part of a building or structure that protects from rain, snow, sunlight, and temperature extremes. It consists of several layers of material and is attached to rafters. A person who specializes in roof construction is called a roofer.


Many factors affect Roofing Wilmington DE costs. For example, homeowners can save money by removing their own old shingles.

The cost of roofing materials depends on the type you choose. Asphalt shingles are the cheapest at $100 to $150 per square, while metal roofs and clay tile cost more. You will also need to factor in the cost of roofing nails. Typically, you need four nails for each field shingle, or 320 nails per square. Using the right size of nail is important, because it prevents water penetration and damage to your roof.

The type of house you have will also influence the cost of the roof. For example, simple gable roofs are easier to access, so you’ll pay less labor fees than for more intricate roof patterns like hip and gambrel. The location of your home can also affect the final price, as labor rates vary across the country.

Some homeowners decide to re-roof rather than replace their roofs, and this can save them money. However, re-roofing is only an option if your existing roof is still structurally sound. If the decking has been damaged or is leaking, it will need to be replaced. Depending on your local laws, you may need to obtain permits for this project.


A roof’s material provides the first layer of protection from sunlight, rain and snow. Its selection will have a significant impact on the durability of a building and its ability to withstand climate changes. There are a wide range of materials available to choose from, but there are some general considerations to keep in mind. These include cost, location and shape. In residential construction, asphalt shingles are popular as they are affordable and durable. In commercial construction, metal and EPDM are commonly used.

Traditional roofing materials range from thatch and slate to concrete and clay tiles. In addition, there are many new eco-friendly materials and roof systems available. Some examples include solar panels, green roofs and rooftop gardens.

The roof’s structural support system will influence the type of roofing material that is most suitable. Some materials may be too heavy for the existing structure, while others may require additional bracing and reinforcement. The type of roofing material chosen will also have a direct impact on the final cost of the project.

Traditionally, wood shingles or shakes were made from cedar, cypress and other softwoods. More recently, shingles have been manufactured from a variety of materials including plastic and fiberglass. A wood shingle is often coated with a waterproof sealant to protect against rain and snow. In addition, a sheathing and weather barrier layer is usually installed beneath the shingles to provide further moisture resistance.

Alternative roofing materials include slate and metal. Slate is a natural product that has a long lifespan and can be found in various colours and sizes. It is also lightweight and aesthetically pleasing, adding to the appeal of a home. Metal is a more expensive option but has excellent durability and fire resistance.

Another alternative is membrane roofing, which consists of large sheets of material fused together at their joints. This material is available in different thicknesses and can be bonded to either a sheathing or a nonnailable deck. It can be loose laid, mechanically fastened or fully adhered to the deck, and it is highly resistant to degradation from certain chemicals, bacterial growth, root penetration and extreme weather conditions.


The labor component of a roofing job includes the cost of all the workers needed to complete the project. This figure also includes the cost of any equipment rentals necessary to complete the job. The labor component is the base for calculating the breakeven and profit levels for all roofing companies. The profit level is achieved by adding the markup to the total cost of goods and services.

Quotes are a key element of the sales process. Using tools like Jobber allows you to include line item images, so the client can clearly understand the scope of work included in the price.


A roofing company should carry workers’ compensation insurance in case an employee gets injured on the job. This type of insurance provides payment for medical expenses, loss of wages and death benefits. It is required in most states and provinces for companies that employ people. Moreover, the insurance policy also covers legal defense costs in the event that an employee sues the business over a workplace injury.

Similarly, general liability insurance is important for roofing contractors to have. This type of insurance helps protect them in the event that a customer claims their property was damaged by a sub-roof installation or other work performed by the roofing contractor. Depending on the insurance policy, this may cover repair bills, legal fees and judgment awards.

Another type of insurance that’s crucial for roofers to have is commercial auto insurance. This type of small business insurance provides coverage for vehicles that are used for business purposes, such as trucks, plows and delivery vans. This type of insurance is different than personal auto insurance and typically includes a variety of options, such as bodily injury liability, collision insurance and comprehensive coverage.

A roofer should also consider getting a business interruption insurance policy. This type of insurance provides coverage for the business in the event that a catastrophe, such as a fire or storm, closes down the business. It can help cover lost revenue, moving costs and the cost of renting new office space while the business is temporarily closed.

Lastly, a roofing contractor should have a builder’s risk insurance policy. This type of small business insurance protects against the risks that come with ongoing construction projects, such as property damage, theft and vandalism. This type of insurance is commonly purchased by contractors, as it helps them avoid losing money on their projects if an incident occurs.

In addition to the above types of insurance, roofing contractors should consider buying a business owners policy (BOP). This multi-part small business insurance often includes property and general liability insurance. It can also include coverage for the contents of a roofing company’s vehicle and its work storage facilities, such as a shed or garage.