Are you trying to lower your energy bills, reduce your impact on the environment, or save money on taxes? Energy-efficient roofing might be the perfect solution for you! This type of roofing tackles all three of those issues at once, making it a triple solution. As Earth Day draws near, it’s also critical to think about how our decisions affect the environment. Making an investment in your home’s energy-efficient roofing is one method to make a difference.
What is Cool Roofing?
Cool roofing is the technical term for using roofing materials that is designed to reflect sunlight and reduce heat absorption, which in turn can significantly improve the energy efficiency of a building. Aside from Roofing materials it also involves using materials on the outside of your building, as well as ventilation and insulation on the inside. Check out our list of the top five most energy-efficient options to find out more about how cool roofing can save you money in the long run. Take a look at our list of the top five most energy-efficient options.
Energy Efficient Roofing In Canada
In Canada, we measure how energy-efficient roofing materials are using a system called the Cool Roof Rating Council (CRRC). The CRRC is an independent group that rates different roof products based on their solar reflectance, thermal emittance, and solar reflectance index (SRI).
The SRI number needed for a roofing material to be considered energy-efficient in Canada depends on where you are located and what the climate is like there. Generally speaking, if a roofing material has a higher SRI number, it is considered to be more energy-efficient.
For example, in the Canadian climate zone 5, which includes cities like Toronto and Ottawa, the National Building Code of Canada recommends a minimum SRI value of 29 for low-sloped roofs and 78 for steep-sloped roofs to meet the energy efficiency requirements. In warmer climate zones, such as zone 7 that includes cities like Vancouver, Victoria, and Nanaimo, the recommended SRI values are higher.
It’s important to note that SRI values are just one factor to consider when choosing an energy-efficient roofing material. Other factors, such as insulation and ventilation, also play a role in the overall energy efficiency of your roof.
5 Types of Energy Efficient Roofing System
There are several types of roofing materials that are considered energy-efficient in Canada. Here are some of the most common options
Metal roofs are highly reflective and can reduce energy costs by reflecting sunlight away from the building. They can also be recycled at the end of their lifespan, making them an eco-friendly choice. The cost of metal roofing can vary from $8 to $14 per square foot, including installation costs.
- Cool roofing technology uses reflective pigments that help reduce heat absorption.
- Metal roofing can be recycled, making it an eco-friendly choice.
- Can significantly lower your energy bills by reducing the need for air conditioning and improving your home’s insulation.
- Lasts for 40 to 80 years or more, providing a durable and long-lasting solution for your home’s roof.
Some asphalt shingles are designed with reflective granules that can help reduce heat absorption and keep the home cooler. They are also widely available and affordable, cost can range from $1.50 to $3.50 per square foot.
- Comes in lighter colors, which can help reflect sunlight during hot summer months.
- Variable energy-efficient options available for asphalt shingles.
- Designed to last for 20 to 50 years or more, making them a durable and long-lasting option.
Clay or concrete tiles
Clay and concrete tiles have high thermal mass, which means they can absorb and retain heat well. This can be a benefit in cooler climates, but in warmer climates, it can increase energy costs. However, lighter colored tiles can reflect more sunlight and reduce heat absorption. Using this type of cool roofing can cost you between $10 and $15 per square foot, including installation costs.
- Clay and concrete tiles are durable and can last for over 50 years.
- They can help keep your home cooler in the summer months by absorbing less heat than other materials.
- Using clay and concrete tiles or other roofing options can increase natural ventilation
Green roofs are a unique option that involves growing vegetation on the roof surface. Going with green roofs can cost between $15 and $50 per square foot, including installation and maintenance costs.They can help reduce energy costs by providing insulation, shading, and reducing heat absorption.
- Help improve air quality, reduce urban heat.
- Reduces energy costs by keeping your home cooler in the summer and warmer in the winter.
- May require more maintenance to keep, but can last up to 40 years.
- Reduce stormwater runoff and improve water quality.
- Can also increase the value of your home.
Synthetic roofing material
Synthetic materials, such as synthetic slate or rubber shingles, can be designed with reflective properties that can help reduce energy costs.This cool roofing option can cost between $5 and $8 per square foot.
- Designed with reflective properties that help reduce heat absorption and energy costs.
- Lightweight and durable, and some are made from recycled materials — an eco-friendly option.
- Can last up to 50 years or more.
- Require little maintenance compared to other roofing options.
How Does Energy Saving Roofing Help?
It’s important to note that the energy efficiency of roofing materials can vary depending on factors such as geographic location, climate zone, and roof design. When selecting a roofing material, it’s best to consult with a professional roofing contractor or energy auditor to determine the best option for your specific situation.
It is important to remember that different materials have different levels of energy efficiency, so it’s best to seek advice from a professional roofing contractor near you or an energy auditor in your area. With Earth Day approaching, it’s especially important to consider the environmental impact of our choices, including the materials we use in our homes. Making energy-efficient decisions, such as choosing the correct roofing material, is a simple but effective approach to support the cause as we work to minimize our carbon footprint, and is a simple but effective way to contribute to the cause.
They can absolutely help you decide on which material is best for your specific situation. A professional roofing contractor in your area can also provide guidance on how to install and maintain it properly. Plus, they can help you figure out how much energy you could save by choosing a particular material.