Last Updated on November 19, 2024 by teamobn
If you want to install a roofing system on your residential or commercial property, consider investing in flat roofs.
Thinking About a Flat Roof? Here Are 7 Things You Must Know
A flat roof is easy to maintain, affordable, and can maximize usable space. In this article, we’ll explore seven things you need to know about flat roofs to help you decide whether this roofing option is right for you.
Various Material Options for Flat Roofs
Like traditional pitched roofs, there are various flat roof materials to choose from when constructing a flat roofing system. The most common types of flat roofing materials include:
- Built-up roof (BUR): BUR is a traditional system made of layers of gravel, tar, and roofing felt. Built-up Roofing material is durable and offers good insulation. However, it is heavy and can be expensive to install.
- Modified bitumen: This roofing material comprises an asphalt base coat, fiberglass reinforced layer, or rubber. It is often applied in layers, providing excellent waterproofing. Modified Bitumen is more affordable than BUR and offers good longevity.
- EPDM (Ethylene Propylene Diene Monomer): EPDM is a type of synthetic rubber membrane. It is affordable, lightweight, and easy to install. However, EPDM does not provide as much insulation as other materials.
- TPO ( Thermoplastic Polyolefin): TPO is a single-ply membrane that uses screws to attach to the roof deck. This roofing material is highly resistant to UV rays and heat. It is a more eco-friendly option and provides good energy efficiency. However, if you do not install TPO carefully, it can be prone to punctures.
Other flat roof material options include concrete, metal, and spray-on, to mention a few. Consider your budget, needs, preferences, climate, and how long you want the roof to last when choosing the right material for your flat roof.
Flat Roofs Require Regular Maintenance
Flat roofs are susceptible to issues like leaks, so they require regular inspections and upkeep. Since water doesn’t run off as quickly as in a sloped roof, flat roofs are more prone to leaks and damage from standing water, debris buildup, and exposure to the elements.
Invest in regular maintenance to extend the lifespan of your flat roof and prevent costly repairs down the road. The following are tips for maintaining flat roofs:
- Clean drains and gutters: Ensure the drainage systems are free from debris to prevent water buildup.
- Inspect the roof for cracks or blisters: A small crack can grow over time, leading to leaks.
- Address ponding water: Gathered water of any kind can lead to water damage down the line
Flat Roofs Are Energy-Efficient
Flat roofs are highly energy-efficient, especially with the right materials and insulation. Traditional flat roofing materials tend to absorb heat, which can raise indoor temperatures and increase cooling expenses. However, energy-efficient options like TPO and Modified Bitumen roofs can reflect sunlight and reduce heat absorption.
Consider adding proper insulation beneath the flat roof to enhance energy efficiency. A well-insulated flat roof can help in regulating indoor temperatures. This makes your home more comfortable and lowers energy bills.
Flat roofs are also ideal for installing solar panels. This makes them an excellent choice for homeowners looking to add renewable energy to their building designs.
Flat Roofs Are Not Entirely Flat
One of the greatest misconceptions about flat roofs is that they are entirely flat. Flat roofs have a slight slope, often between ¼ to ½ inch per foot. This slope is crucial to facilitate water drainage and prevent pounding, which could damage the roof over time. Without proper water drainage, water can pool on the roof’s surface, leading to leaks, structural damage, and reduced roof lifespan.
Be sure to partner with roofing professionals, who understand the need for an adequate slope. This will reduce the likelihood of experiencing water-related problems that could have been avoided with proper installation.
Flat Roofs Can Be Used as Functional Spaces
If your property has limited space, invest in a flat roof to increase usable space. Unlike sloped roofs, a flat roof can be used as an additional outdoor space. Here are some common uses of flat roofs:
- Rooftop gardens. You can transform a flat roof into a green space to provide a relaxing environment. A rooftop garden can also help lower energy bills by reducing heat absorption.
- Decks or patios. With proper design and construction, a flat roof can serve as an outdoor entertaining area.
- HVAC systems. If you have limited ground space, especially for a commercial building, consider placing the heating, ventilation, and air conditioning unit on your flat roof.
While the flat roof’s additional uses enhance its functionality, they may also add weight to your building. Liaise with a reliable contractor to establish the roof can support the additional load. You could even reinforce the structure to handle the extra weight.
Flat Roofs Are Affordable
A flat roof is more affordable to install compared to traditional roofs. However, the total cost can vary depending on size, materials, and project complexity.
Be sure to factor in long-term maintenance and repair costs when budgeting for a flat roof. The expenses could increase over time since the roof requires frequent inspections and maintenance. However, a flat roof can be a cost-effective solution for residential and commercial properties with proper installation and regular upkeep.
Flat Roofs Require Professional Installation
Flat roofs require specialized knowledge and expertise to ensure proper installation. Unlike sloped roofs, where water drains off naturally, flat roofs require detailed design and construction to manage drainage and prevent leaks. If the flat roof is not installed correctly, it could lead to issues like ponding water, material deterioration, and frequent repairs, which reduces the roof’s lifespan.
Partnering with a roofing contractor with experience in flat roof installation is crucial. An expert knows how to create the necessary slight slope, choose appropriate materials for your climate, and install drainage systems to prevent water buildup. While professional installation may have higher upfront costs, it can help avoid costly mistakes and ensure your roof performs optimally for years.
Endnote
A flat roof is an excellent addition to your commercial or residential property. It gives your home a sleek, modern aesthetic, adds functional space, and minimizes energy bills. Familiarize yourself with the above factors to establish whether or not to invest in a flat roofing system.
