What Are the Different Types of Felt Roofs for Installation?

Uncover the key factors to consider when choosing the perfect felt roof material for your project - the right choice can make all the difference.

Felt roofs come in three main types: torch-on felt, self-adhesive felt and shed felt. Torch-on felt, ideal for flat roofs, requires professional installation using a blowtorch to apply bitumen layers, offering durability and weather resistance. Self-adhesive felt is user-friendly and suitable for DIY projects like outbuildings and garages, eliminating the need for open flames. Shed felt is cost-effective for smaller structures like garden sheds and is easy to apply. Each type offers unique benefits, tailored to specific project requirements.

What Are the Common Types of Felt Materials Used for Roofing?

choosing the perfect construction material

  1. Torch-on Felt: Ideal for flat roofs. Uses rolls of bitumen felt heated with a torch to create a watertight seal. Typically applied in three layers for enhanced waterproofing. Preferred for professional installations due to its durability and weather resistance.
  2. Self-Adhesive Felt: Suitable for DIY projects such as sheds, porches, and garages. No open flame is required, making it safer and user-friendly. Known for its cost-effectiveness and long-lasting performance.
  3. Shed Asphalt Felt: Best for small projects like garden sheds or outbuildings. Easy to apply on flat, apex, or pent roofs. Provides adequate protection at a lower cost, ideal for simpler, smaller installations.
  4. Bitumen-Felt Shingles: Bitumen-felt shingles are a durable and cost-effective roofing solution. Comprising bitumen and cellulose fibres, they offer a lifespan of 15 to 25 years. Available in various shapes and colours, they provide versatility in design for both traditional and contemporary styles. Easy to install, they are suitable for contractors and DIY enthusiasts.
  5. Built-Up-Felt Roofing: Built-up felt roofing, or BUR, employs layering 2-3 sheets of bitumen bonded with hot bitumen or adhesive, offering durability and cost-effectiveness. The lifespan averages 15-30 years, providing a resilient option for various structures. A primary advantage is the low cost; materials like bitumen are affordable, making BUR economical. Multiple layers create a robust barrier against weather, boosting longevity.
  6. Mineral Felt Roofing: A traditional flat roof covering made from bitumen-soaked organic felt, is cost-effective and durable for waterproofing both residential and commercial structures. It is valued for its affordability and protective qualities. Its primary advantage is ease of installation. Available in rolls, it can be applied with adhesive or nails, simplifying the process. This is particularly beneficial for smaller projects like sheds, garages, and extensions, allowing labour cost savings.

When Is a Felt Roof the Best Choice for a Project?

A felt roof is ideal for projects requiring cost-effectiveness, durability, and ease of installation, especially for flat roofing. It’s particularly suitable for small to medium-sized structures like garages, sheds, and extensions. Types of felt roofing, such as mineral felt, torch-on felt, and self-adhesive felt, cater to different needs and complexities.

Felt roofs are favoured in budget-conscious projects due to their affordability, from the economical No. 15 felt to the more robust No. 30. The easy installation process, especially with self-adhesive and torch-on felts, enables secure and swift application without specialized tools or training. Durability is another key benefit in moderate climates with limited foot traffic, offering excellent waterproofing and weather resistance. Built-up felt roofing provides a resilient surface against rain, snow, and UV radiation.

For straightforward, traditional, and effective roofing needs, felt roofs are a dependable choice. Their suitability for both residential and commercial applications makes them practical for various flat roofing requirements, ensuring long-lasting protection for buildings.

How Is a Felt Roof Installed?

A felt roof is installed by first applying a base sheet to the roof deck. Next, a cap sheet is added for waterproofing and durability. The felt material is heated to bond it securely, ensuring the layers adhere firmly to prevent water infiltration. Overlapping seams are crucial to cover all entry points for water.

Edges are secured with fasteners, and additional sealants may be applied to enhance waterproofing. Attention to detail in securing edges and seams fortifies the roof against harsh weather, extending its lifespan. Felt roofs are suitable for both flat and pitched surfaces.

Professional installation is recommended to ensure precision and durability. Properly installed felt roofs offer a cost-effective, durable solution with enhanced protection against environmental elements.

What Are the Benefits of Felt Roofs?

Felt roofs offer excellent waterproofing and insulation, cost-effectiveness, and ease of installation. They provide a strong barrier against water ingress, maintaining the structural integrity of buildings in various weather conditions, and making them ideal for both residential and commercial applications.

Compared to materials like metal or tiles, felt roofs are highly cost-effective. This makes them suitable for budget-conscious projects without compromising performance or longevity. This makes them a popular choice for garages, extensions, and other construction projects.

Felt roofs are versatile and can be adapted to different roofing structures, such as flat, apex, and pent roofs. They are suitable for new constructions or refurbishing existing roofs. Types such as torch-on, self-adhesive, and shed felt offer specific benefits tailored to particular project needs.

The installation process of felt roofs is straightforward, and appealing to DIY enthusiasts. Despite their simplicity, felt roofs provide durable protection for approximately 15 to 25 years, depending on the quality and type of felt used.

How to Maintain a Felt Roof?

To maintain a felt roof, perform regular inspections, cleaning, and repairs. Inspect periodically for tears, punctures, or signs of wear. Clean the surface to remove debris such as leaves and moss, which can retain moisture and damage the felt.

Promptly repair any damage, even minor tears, to prevent leaks. Ensure proper drainage by keeping gutters and downspouts clear. Apply protective coatings or sealants for added protection against UV rays and weather conditions. These practices will enhance the durability and effectiveness of the felt roofing.

When Should a Felt Roof Be Replaced?

A felt roof needs to be replaced when you observe signs like tears, cracks, blistering, or persistent leaks. Regular inspections are crucial to detect these issues early. While minor damage might be temporarily fixed with DIY repairs, professional assessments are essential for determining if a full replacement is needed. The typical lifespan of a felt roof is 15-25 years, but factors such as harsh weather conditions can accelerate deterioration. Timely replacement is critical to prevent further structural issues within the building.

Frequently Asked Questions

Can Felt Roofing Materials Be Installed on All Types of Roofs, Including Flat Roofs and Sloped Roofs?

Felt roofing materials can be installed on various types of roofs. Proper application techniques are essential for flat roofs to prevent ponding water and maintain longevity. Sloped roofs require additional considerations to account for drainage and water runoff.

Are There Any Environmental Considerations to Take Into Account When Choosing a Felt Roofing Material?

When choosing a felt roofing material, it’s essential to take into account environmental factors such as the material’s sustainability, energy efficiency, and recyclability. Opting for eco-friendly options can reduce your carbon footprint and contribute to a greener future.

How Long Can Felt Roofs Typically Last Before Needing to Be Replaced?

Felt roofs can last between 20 to 30 years depending on factors such as installation quality, maintenance, and weather conditions. Regular inspections and timely repairs can extend the lifespan. Properly installed and maintained felt roofs offer durability and longevity.

Are There Any Special Maintenance Requirements for Felt Roofs to Ensure Longevity?

To guarantee the longevity of felt roofs, regular inspections for damage, debris removal, and prompt repairs are essential. Cleaning gutters, checking for leaks, and applying protective coatings can prolong the roof’s lifespan. Professional maintenance can prevent costly replacements.

Can Felt Roofing Materials Be Recycled or Disposed of in an Environmentally Friendly Way After They Are Removed From a Roof?

Felt roofing materials can often be recycled or disposed of in an environmentally friendly manner after removal. Recycling centres or waste management facilities may accept these materials, ensuring proper disposal and reducing environmental impact.