Bituminous/Asphalt Roofing Shingles FAQS

Roofing Shingles are roofing materials that come in flaps made of a fiber-reinforced base mat, asphalt coating, and granules on the surface.

There are two types of bituminous/asphalt roofing shingles:

• Cambridge express double-layered shingles-These have multiple layers, giving them a thicker, more textured look while offering greater durability and wind resistance.
• Single layered shingles
  • Superglass 3-tab shingles
  • 4-tab single layered shingles

These two types of roofing shingles are available in many exciting colors, shapes and designs.

The installation process involves the following steps:

• Preparation: Ensure a proper roofing deck is in place: a 12mm OSB (Oriented stranded Board), T&G Boards or a nailable concrete screed can be used as a decking.
• Underlayment for waterproofing, Armourbase Eco or plain APP can be used as underlays.
• Installing shingles: Shingles are nailed in place using Galvanized clout nails with a specific nailing pattern to ensure durability.
• Sealing edges and flashings: Any roof-wall junctions are sealed using granulated APP membranes to ensure there’s no water ingress.
• Adding ventilation: Roof vents or ridge vents are installed to ensure proper attic airflow.

No, properly installed roofing shingles do not leak. They are designed to be 100% waterproof when installed with the correct techniques and underlayment. However, leaks can occur due to:

• Worn out, broken, or missing shingles
• Loose or improperly placed nails
• Poorly sealed roof flashing around vents, skylights, and chimneys
• Water pooling due to improper slope or clogged gutters

Regular inspections help prevent leaks by identifying potential problem areas early.

Asphalt Roofing Shingles are one of the most adaptable roofing materials, making them ideal for complex or curved roof designs.

Asphalt Roofing Shingles offered by REXE Roofing (REXE Roofing Shingles)  offer:

• Warranty – workmanship and product warranties
• Durability – High-quality materials ensure long-lasting protection
• Aesthetic variety – Available in different colours, shapes, and textures to complement modern, contemporary, or traditional designs
• Fire resistance – Certified fire-resistant properties for enhanced safety
• Noise reduction – Better soundproofing compared to metal roofing

Our roofing shingles have been used in notable projects across Kenya, including:

• The Hub Karen Shopping Mall
• Brook house Schools – Runda
• Mt. Kenya Wildlife Estate
• Peponi House Preparatory School
• Giraffe Centre

You can see some photos on our Project Portfolio page

With proper installation and high quality roofing shingles can last upto 50 years. We offer a product warranty and workmanship guarantee to ensure long-term performance.

No. REXE Roofing shingles are made from natural stone granules that retain their color for the lifetime of the product. However, dust and dirt accumulation may cause slight discoloration, which is naturally washed away by rain.

The cost of roofing your project using Asphalt Roofing Shingles varies depending on:

• The total roof area and roof design
• The type of asphalt shingles used
• Additional materials like underlayment and fasteners
• Installation cost

You can get an accurate quote by filling out our online request form or sending your roof plan to sales@rexeroofing.com.

Yes. We have an experienced team of certified installers who ensure the highest quality roofing standards. We also provide workmanship guarantees of 10years.

Roof underlayment provides an extra layer of waterproof protection between shingles and the roof deck. It helps:

• Prevent moisture damage
• Improve roof longevity
• Enhance insulation

We recommend Armourbase ECO Underlayment for superior protection.

Yes. While most shingles require a minimum slope of 20 degrees, our laminated shingles can be installed on roofs with a pitch as low as 9 degrees, provided the correct underlayment is used.

No, as long as it is properly ventilated. Adequate ventilation helps dissipate heat and moisture, improving roof efficiency and preventing condensation damage.

We provide specialized roof ventilators to enhance air circulation.

No. Unlike metal roofing, shingles have an asphalt-coated surface and are installed over a solid decking, reducing rain noise significantly.

Yes. REXE shingles have a Class E fire rating and Broof (T1) external fire performance certification, ensuring resistance to fire hazards.

Yes. REXE Roofing shingles do not contain harmful chemicals or asbestos, making them safe for rainwater harvesting. However, we recommend filtration before use to remove natural impurities.

Yes. REXE shingles come with anti-algae protection, preventing moss and mould growth, especially in humid climates.

Yes. REXE Roofing shingles are designed to resist wind uplift and meet international wind resistance standards. Proper installation and nailing patterns ensure high wind performance.

A well-ventilated attic prevents heat build-up and moisture damage. The recommended ventilation is:

• 1:300 ratio (1 square foot of ventilation for every 300 square feet of attic space)
• A combination of ridge vents, soffit vents, and turbine ventilators for optimal airflow

In some cases, yes. However, it is generally not recommended because:

• It may void manufacturer warranties
• It can trap moisture, leading to rot
• It adds unnecessary weight to the structure

A complete Re-roofing ensures better long-term performance.