Commercial Roofers Islington

Commercial Roofing FAQs

What are the different types of roof drains?

Several types of roof drains are available, each with its design:

• Conventional Drains: Simple drains with a strainer and a vertical drainpipe.
• Siphonic Drains: Use the Venturi effect to create a vacuum that pulls water through the drain more rapidly, allowing for smaller drainpipes and reduced roof penetrations.
• Scupper Drains: Openings in parapet walls or roof edges that allow water to drain off the roof.

A roofing contractor can help you determine the best type of drain for your commercial roof.

How do I prevent ponding water on my commercial roof?

Ponding water, the accumulation of water on a flat roof, can lead to:

• Leaks
• Structural damage
• Premature roof deterioration

To prevent it:

• Proper Design and Installation: Ensure your roof has a sufficient slope for proper drainage during the design and construction phase.
• Regular Inspections and Maintenance: Inspect the roof regularly for clogged drains or debris buildup.
• Repair Sagging Areas: Address any sagging or low spots on the roof, as they can trap water.
• Tapered Insulation: Consider installing a tapered insulation system to create a gradual slope toward the drains.

What are the benefits of a roof maintenance plan?

Implementing a proactive roof maintenance plan for your commercial property offers several benefits:

• Extended Roof Lifespan: Preventative maintenance and prompt repairs help to maximize the lifespan of your roof, delaying the need for costly replacements.
• Leak Prevention: Regular inspections can identify potential leaks early on, allowing you to address them before they cause significant damage.
• Cost Savings: Addressing minor repairs as part of a maintenance plan is significantly less expensive than dealing with major roof damage or premature replacement.
• Improved Energy Efficiency: Maintaining proper insulation and ventilation can enhance your roof's energy efficiency, reducing heating and cooling costs.
• Safety: A well-maintained roof is crucial for the safety of your employees and building occupants. Regular inspections can identify potential hazards and prevent accidents.
• Compliance: A roof maintenance plan can help ensure your roof remains compliant with local building codes and regulations.

What are the different types of commercial roofing systems?

There are several types of commercial roofing systems commonly used, each with its own advantages and disadvantages:

• Built-Up Roofing (BUR): A traditional, multi-layered system consisting of alternating layers of asphalt and reinforcing fabric. It's known for its durability, waterproofing capabilities, and affordability.
• Modified Bitumen Roofing: A single-ply system that uses asphalt-based sheets modified with polymers for enhanced flexibility, durability, and weather resistance. It's a versatile and cost-effective option for various commercial buildings.
• Single-Ply Membrane Roofing: A modern system using a single layer of waterproof membrane, typically made from EPDM (ethylene propylene diene monomer) rubber, TPO (thermoplastic polyolefin), or PVC (polyvinyl chloride). These membranes offer excellent waterproofing, energy efficiency, and ease of installation.
• Metal Roofing: Known for its longevity, durability, and fire resistance, metal roofing is a popular choice for commercial buildings. Available in various styles, including standing seam, corrugated, and metal shingles.
• Spray Polyurethane Foam (SPF) Roofing: A spray-applied roofing system that forms a seamless, monolithic membrane, providing exceptional insulation, waterproofing, and energy efficiency.
• Green Roofing: A system that involves covering the roof with vegetation, soil, and drainage layers. Offers environmental benefits, including reduced stormwater runoff, improved air quality, and energy efficiency.

Choosing the best roofing system depends on various factors, including your budget, building structure, climate, and specific needs. A qualified commercial roofing contractor can assess your roof and recommend the most suitable option.