Commercial Roofers Sittingbourne

Commercial Roofing FAQs

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.

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.

How do I choose the right type of roof access hatch?

Consider these factors when selecting a roof access hatch:

• Roof Type: The type of roof (flat, sloped, metal, etc.) will determine the appropriate hatch style and material.
• Size and Accessibility: Choose a hatch size that provides enough space for easy access and consider the location and surrounding obstructions for ease of use.
• Usage: Determine how frequently the hatch will be used and for what purposes. This will help you select a hatch with the appropriate durability and features.
• Safety Features: Prioritize hatches with safety features like handrails, non-slip surfaces, and locking mechanisms.
• Energy Efficiency: If energy efficiency is a concern, choose a hatch with good insulation and a tight seal.

Consult with a qualified roofing contractor or a roof access hatch supplier to find the best option for your needs.

How often should my commercial roof be inspected?

Commercial roofs should be inspected at least twice a year:

• Spring: After the winter months to assess any damage from snow, ice, or freezing temperatures.
• Fall: Before winter arrives to ensure the roof is ready for harsh weather conditions.

Additional inspections are recommended after any severe weather event, such as a hailstorm, strong winds, or heavy rain. Early problem detection can save you money and prolong roof life.