Commercial Roofing FAQ: your anxieties allayed, your doubts cleared

Which is the most popular type of commercial roofing in the US?

The Single-ply membranes undoubtedly steal a march over other types because they are essentially factory manufactured flexible membranous sheets that can be heated, cooled, solidified and set in place quickly without involving major adjustments. EPDM, TPO or PVC roofing alternatives fall under this category. Their advantage is that they are lasting and cost-effective.

Why is EPDM roofing so much in use?

Ethylene propylene diene monomer, popularly known as EPDM is a thermoset single ply rubbery sheet-like roofing material primarily made of ethylene and propylene. Suitable for roofs with lower slopes, it comes in large rolls that are seamed together using special adhesives and tapes. It is straightforward to install and lasts far longer than its generous company warranty of 50 years.

What makes EPDM roofing more cost effective compared to others?

Per square cost is very low compared to expensive alternatives like slate and metal roofing. Being lightweight, it is easier to lay out and tolerates heat fluctuations very well. Though more popular in darker versions, white shades are also available that improve reflectivity. Such roofs are easier to repair and generally outlast their warranties.

Which is the most durable commercial roofing option?

The answer depends a great deal on the kind of roofing you design. When roofing slopes exceed four percent, commercial metal roofing options carry the day just because they are easier to install, less expensive to maintain, improve the ambiance of business ventures, and offer varied reflective paint options, besides lasting longer than their warranties.

For flat roofs, the rubberized and membranous single ply EPDP options are more capable of lasting the rigors of frequently changing weather and temperature fluctuations.

Is commercial asphalt roofing as good as it is touted to be?

Asphalt has dominated the steep slope roofing market in the US for quite some time, and its popularity remains undiminished mainly because of the dual option available to consumers. In organic shingles, a wood base is saturated with asphalt and coated with a tough layer of colored mineral granules to project a tough exterior. Alternatively, a fiber glass base can be pre-coated with mineralized granules of varying colors that mimic superior roofing materials.  Shingles adhering to norms set by the American Society for Testing and Materials (ASTM) are longer lasting and most fire resistant.

Can commercial roofing ever be eco-green? 

The U.S. Green Building Council (USGBC) has been promoting sustainability in roofing construction since 1993 and encouraged roofing that is eco green in conceptualization, design, and execution. Eco-friendly roofing usually highlights the following advantages:

  • Roofing lasts longer than what most warranties are willing to cover.
  • Higher R-values sustain higher heat fluctuations thereby increasing the longevity of the roofing material.
  • A substantial roofing component is sourced from recycled material.
  • Green roofing enables vegetation to be cultured in growth conducive layers embedded in a waterproofed membrane.

How does one know a roofing system needs repair?

By the time leaks and more severe damage wreak havoc on roofing systems, the symptoms like peeling wallpaper cracked paint, and discoloration of plasterboards start making their presence felt indoors. Half yearly inspections of the roof are vital for uncovering the following defects:

  • The shingles have cracked, become warped or have gone missing.
  • The seams have loosened up, permitting ingress of moisture.
  • Surface granules have shorn off and have started collecting in the gutter and are blocking the downspout.