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ADCO Blog

Negative Impact of Ponding Water on Roofs

Without proper design, installation, and maintenance, a roof can suffer from ponding water, which can create a variety of adverse effects for the building.

According to the Asphalt Roofing Manufacturers Association (ARMA), ponding water is defined as the water that remains on a roof 48 hours or longer. The ARMA recommends that roof designs provide adequate slope (a minimum of one quarter-inch per foot) to guarantee the roof drains properly throughout the building’s life.

Typical issues that arise from ponding water on roofs include…

Accrual of dirt, debris and other impurities, which can mar the roof’s membrane.
Distortion of the roof deck’s construction, as ponding water can significantly swell the load. As water gathers, deck deflections can intensify, producing more ponding water that may adversely influence the structural integrity of the deck.
The emergence of algae and vegetation. If water is in place for extended intervals, algae and vegetation will probably result,

Why Are Commercial Roofs Typically Flat?

If you look at commercial roofs throughout Southern California (and the rest of the country, for that matter), you will notice that most of them are flat.
Why are most schools, grocery stores, factories, hospitals and other industrial buildings designed with flat roofs? Why aren’t they sloped or peaked like most residential roofs?
If you guessed that cost is the reason, you have only part of the answer.

Flat Commercial Roofs Are Cost-Effective
Yes, budget is a big concern in the design and construction of commercial buildings, particularly since these structures typically have large footprints.
Simply put, flat commercial roofs are cheaper to install because they require fewer materials. Adding peaks and valleys would necessitate a more complex design and result in extra framing costs.
Just like your home, retail and industrial buildings require effective drainage systems to facilitate the runoff of rainwater and melting snow. This increases the cost of the roof, but in

Common Flat Roofing Errors To Avoid

Why, despite the knowledge, decades of experience in the design and construction of flat roofs and the use of increasingly sophisticated materials, do flat roofs still bring doubts and worries to many property owner’s minds? The answer to this question lies in these three factors: Design, Construction and Operation.

Very common flat roof problems stem from poor maintenance or a complete lack thereof. Regular maintenance requires flat roofs to be periodically inspected for damage, repaired, cleaned and checked for the functionality of its insulation and waterproofing properties.
Design
Design Errors
The cycling through hot and cold seasons deteriorates flat roofs across Southern California year after year. On the surface of a flat roof, temperatures can range from +30 to +100 ° F. They are also exposed to UV (ultraviolet) radiation. Therefore, the nature and properties of the materials from which the flat roof will be made and insulated with should ensure functionality under these

Unique Uses for Flat Roofs

They’re flat. And that simple fact opens up endless possibilities for how builders and property owners use flat roofs. But while most of us are familiar with people using their roofs for recreational purposes or solar panels, few of us would have imagined how these flat roofs were used.

THE WHITE HOUSE – Most people think the roof of the White House in Washington D.C. is just a place from which the Secret Service can keep an eye on fence jumpers. But, while we’re sure there are some ‘home security’ features on the roof, most people are not aware of its main use (aside from keeping the U.S. President and his family warm and dry).William Howard Taft, who was President from 1909 to 1913, added a solarium on the roof of the White House. Since then it has been used as a school room for Caroline Kennedy and it’s where

Why Winterize Your Flat Roof In Southern California?

Wow it’s cold outside! Yes! Even in Southern California the temperatures are dipping into the 40’s at night. With the New Year behind us, there are several important reasons to winterize your flat roof in Southern California.
Why Leaves Can Destroy Your Southern California Flat Roof
Just because we live in the Sunshine State every property owner should realize what happens to your flat roof during winter. It is relatively simple why leaves can destroy your flat roof. As the leaves fall and the wind whips around everything ends up near your parapet walls and roof corners. As moisture gets trap with in the piles of leaves on the flat roof it starts to break down and decompose on your roof surface. While there may not be frost on the ground there is definitely frost on your flat roof. As the sun comes out and warms the surface more decomposing of the roof

3 New Year’s Resolutions For Your Commercial Roof That You Should Keep

Did you know that 45% of Americans make New Year’s Resolutions and 38% of Americans absolutely never make New Year’s Resolutions? The top four New Year’s Resolutions are related to self-improvement, weight/health, money/job and personal relationships. But what about resolutions for the biggest part of your investment, your commercial roof, most American commercial property owners forget about their commercial flat roof!

3 New Year’s Resolutions For Your Commercial Roof

1. Inspect your commercial roof: Depending on what part of the country you live in, annual roof inspections are very important. A roof inspection of your commercial flat roof can prevent inexpensive roof issues becoming expensive roof issues. It’s also prudent inspect after a storm comes through your area. Here in Los Angeles, California we see more flat roof neglect that causes commercial property owners huge amounts of money in either major roof restoration or premature roof replacement. Which all could have been