Roofing Blog

Hawaii Buildings Facilities & Property Management Expo 2012

Commercial Roofing & Waterproofing Hawaii Inc. is proud to be a co-sponsor of the 2012 Hawaii, Buildings, Facilities & Property Management Expo for the second year in a row.   As experts in our field for all types of roofing systems for all types of buildings and facilities, we’ll be there to discuss with you some possible strategies to help lower the overhead costs for your buildings or assess the current needs an goals for your facilities.  As the roof has evolved into a platform for hosting solar electric PV systems, so the integration of the roofing system and renewable energy system has become crucial with regards to watertight installations, systems warranties and contingent liabilities.  March 7 & 8th – mark your calendars!

Meet us at the booth or come check out our seminars.  Roofing technologies and the integration into the entire building envelope is key to upholding sustainable and energy efficient roofing systems.  We had a blast last year and we’re looking forward to seeing your familiar faces and also meeting new ones! We’ll be at the same place in the Blaisdell Exhibition Hall at Booth #547. You know we’re bringing the ever popular blackjack table back – bring your voucher to our booth for your chance to win!

Be sure to check our seminar schedule.  Print out your flyer here.  The first seminar “Solar Tax Credits End in 2016. What could happen next?” will be held on Wednesday march 7th, 9am – 10am.  The second seminar “The Pitfalls of Re-Roofing: Getting from Quote to Quality Successfully” will be held on Thursday March 8th at 10:30am – 11:30am.  Register for your seminars here.

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Firestone Recognizes Commercial Roofing & Waterproofing Hawaii for Quality Roofing Excellence

Firestone Recognizes Commercial Roofing & Waterproofing Hawaii for Quality Roofing Excellence

June 30, 2011

HONOLULU, Hawaii – Firestone Building Products Company, LLC, presented Honolulu-based Commercial Roofing & Waterproofing Hawaii, Inc., with the a 2011 Firestone Partner in Quality Award for its dedication to roofing system excellence. The firm was among 206 companies throughout North America to receive this industry acknowledgement. 

“Firestone strives to provide high-quality products and superior warranty programs, but a vital factor in our success is our network of exceptional commercial roofing contractors,” said Tim Dunn, president of Firestone Building Products. “Commercial Roofing & Waterproofing Hawaii, Inc. consistently upholds high industry standards, demonstrates outstanding workmanship and is a prime example of top quality commercial and industrial roofing installations that Firestone can stand behind.”

The firestone Partner in Quality Award is awarded to contractor’s who installed a minimum of four warranted Firestone roofs in each of the past five years, maintained at least one million square feet of Firestone roofs under warranty and achieved an annual Quality Incidence Rating (QIR) of 2.0 or less. The Firestone QIR measures each contractor’s quality performance based on warranty repair incidences per million square feet under warranty.

Commercial Roofing & Waterproofing Hawaii, Inc. is a full-service roofing and waterproofing contractor with 75 employees and operations in Hawaii, Guam and the Philippines. The firm is involved with Sustainability Initiatives and partners with communities, businesses and non-profits on initiatives that enhance island environment, economy and community. Through strategic alliances and partnerships, Commercial roofing & Waterproofing Hawaii, Inc. is able to provide a multitude of cool roof options, efficient products to reduce the carbon footprint, including reflective coatings, and a selection of advanced Photovoltaic (PV) systems.

For more information, call 808-841-7246 or visit For more information on Firestone,

*Article released on the Roofing Contractor Website.  Visit original article here.


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Green Roofs: The Ideal Addition to your Hawaii Home

A Green Roof is the roof of a building that is partially or completely covered with grass, vegetation, shrubbery, etc.; planted above a root barrier, drainage system, irrigation system; and a waterproofing membrane. The layers of the Green Roof allow for a beautifully landscaped roof with the comforts of knowing that your roof will remain intact, while providing a beautiful addition to your home and preventing water leakage for years to come.

The Benefits of Green Roofs

  • Retention of Storm Water
  • Reduction of Energy Consumption
  • Reduction the Urban Heat Island Effect (Cooler City)
  • Protection from the Waterproofing Membrane
  • Improvement of Air Quality
  • LEED and Green Globes Certification
  • Insulation of Sound
  • Improved Aesthetics
  • Increased Property Value

By installing a Green Roof in your home, you add another piece of paradise to your Hawaii home and by choosing Commercial Roofing you are choosing one of the best energy efficient Hawaii contractors available. For additional ways to improve your home such as solar power installation, contact us, and choose Commercial Roofing for all of your commercial roof system needs.

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Balikatan 2011 Military Field Testing Success


(Honolulu, HI) – Greenpath Technologies, a leading solar integrator delivering innovative renewable energy solutions in Hawaii, recently participated in the U.S. / Philippines Balikatan 11 Field Exercises held in early April this year at multiple Philippine locations.  The U.S. Marine Corp Forces’ Pacific Experimentation Center (MEC) supported the Balikatan exercise through technology insertions in the Field Training Exercise and Civil Military Operations and organized displays and demonstrations during the opening ceremony.  This exercise proved to be highly successful for Greenpath, where the company unveiled its new photovoltaic solar-powered man portable folding module that was evaluated and reviewed at Ft. Magsaysay and Camp Aguinaldo.

Greenpath participated in the new technologies segment of the exercise, displaying its LITE-PM folding PV module system, conducting data comparison and testing to competing models.  Greenpath’s PV module consistently charged the military standard issue batteries three times faster than the comparable models and even faster in cloudy conditions.  When tested side by side, the Greenpath system consisting of two batteries and two folding modules charged two batteries in three hours, versus the other system, also consisting of two batteries and two folding modules which charged only one battery at 50%.  On a day with only 50% sunshine, the Greenpath system fully charged two batteries in less than four hours while the other system charged only one battery to 40%.  In addition to holding a faster and more powerful charge, Greenpath Technologies’ folding module retains a smaller footprint than comparable modules.

James Chaney, inventor of the company’s PV folding module and Director of Greenpath’s R&D division attended the Balikatan event to present their technology to several different military divisions, including the U.S. Army National Guard based out of Guam, and the Philippine Army 51st Brigade from Camp Aguinaldo.  “Participating in this exercise before an authoritative military audience was a great opportunity to present our data testing alongside comparable models.  The results continued to support the superiority of our product.  It gives us much pleasure and a great sense of pride to know that we can locally develop a superior high-technology product that our troops abroad can effectively use,” said Chaney.

The LITE-PM system was evaluated by several notable individuals at the Balikatan Field Exercises, including the MEC’s Director, Experimentation Officer, Technology Lead, Renewable Energy Assessor, and the Hawaii-based ONR Officer.

Greenpath has been highly recommended to attend the Thai Crimson Viper field exercise testing held in Thailand in June, 2011 for further wartime testing and evaluation.

GreenPath Technologies is a native Hawaiian-owned and operated solar powered systems contractor and integrator, offering unique turnkey solutions in renewable energy for commercial, industrial, government, military, residential, and non-profit customers.  Recent projects include HawaiiUSA Federal Credit Union, Carrier Hawaii, Japanese Cultural Center of Hawai`i, J.H. Walter Cameron Center on Maui, and the Waialae Country Club.   GreenPath’s mobile folding

solar photovoltaic module will be manufactured locally and targeted for military war fighter deployment.   The company engineers some of the most advanced photovoltaic solar systems available today and invests heavily in research and development which has kept them at the forefront of renewable energy applications.


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Installing Rooftop Photovoltaic Systems (NRCA)

Position Paper: Installing Rooftop Photovoltaic Systems

This article was a Special Report delivered by the NRCA in February of 2010. Visit the original article at their website.

With growing demand for photovoltaic (PV) systems and an increasing use of rooftops as their natural home, the National Roofing Contractors Association (NRCA) and United Union of Roofers, Waterproofers and Allied Workers want to ensure these systems are properly installed, taking into account a number of crucial factors of which building owners, designers, installers and utility companies should be aware.

NRCA and the United Union of Roofers, Waterproofers and Allied Workers recommend rooftop PV system installation always involve a professional roofing contractor and, when necessary, a licensed electrician. The involvement of a licensed electrician is necessary to oversee the proper installation of a PV system’s electrical components, and, in most jurisdictions, there are requirements for licensed electricians to perform that function.

NRCA and the United Union of Roofers, Waterproofers and Allied Workers also recommend rooftop PV system installation only can be undertaken with the involvement of a professional roofing contractor employing skilled roofing workers for a number of reasons, including:

  • The roofing contractor will assess the roof’s condition. Installing an expensive PV system over an aged or faulty roof system will lead to unintended results.
  • The roofing contractor knows how to install new roof systems properly and safely to best accommodate rooftop PV systems.
  • The roofing contractor is aware of local building code requirements that pertain to the installation of the rooftop PV system. These requirements typically include provisions for wind resistance and fire resistance; simply installing a rooftop PV system over an existing roof system can lead to building code violations if not done properly.
  • The roofing contractor knows how to organize a roofing job site, properly load materials on the roof, and keep building occupants and passersby free from risk.
  • The roofing contractor is trained—and insured—for safety on the rooftop. Falls remain one of the primary sources of injury in the roofing industry. Workers who are not aware of best safety practices or Occupational Safety and Health Administration requirements not only put themselves in danger but also may be putting the building owner at risk.
  • Skilled roofing workers, including highly trained journeymen and apprentices, are proficient in the application of all roof systems. They understand PV technology and the types of PV applications used in roofing, have received extensive safety training and recognize the unique safety hazards associated with PV roof systems.
  • In addition, roofing workers are insured for worker’s compensation at a rate appropriate for work on rooftops. That is not likely to be the case for other tradesmen, and disputes easily can arise in the event of a claim.
  • Often, rooftop PV installations require penetration through the roof system. Roofing contractors understand how to properly secure equipment on rooftops, know how to apply flashing materials, and understand how attaching equipment to a roof system may affect its long-term watertightness.
  • Transporting material and equipment across a rooftop can damage the roof system. The roofing contractor understands proper methods to move material and equipment across the rooftop without causing damage.
  • Many roof systems carry warranties that are issued by the roofing contractor or the roof membrane or system manufacturer. All these warranties include provisions that make them void if alterations are made to the system (including any attachments) without the manufacturer’s prior approval.


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Contact Richelle Thomason for more details.
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Collins Joins Commercial Roofing & Waterproofing Team


(Honolulu, HI) – Commercial Roofing & Waterproofing Hawaii, Inc. (CRW) has hired John Collins as a Project Managing Estimator.   In this position, he will be responsible for estimating the scope and cost for their client’s public, military and private roofing projects.   He brings with him over 40 years of large-scale commercial roofing experience, 90% of which were spent working for the top 15 RSI roofing contractors.  Prior to joining CRW, Collins was the Hawaiian Operations Manager for WEBCO Construction.

Commercial Roofing & Waterproofing Hawaii, Inc. is a full-service roofing and waterproofing contractor with 75 employees and operations in Hawaii, Guam and the

Philippines.  They cover the full spectrum of roofing and waterproofing, having installed nearly every kind of system from the purely functional to assemblies that are highly visible and aesthetically pleasing.  CRW is highly involved with ‘Sustainability Initiatives,’ and through their partnerships with a strategic alliance of a family of companies, provides a multitude of technologically advanced clean energy systems and efficient products to reduce carbon footprints, including solar reflective specialty coatings, and a new generation of technologically advanced PV energy systems.


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Hawaii contractors raise home from ashes as first National Green Building Standard-certified project

When an O’ahu family lost their home to an electrical fire last March, the last thing they were thinking about was going green. But when the dust settled and the smoke cleared, the family (unnamed to the press) decided to take this negative and turn it into a positive. With an undisclosed insurance payout, the family decided to rebuild to National Green Building Standards, installing cutting-edge green innovations throughout the new home. The finished product, unveiled in January, shows how Hawaii contractors are going green. And they are shouting it from the rooftops.

The builders responsible are Kailua-based Bossert Builders, Hawaii contractors dedicated to building green and keeping costs low. The new 3,600-square-foot house features a solar hot water system (mandated by the state), rainwater reclamation for lawn and garden watering, and Energy Star-rated CertainTeed Landmark Solaris reflective shingles. The solar hot water system combines the power of the sun with a strategic Hawaii roofing system to heat the home’s water without the use of a bulky, wasteful water heater. The cool roof reduces temperature by as much as 20% compared to traditional Hawaii roofing.

Of course, green home-building goes beyond the roof. With massive walls of windows, ceiling fans in every room and an open floor plan, the house is designed to take optimum advantage of the natural beauty of the island–its hot sun and soft breezes–negating the need for heating, cooling, or other HVAC equipment.

But while building a house starts with a strong foundation, powering a house with the power of green energy starts one place: the roof. A strong roof, complete with solar panel systems, green roof accents and, of course, regularly-scheduled Hawaii roof repair, you can build a beautiful home to respect a beautiful island.

For more information on this revolutionary green-certified dwelling, click here.

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Solar Industry: New research on how PV Effects Residential Home Value

New Study Proves That PV Installations Contribute ‘Sizable’ Value To Home

in News DepartmentsNew & Noteworthy
by SI Staff on Tuesday 26 April 2011

Homes with solar PV systems sell for a premium over homes without solar installations, according to new research by the U.S. Department of Energy’s Lawrence Berkeley National Laboratory.

Although the premise that installing PV will add valueto a home has long been promoted by installers and others in the industry, the new study – titled “An Analysis of the Effects of Residential Photovoltaic Energy Systems on Home Sales Prices in California” – confirms and quantifies this effect.

According to the lab, this research is the first to empirically explore the existence and magnitude ofresidential PV sales price impacts across a large number of homes and over a wide geographic area. Over the past few years, an increasing number of homes with PV systems have sold, particularly in California, but relatively little research has been performed to estimate the impacts of those PV systems on home sales prices.

Overall, the researchers found that homes with PV in California have sold for a premium, expressed in dollars per watt of installed PV, of approximately $3.9/W to $6.4/W.

“These average sales price premiums appear to be comparable with the average investment that homeowners have made to install PV systems in California, and of course, homeowners also benefit from energy bill savings after PV system installation and prior to home sale,” says the report’s lead author, Ben Hoen, a researcher at Berkeley Lab.

The $3.9/W-to-$6.4/W increase corresponds to an average home sales price premium of approximately $17,000 for a relatively new 3.1 kW PV system (the average size of PV systems in the Berkeley Lab data set), and compares to an average investment that homeowners have made to install PV systems in California of approximately $5/W over the 2001-2009 period.

“This is a sizable effect,” says Ryan Wiser, a Berkeley Lab scientist and co-author. “This research might influence the decisions of homeowners considering installing a PV system and of home buyers considering buying a home with PV already installed. Even new-home builders that are contemplating PV as a component of their homes can benefit from this research.”

The lab analyzed a dataset of more than 72,000 California homes that were sold between 2000 and mid-2009, approximately 2,000 of which had a PV system at the time of sale. The research controlled for a large number of factors that might influence results, such as housing market fluctuations, neighborhood effects, the age of the home, and the size of the home and the parcel on which it was located, the researchers note.

The resulting premiums associated with PV systems were consistent across a large number of model specifications and robustness tests. The research also showed that, as PV systems age, the premium enjoyed at the time of home sale decreases.

Additionally, existing homes with PV systems were found to have commanded a larger sales price premium than new homes with similarly sized PV systems.

“One reason for the disparity between existing and new homes with PV might be that new-home builders also gain value from PV as a market differentiator that speeds the home sales process, a factor not analyzed in the Berkeley Lab study,” says Berkeley Lab researcher and co-author Peter Cappers. “More research is warranted to better understand these and related impacts.”

The full report can be downloaded here.

Photo credit: SolarCity



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Dana Akasaki Joins CRW As Chief Corporate Marketing Director


(Honolulu, HI) – Commercial Roofing & Waterproofing Hawaii, Inc. (CRW) has hired Dana Akasaki as the company’s Chief Corporate Marketing Director.   In this new position, Dana Akasaki will be responsible for overseeing the planning and development of the company’s marketing research, initiatives, materials, corporate imaging, and advertising activities.  She will also oversee the new business development and marketing communications staff, trade show product development, and marketing budget process.   She holds an MBA in marketing and entrepreneurship from Loyola Marymount and recently worked for a national fitness equipment manufacturer with sole distributorship across the U.S. mainland and international territories where she coordinated the firm’s various marketing functions including corporate and social media communication campaigns, and launched national online sales for clients, vendors, affiliates, dealers, and sales team staff.

Dana Akasaki now joins her sister, Candace Akasaki, who recently was named Assistant Comptroller and who is responsible for assisting all accounting functions, supervision of staff, and human resources for CRW.

Both Dana and Candace Akasaki will work alongside CRW’s Company President / CEO, Guy Akasaki.  Commercial Roofing & Waterproofing Hawaii, Inc. is a full-service roofing and waterproofing contractor with 75 employees and operations in Hawaii, Guam and the Philippines.  They cover the full spectrum of roofing and waterproofing, having installed nearly every kind of system from the purely functional to assemblies that are highly visible and aesthetically pleasing.  They are highly involved with ‘Sustainability Initiatives,’ and through their partnerships with other companies, provide a multitude of technologically advanced clean energy systems and efficient products to reduce carbon footprints, including solar reflective specialty coatings, and a new generation of technologically advanced PV energy systems.


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