Alpen glass exceeds expectations for efficiency, comfort and daylight in David and Lucille Packard Foundation

January 2015-

A stunning photograph of the David and Lucille Packard Foundation Living Building Certified net-zero energy building graces the cover of this winter’s High Performance Buildings magazine, accompanied by a wonderfully-written 10-page article about this architecturally appealing, exceedingly efficient new commercial building enveloped with a shell of Alpen’s high performance suspended film insulating glass.

The article lead-in praises the building’s design, noting that now, 2 years after project completion, the building still exceeds net-zero energy performance, and has achieved 97%+ occupant satisfaction.

Alpen Inc. founder and high performance glass innovator, Robert Clarke – now leading Robert Clarke & Associates consulting firm – began work on this stunning Living Building Challenge Net-Zero Energy certified building in 2010 and played an integral role in designing the building’s advanced-insulating glass shell that contributes so heavily to it’s achievement of daylight-driven design.

The final installation of Alpen glass included directionally-tuned suspended film glass in 5 configurations with low U-values, and high solar control and visible light transmission performances.  Through the use of suspended coated films, Alpen’s glass incorporated laminated and custom ceramic fritted glass lights into the glass “sandwich” without penalty to its performance.

Praise to the architectural and energy efficiency design teams as well as all contractors, builders and innovators who collaborated to create such a masterfully executed, beautiful, net zero energy commercial space.

Click here for the full article in downloadable PDF format

EHDD Packard Foundation

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AE Building and Bonsai Design host Open House – January 24, 2014

Alpen’s Colorado front-range sales representatives are hosting an open house at a beautiful net-zero energy ready home in Denver, CO on January 24. 

The home’s beautiful, modern design uses Alpen 525-S Series windows to frame beautiful Denver skyline views, warm bedrooms of future residents with passive solar heat gain, and tighten up the envelope for year-round energy efficient performance. 

Be sure to RSVP at the bottom of the invitation below:

AE Building Systems and Bonsai DB invite you to

Lipan Street Cottage Open House

The Future is Now!!
Energy Efficient Home
You are invited to tour 3526 Lipan St., a Energy Star rated, new construction home in the heart of the Highlands in Denver Colorado. AE Building Systems and Bonsai Design Build have teamed up to present this unique opportunity at an insiders view of a energy efficient, net zero ready home. Take some time to talk with the designer and builder about some of the awsome features this home has to offer. Find out how this home uses 70% less energy than an average home. Drinks and food will be provided. Doors open at 2 pm until 7 pm. 

RSVP at Eventbright

We look forward to see you there.

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Alpen HPP Move Back to Boulder County Met with Encouragement, Praise in Left Hand Valley Courier

December 31, 2014 –

Left Hand Valley CourierNiwot Colorado’s Left Hand Valley Courier covers Alpen HPP’s upcoming move to the Niwot area in an expertly written feature article in this month’s issue.

Interviews with Alpen’s CEO, Brad Begin, and with Alpen clients add color to Alpen’s growth and relocation plans for 2015, including a manufacturing facility move back into Boulder county, showroom renovation, and plans to expand its product line in the coming year.

Overall, Alpen’s relocation and growth is met with encouragement and praise.  Sharing sentiments common among many Boulder and Colorado residents, Alpen customer, Dale Terrell explains he favors Alpen products in large part by the company’s regionally-located manufacturing headquarters, and the company’s commitment to environmental sustainability:

Terrell’s a fan of the small carbon footprint that comes from sourcing locally produced products. Terrell also made the case that Alpen has become an industry leader because the company’s roots are in Boulder County, with the high-efficiency mentality imposed by the county as well as by its residents.

Read the full Left Hand Valley Courier article online here, and stay tuned for more news and announcements about Alpen’s upcoming move and expansion – we are excited for all that 2015 will bring.

Happy New Year!

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Video about the Empire State Building Transformation, hosted by Alpen’s founder, Robert Clarke

Trolling around Youtube today, I found a video posted by Sika about the Empire State Building retrofit of 2010, and was surprised and delighted to hear a friendly voice greet me when I pressed “play”.  The video’s host is none other than Alpen founder and suspended coated film architectural glass pioneer, Robert Clarke.

Clarke’s work to initiate, oversee and engineer the re-glazing of all 6,514 windows in the Empire State Building is perhaps his most well-known and celebrated project achievements.  Ingeniously, he imagined a way to re-use all of the existing double-pane clear glass and boost R-value from R-2 to R-7 by disassembling, and re-assembling the glass units with a center layer of suspended coated film, making them triple-pane units.  His method of building an entire glass facility on the building’s fifth floor enabled the work to be done with minimal disruption to tenants and a low embodied energy cost.

Today, with the 8 other efficiency improvements in place, windows are credited to be achieving return on investment 151% faster than initially modeled expectations – full payback is expected to be achieved within the first 5 years.

Learn more about “Greening the Empire State Building” here

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Sustainable Design talks with Chris Bailey, Alpen window expert – NAPHN Conference 2014


In September, 2014, “Sustainable Design” – a Youtube channel focused on promoting new energy efficient products – visited the North American Passive House Network 2014 Conference in Portland, ME.  Video hosts stopped to talk with Chris Bailey of Pinnacle Window Solutions from Biddeford, ME while he was in his booth promoting Alpen high performance fiberglass windows.  This fun, informative video is now live on Youtube:

Pinnacle Window Solutions is one of Alpen HPP’s longest-tenured dealers in New England, having represented Alpen high performance fiberglass windows and glass in their region for many years.

Formally trained in architecture and possessing a strong aptitude for understanding technical elements of high performance fenestration, Chris Bailey quickly established himself as an expert in Alpen window products within the first year of Pinnacle WIndow Solutions’ establishment as an Alpen Distributor.

Alpen HPP is proud to have Chris Bailey serve as a spokesman for our Colorado-made fiberglass windows and suspended film insulated glass products.

Alpen HPP also thanks Sustainable Design VT for capturing and sharing this interview with the worldwide web.  Bravo to all that you do!

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Happy Homeowner Reports Success in Winter Window Installation

Even though it’s almost winter, it’s not too late to replace or install new energy efficient windows!  Braving the chilly Colorado temperatures last week, one Conifer, CO Alpen window owner forged ahead in his window installation work, sending us this update from the field:

 “My daughter and I installed the final three [windows] today … the last one when it was 27 degrees and snowing. They look great … clean, simple, solid and a pleasure to operate. I’m very happy !”

Conifer, CO Alpen Install

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Passive House Western PA Special Event this Wednesday, Nov. 5

Hey Western, PA!  Don’t miss this week’s special presentation hosted by the Western PA Passive House Alliance:

“Passive House Beyond the House”, presented by Passive House Western PA, powered by Bayer Material Science and Green Building Alliance.  The venue is the IBEW Conference Center, Southside.  The date is November 5,2014, 9:00 am to 3:00 pm.  Speakers will be Katrin Klingenberg, PHIUS and Timothy McDonald, Onion Flats.

Read more about the event and register online:

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Passive House Institute Certified Projects Database Now Online

Passive House PHI DatabaseThe International Passive House Association (iPHA) recently published their searchable database of Passive House Certified projects both completed and in construction.  As similar as the diversity in the individual home designs is the diversity of window products used.  There appear to be as many European window products as there are North American windows.

Among certified homes with North American windows, Alpen HPP is pleased to see that the large majority are pultruded fiberglass windows, including such premium products as Cascadia Windows, Accurate Dorwin, Inline and, of course, Serious Energy – who’s facilities Alpen HPP purchased in late 2012.

Although we retained the “X25″ naming convention, Alpen HPP has  taken great strides to improve the old Serious window line, and to make it Passive House friendly – from adding glass packages to accessories, to becoming the first Passive House Institute, US (PHIUS) Certified Window.

Check out the new searchable iPHA database online here:

How many Alpen/Serious projects can you count?


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Alpen Designers & Builders Among “Housing Innovation Awards” Winners

On September 30, 2014, the Energy Department announced recipients of this year’s Housing Innovation Awards, given to residential builders in recognition of their industry leadership in advancing energy efficient home construction.  Award nominees were drawn from two DOE program pools: DOE Zero Energy Ready Home and Home Performance with Energy Star.

Alpen HPP wishes to extend our sincerest congratulations to all of the Housing Innovation Award winners.  We also would like to take this opportunity to send special congratulations and thanks to award winners who supported, considered or selected Alpen high performance fiberglass windows for their award-winning projects, including:

One Sky Homes, Custom Builder, Grand Award Winner

Promethean Homes, LLC, Custom Builder

New Town Builders, Production Builder, Grand Award Winner

See the full list of 2014 Housing Innovation Award winners here and be sure to download recipient project case-studies from the Department of Energy Building Technologies Office for details and illustrations on how each award-winning home achieved it’s advanced efficiency and comfort goals.




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Landenberg Today touts house with Alpen windows as “A Home for the Next Century”

October 2, 2014-

Landenberg Today magazine Fall 2014 edition features multi-page article on an Alpen window home, calling it “A Home for the Next Century.”

eos-rebel-t5i_1074Nestled in a serene 7-acre camp in Landenberg, PA in Chester County, about 20 miles Southwest of Philadelphia, KampKaolin is a 2,700 square foot high performance home inspired, designed and built following the Passive House approach.  The construction team at Hugh J Lofting Construction Management emphasize use of “low-impact” building materials and methods throughout the build cycle.

As illustrated in their beautifully and meticulously maintained blog documenting all stages of the design-build process, the home’s owners explain how Alpen high performance fiberglass windows help create the super-insulated, air-tight building envelope a high performance home requires.

Hugh Lofting Construction further emphasizes how Alpen windows integrate with an air-tight envelope in their online installation video recorded on-site at KampKaolin during construction.

With such precision, care and attention to detail, this Alpen window project is sure to pass even the most stringent blower door test and air infiltration requirements of a super-efficient, zero-energy ready home of tomorrow.


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