Don’t Miss High Performance Windows Break-Out Session Today at 2pm!

9/13/14 – Don’t miss today’s NAPHN Conference break-out session at 2pm featuring High Performance Windows discussions and debates.

Closing out the weekend in today’s break-out session “Track 4″ is a powerful lineup of speakers discussing all things High Performance Windows.  Speakers include:

  • Peta-Gaye Ebanks, presenting her findings of comparative study of differences between NFRC and CEN simulated window performance data
  • Colorado resident, Florien Speier, looks deeper into U-frame and U-glass values for Passive House design
  • And, rounding out the session, Alpen Inc. founder, Robert Clarke, looks forward to all that is new, innovative and ground-breaking in glass and window technology



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PHIUS Conference Poster Session Starts Tonight at 5:30pm

Kicking off this year’s PHIUS conference is the annual Exhibit Hall opening and Poster Session, come visit Alpen at Table “T3″ and say hello!

More information about this evening’s events:

PHNW Conf 2013 Hall

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PHIUS Conference Starts Thursday, 9/11! Visit Alpen at table “T3″

PHIUS’ annual Passive House Conference starts this week!  Be sure to stop by Table “T3″ in the exhibit hall to say hello to Alpen HPP.

Come see our latest window samples, photos, product performance data and more!

Alpen Booth at PHIUS - Map

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Horses love Alpen windows too

AE_Finished 5Alpen HPP is proud of the great diversity of uses for Alpen high performance fiberglass windows.  Our windows have insulated the walls of buildings of all kinds: from homes to dorms, classrooms and schools, from stores to breweries and wineries, government offices to high-rises… Alpen windows create comfortable living spaces for all kinds of occupants and occupations.  We’re pleased to now note that horses love our windows too.

Nestled in the woods at the top of a mountain in blustery Steamboat Springs, Colorado, the Koro Arena is a high performance equestrian center designed to comfortably house horses and riders year-round.  Using up-cycled and traditional materials and Alpen windows with simulated divided light grids, designers captured the beauty of traditional Steamboat style, making this new building look as familiar in the landscape as the iconic historic stables and barns that are hallmarks of the agricultural town.

Alpen’s sales team at AE Building Systems captures the finished building in a beautiful photo gallery on their website:

Koro_AE_Finished 2 Koro_AE_Finished 1 Koro_AE_Finished 3 Koro_AE_Finished 4

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Local Alpen Team Launches “Retrofit Revolution” in Louisville, Colorado

Louisville Retrofit_After-Alpen_AEWith two successful deep energy retrofits complete and many more in design and planning phases, local Alpen team, AE Building Systems, successfully launched a “retrofit revolution” in Louisville, Colorado.

Utilizing products from their own catalogue and employing Passive House building techniques, company founders and building systems experts, Todd Collins and Mark Attard, are retrofitting 1970′s-era houses in their neighborhood to achieve dramatic improvements in energy efficiency, comfort and value.

Alpen 525-S Series fiberglass windows with new Silverthorne metallic fleck paint.

Visitors were shocked to learn that the metallic silver-painted windows were not aluminum at all – they are Alpen 525-S Series fiberglass windows with new “Silverthorne” metallic fleck paint.

AE’s own Mark Attard completed the first retrofit at his own home. Attard credits the almost immediate tangible improvement in occupant comfort to his new Alpen high performance fiberglass windows (525-S Series) and to the addition of 4″ of exterior insulation (mineral wool) to all exterior envelope walls.

With the exception of some interior trim and crawl space work, almost all of the home’s Passive House principle retrofit measures were done on the exterior of the home, minimizing disruption to his family during the construction process.

To read more about this exceptional efficiency effort and other completed projects, check out AE Building System’s blog:

FLIR Thermal Images show the dramatic comfort difference between original aluminum windows and new Alpen 525-S Series windows

FLIR Thermal Images show the dramatic comfort difference between original aluminum windows and new Alpen 525-S Series windows

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Vermont Homeowner Testimonial Applauds Alpen Windows: Air-Sealing and Energy Upgrades Net Utility Reward

Wharton Residence,
Putney, VT – Southwest

Longtime suspended coated film (“Heat Mirror”) fan and nationally recognized window expert, Sam Wharton, recently replaced windows in his Vermont home with new Alpen 525-S Series casement and awning windows.

Wharton cleverly used two different sizes of simulated divided light grids to create a custom pattern that captured the essence of the home’s original double hung windows.

In a letter to Alpen HPP, Wharton praises the air-sealing and R-value improvements gained through his use of efficient Alpen high performance fiberglass windows, noting energy improvements were significant enough to net a large cash award from his energy utility provider.

Reprinted with permission, here is his testimonial:

I am writing to thank Alpen for the amazing contribution our new HEAT MIRROR glazed fiberglass windows have made to the appearance of and, more importantly, to the performance of our home.  The fenestration was a key component to the deep energy retrofit of our broad-faced cape in Putney, Vermont.

We knew that the window’s R-5 thermal performance would contribute mightily to the year round success of the building envelope, but, until our post construction Blower Door test, we had not thought all that much about the impact of the compression seal that characterizes the latched casements and awnings.  We blew the doors off of the Blower Door test!  The house passed with flying colors.  

With an estimated Air Sealing Reduction of 58.6%, and with estimated Annual energy savings of $1,430.00, the project qualified for and we received a cash incentive from Efficiency Vermont in the amount of $2,000.00.

 The strategically glazed Alpen windows were a key component of this most successful energy Energy up-grade.

Thanks, so much.

 Sam and Lani Wharton

Sam Wharton, BArch CSI

Window Specialist

Heritage Consulting Group
1120 NW Northrup Street
Portland, OR 97209
Phone: 802.490.0308
Cell: 802.490.0308
Fax: 503.241.9646

Wharton Residence,  Putney, VT - Southeast View

Wharton Residence,
Putney, VT – Southeast View

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9th Annual North American Passive House Conference: Sept. 10-14, SF Bay Area!

It’s that time of year again!  Time to celebrate all things Passive House at the North American Passive House annual conference.  This year we visit the sunny San Francisco bay area September 11-12.

Alpen HPP looks forward to a continued strong presence this year.  If you’re flying in, be sure to look out for the Alpen team:

  • Alison Ray and Leah Primrose will have exciting new products on display in the Exhibition Hall
  • Alpen Inc. founder Robert Clarke will again present during the High Performance Window break-out session about all that is new and innovative in the window world
  • A number of presentations and poster displays will also prominently feature Alpen high performance fiberglass windows in their envelope systems

See you there!


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Visit Alpen at Park City “Showcase of Homes Tour” this weekend

Hello Utah residents and vacationers!  This weekend is an excellent weekend to see Alpen high performance fiberglass windows installed and in-action.

3333 Meadows Dr.2014 Home #3” on this year’s Park City Area Showcase of Homes Tour uses Alpen 525 Series windows to create dramatic expansive window walls.

Our expert Colorado-based Sales Representative, Leah Primrose, will be on-site August 22-24, to discuss Alpen fiberglass products used in the home.

Expert builders of CD Construction, Inc. incorporated Alpen’s:

  • 525 Series Fixed Low Profile Windows,
  • “5L” suspended coated film glass
  • Certified high-altitude gas fill insulated glazing, and
  • Expansive 4-Panel Alpen Fiberglass Sliding Patio Doors

To create a modern luxury home with the comfort and efficiency demanded in this high altitude ski resort climate.

525 S-Series






Learn more about the tour:


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Custom Carpentry Accents Alpen Window Natural Wood Veneer

Alpen windows real wood veneer is showcased and accented in these stunning photos provided by Baltimore-based window dealership, Weathermaster Custom Windows.  Expert custom carpentry beautifully frames Alpen windows with real-wood interior veneer and real wood simulated divided light grids, proving that Alpen high performance fiberglass windows can provide the much-desired real-wood finished interior without sacrificing performance, beauty, or durability.

Photo Credits: Weathermaster Custom Windows

Weathermaster Weathermaster2

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Fort Collins Senior Center Expansion and Renovation Complete

July 11, 2014- Construction at the City of Fort Collins Senior Center wrapped this month with a grand opening celebration revealing results of a construction project that “has ushered the center into a new era and allowed it to evolve with the city’s growing senior population,” reports local news agency, The Coloradoan.

Alpen 525 Series windows are prominently featured on the new expansion and renovated building façade. Designers selected large Alpen picture windows fitted with 2″ simulated divided light grids to mimic the look of the previous outdated windows while updating the look of the new building with clean, modern lines. In addition to maximizing energy efficiency by increasing the amount of uninterrupted high R-value glass area, simulated divided light grids also drive down window cost by reducing the number of individual mulled or joined window sets.

Blending high quality design with efficiency and longevity, the new Alpen windows fit perfectly with the Senior Center’s forward-thinking vision and mission.

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Online sources for more information:

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