Modern Entry Door

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  • Product Features
  • Quote Request
  • Before & After Pictures
  • Contact Us
    • Contact USA
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Come See Us In Las Vegas

3/21/2016

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The Groke Modern Entry Doors will be on display at the International Door Association (IDA) Expo April 29th and 30th at the Las Vegas Convention Center. You can visit the SOMMER booth #223 to see why Design, Security, and Energy Performance are synonymous with Groke Door. 
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Why Aluminum Entry Doors?

2/26/2016

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Groke uses aluminum to build their modern entry doors.
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​Why Aluminum? Because it is so much more than just cans and foil.

Today aluminum is one of the most popular materials in use. Aluminum’s unique properties are the key to its versatility. 
  • ​Weight: Aluminum is 1/3 lighter than steel. 
  • Strength: The fact that it is lighter than steel does not affect its strength. Most all aluminum used today is an aluminum alloy, meaning it is a mixture of different materials.  This allows manufacturers the ability to create materials with a wide range of tensile strengths.  Unlike most grades of steel, aluminum does not become brittle at low temperatures. This is one of the reasons why aluminum is used in construction in the aerospace industry.
  • Formability: Because aluminum is softer than steel it can be formed and shaped many different ways.  Its superior malleability, either hot or cold, makes it a perfect material for extrusion.  Rolling, bending, forming, and cutting with less wear on the machinery make aluminum an ideal material for designing. This basic ability to form the material to adjust to the design in lieu of the design adjusting to the material be used have more and more industries moving toward aluminum as we see in the auto industry.
  • Corrosion Resistance: Aluminum reacts with the oxygen in the air to form an extremely thin layer of oxide.  This layer is thin but very dense and provides excellent corrosion protection.  This oxide layer is also self-repairing if damaged.  Aluminum does not rust like steel or iron. This oxidation is corrosion but it only formed to self-protect, a natural effect.
  • Recyclable and Sustainability: Aluminum is a material that is easily recycled. Manufacturing from recycled aluminum uses approximately 5% of the energy required to create aluminum from bauxite, the raw form of aluminum. And this material can be recycled over and over again. Nearly 75% of all aluminum ever produced is still in use today.
These unique properties of aluminum help make it the material of choice for industries such as transportation, aerospace, and building materials. And this list will continue to grow.  
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Aluminum Entry Door
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Aluminum Entry Door
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Aluminum Entry Door
Aluminum is the most common metal found in the earth’s crust (approximately 8%) and is the third most plentiful element known to mankind. Only oxygen and silicon (sand) exist in greater quantities. It wasn’t until 1808 that British electrochemist Sir Humphrey Davy established the existence of aluminum and not until Danish scientist Hans Christian Oersted produced the first tiny pellet of the metal 17 years later. It took many years of experimentation before a process was developed for aluminum production. The first production companies were not established until 1888 (one each in the US, France, and Switzerland). Through the early 1900s with this new process the price of aluminum continued to reduce as the demand continued to rise.
​By the end of World War II the stage was set for aluminum to become the most widely used non-ferrous metal in the world.
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Passive House Entry Door

2/11/2016

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Groke entry doors U-Factor range from .257 all the way down to an impressive .13, making them ideal for use as a Passive House Door. 

All Groke door configurations meet European air leakage Class 4, with the exception of double in-swing doors which meet Class 3 criteria, still within the Passive House performance requirements.  

While Groke custom doors are very suitable for Passive House doors, they are equally at home in other applications from new construction to retrofit... and of course deep energy retrofits.  Whether the building is old or new, modern in style or traditional, everyone appreciates a finely crafted door that offers superior thermal performance, serious security protection, and long term durability all in one beautiful package! 
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Doors are often the “weak link” in modern, high performance buildings, but they don’t have to be. Our standard multi-point locking, combined with multiple levels of uninterrupted gaskets offers a very tight seal that keeps your valuable and comfortable conditioned air inside, where it belongs.  

Whether your goal is Passive House certification, Net Zero, LEED Platinum or another green building standard, we applaud your efforts we’re excited to help you achieve your goals.  

If you’re just looking for a really great door that offers more comfort, style, energy savings, and peace of mind… we’ve got you covered too! 

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US Builders Review Case Study

12/1/2015

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Entry Door Case Study
While the company is new to the United States market, Groke / SOMMER USA Inc. (Groke) is having no issue making its mark. Groke manufacturers customized modern doors for high-end residential and light commercial applications in both new and retrofit construction, many of which exceed Energy Star 6.0 requirements. Initially a European-based company, Uwe Sommer and Gerd Schaaf founded the United States-based operation in North Carolina in 2007.
us_builders_review_groke_door.pdf
File Size: 1285 kb
File Type: pdf
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Visit us at the ABX 2015 in Boston

10/13/2015

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ABX is the leading building industry event in the Northeast and your continued destination to MAKE things happen.
Find the latest in industry trends by attending one of nearly 200 sessions or perusing the marketplace on the show floor.

Groke is going to show the latest trends in the modern entry door industry.

​Come and visit us at booth #313.
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What makes a Groke Entry Door different?

9/14/2015

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All Groke Doors are designed around three basic criteria; Style, Efficiency, and Security.

Every step in the manufacturing process strives to reach the highest possible level for each of these.  Groke uses the latest CMC technology to create our computer generated styling and true German craftsmanship to assemble a product that meets our highest quality controls.

This is what separates Groke from every other door:

Style:
  • Styling that captures the contemporary, modern, or mid-century modern look.
  • Over 65 unique model designs. 
  • True Custom looks with Groke.  If you provide a drawing of a design it is possible that our manufacturing process can create the look you want to achieve.
  • Our powder coat paint system provides over 200 custom RAL colors plus 12 Decoral wood look stain finishes.
  • All doors can be manufactured to custom sizes to fit almost any application. Single doors widths up to 4 ft. and heights over 10 ft. Our double door systems can provide for a clear opening of to 8 ft. wide.

Energy Efficiency:
  • All doors are designed to meet all European Energy Standards.  These standards far exceed our North American standards.  All our products use the U-Factor rating system.  
  • All full glass models have a .257 U-Factor Rating.
  • All solid door models (no widows) range from a .22 U-Factor (34mm) to a .13 U-Factor (94mm).
  • All doors have multiple seal levels that create a continuous thermal break around the complete unit, including the threshold. Because of this design the Groke product meets European air leakage Class 4 (the highest class).

Security:
  • All doors come standard with three-bolt hook locking.  Other multi-point locking options are available such as bio-metric fingerprint scanners, motorized strikes to function with a home security system, etc.
  • All doors have a top and bottom bolt lock on the hinge side to prevent the door panel from being levered out in the event of a break-in.
  • All doors have heavy duty European type hinges having a load bearing force up to 350 lbs. per hinge.
  • Multi- chambered aluminum profiles with wall thicknesses up to 3mm provide a structural framework with unmatched rigidity and strength.

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Visit us at America's Largest Design Event

4/24/2015

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Conference and Exhibition | May 29-31

Groke Door is going to be at the Dwell on Design Show in LA. Come and check out our modern entry doors at our booth #2235.  
A three-day exhibition and conference, comprised of one trade day and two consumer days, at the Los Angeles Convention Center featuring world-class speakers, product demonstrations, continuing education classes for design professionals, and seminars for design-seeking consumers. Each year, Dwell editors carefully craft a program that invites you to “step into the pages of Dwell” and experience modern design.
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  • 400+ Exhibitors presenting 2000+ products
  • 250,000 square feet of Exhibition space to explore
  • 250+ Speakers on 3 stages
  • 3 days of Continuing Education Seminars
  • 450+ registered Press
  • 5+ Full-scale prefab homes
  • 2 days of Ride and Drives
  • International & Cultural Pavilions
  • Student Design Gallery and More
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Energy Performance of Entry Doors: R-Value vs. U-Factor

4/24/2015

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You hear the terms U-Factor and R-Value a lot but do you really know what it means? Both are measures of energy performance but are reached in very different ways.  Most of us know that the higher the R-Value the better the insulation and therefore the better the energy savings for our homes.  We also understand that if the R-Value is high then the U-Value or U-Factor is low.  In order to understand how these ratings can help us make wish decisions about investing in energy savings we must clearly understand what the ratings mean.

R-Value is a measure of resistance to heat flow.  Generally, R-Value is given for a certain thickness of specific material, such as fiberglass wall insulation.  The R-Value of a structure can be estimated by simply adding up the R-Value of each material that makes up the layers in the wall (exterior sheathing, insulation, interior drywall, etc.).

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Custom Entry Door

12/15/2014

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One of the many wonderful things about Groke custom aluminum doors is the fact that they are all truly custom made for your home or building application so your door is the perfect fit and specification.  Many of our customers love the fact that we can build very wide entry doors… up to 45.5 inches wide usable opening width for single doors(51 inches wide to the outside edges of the jamb).  

Depending on architectural constraints, having the ability to specify your rough opening width is a great opportunity to go wide!  There are many benefits to having a wide door such as increased accessibility for wheelchairs or baby strollers, greater convenience when moving furniture in or out, or simply to make an impressive visual or aesthetic impression.  Having a wide, beautiful custom door is easy with Groke!
“Custom” is a word you will hear a lot when looking for doors and the term can mean a few different things.  In reality, there are different levels of customization available from different manufacturers, and some doors are certainly more custom than others.  Often times, the need for a custom door is driven by the fact that the application requires an unusual size.

Let’s explore the sizing issue a little deeper.

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Groke at Greenbuild 2014 in New Orleans

10/22/2014

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Thank you for joining us in the great city of New Orleans for Greenbuild.

The music of the green movement is undeniable – its lyrics are engaging individuals across the world, its innovation is reviving our spirit and its passion is fueling the future.

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SOMMER Group
SOMMER Group
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Phone: 844-604-7653
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