Modern Entry Door

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  • Home
  • Modern Entry Doors
  • Product Features
  • Quote Request
  • Before & After Pictures
  • Contact Us
    • Contact USA
    • Contact UK
  • Resources
    • Catalog & Instructions
    • Aluminum Material
    • Videos
    • Traditional Doors
  • About
    • About
    • News
    • Terms and Conditions
    • Privacy Policy

Passive House Entry Door

​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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Why Passive House?    
  • Protection for building owners from future energy price increases
  • Great return on investment
  • Increased comfort due to more-uniform interior temperatures (this can be demonstrated with comparative isotherm maps)
  • Reduced requirement for energy austerity
  • Reduced total cost of ownership due to improved energy efficiency
  • Reduced total net monthly cost of living
  • Extra cost is minimized for new construction compared to a retrofit
  • Higher resale value as potential owners demand more ZEBs than the available supply
  • The value of a ZEB building relative to a similar conventional building should increase every time energy costs increase
  • Future legislative restrictions, and carbon emission taxes/penalties may force expensive retrofits to inefficient buildings

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SOMMER Group
SOMMER Group
Groke USA
Charlotte, NC
Phone: 844-604-7653
Contact Us
Groke UK
Elvington, York
Phone: +44 1904 608787
Contact Us
Groke Germany
Headquarters
Phone: +49
721 59820
www.groke.de

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