Airlock entries improve energy efficiency

Airlock entries improve energy efficiency


An airlock entryway (vestibule) has two airtight doors that reduce the amount of air infiltration and heat loss when the exterior door is opened. They create a buffer area to block the wind and improve energy efficiency. Double door airlock entries are common features in energy-efficient homes in cold climates, but they also reduce air conditioning costs in hot climates. The airlock entryway shown above includes two insulated doors, coat closet, washer and dryer with shelves, window for daylighting, and a bench for changing shoes. The Popular Science article linked below shows four ways to build airlock entries.

Native Spirit house plan
Popular Science: Four Ways to an Add-on Air-lock Entry


Comments

Airlock Entryways — 10 Comments

  1. AIRLOCKS , ESPECIALLY ON OLD HOUSES , ARE VERY WEIRD AND OLD FASHIONED .

    IN MODERN TIMES , WHERE ENERGY IS NOT SCARCE… [edited].

    • This sounds like a troll message. You’ve got to be kidding “In modern times where energy is not scarce.” I guess you’re fie with all the oil wars, fracking pollution, Gulf spill, etc.?

      Airlocks are not primitive. Like many natural building concepts, they’re based on hundreds or thousands of years of use.

  2. It feels like home when talking about “vestibule” and “Jordkjeller”. Well swedish norwegian Danish its all the same…. (almost)

    My grandmother had almost this. In the winter she had double doors. One opening inwards and one outwards mounted with some air in between. And in the summer she just hooked off the winter door. And no slowpoking and running too much in and out there.

    • It would be pretty easy to add an airlock entry to the Enviro Dome. The main difference is everything is curved, so it’s a bit more work. The key step would be embedding anchors/blocking between courses of earthbags in the right locations as you build. The roof would attach to the anchors/blocking. Use the same method to build a larger structure such as an attached greenhouse. Read the Popular Mechanics article for more details. It’s mostly general carpentry. You could use a combination of partial earthbag and wood walls if you want more sunlight. Adjust the roof overhang to your climate.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.