Thursday, June 27, 2013

A Greek island Passivhaus

Green Building Store’s Communications Manager Chayley Collis discovers more about the Passive House Paros project, while on a family interrailing holiday to Greece

Tuesday, April 2, 2013

"WHY WE FEEL A PASSIVE HOUSE IS RIGHT FOR US". Two young people decide for a better future.

We’ve touched on what a passive house is, the Passivhaus Standard and why we’re a-bloggin’. We’ve shared our research process with you as honestly as we could, much to the horror of some of our engineer friends out there – but we’re honest about how we approached figuring out where to start on our path. Consumer reality is often not as ‘organized’ as the industry experts might hope, and we feel it’s important to be true to our reality.

And it was at this point that we visited the Building Green Expo in November 2012. We’d spoken to a number of engineers before then, but it was at the Expo that our eyes were finally opened! We met with another 3 experts after the Expo, and after speaking with Stefanos Pallantzas from Project 15 and Nasia Roditi from Architect Lab we found the knowledge, expertise and chemistry we hadn’t even realized we were looking for.

Tuesday, February 19, 2013

A new journey starts

A different and unique project starts, on one of the most favorite Greek islands - Paros! Follow step by step the construction of a Passive House (PassivHaus) through the first "Home Diary" in Greece! Project15, together with Green Evolution and ArchitectLab, are the project's major partners.

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Tuesday, January 22, 2013

Our new journey begins

This build will be one of the first Passive Houses in Greece and the first on the island of Paros. Quite possibly on all of the Greek Islands. So we’re very much learning as we go along. And because the philosophy of Passive House just makes so much logical sense to us, we feel it’s our duty to share our learnings, our experiences and even honest frustrations as we go along with anyone interested to listen.

PASSIVE HOUSE PAROS – A Greek Island Passive House Project

Wednesday, November 16, 2011

What is a Ground-Air Heat Exchanger?

Ground-Air Heat Exchanger (GAHE) systems are nothing new. In fact the Romans first used a type of GAHE in what would become their great hypocausts heating the caldariums and tepidariums of their great bathhouses. These underground chambers, constructed as they were into the foundations of buildings, where essentially passages where heat or coolth was exchanged between hot furnaces or the cool ground as a way of conditioning rooms above to the desired temperature. While the hypocaust system is rarely built today, the GAHE concept is still common in Europe where a tradition of low energy buildings, lengthy perceived life-cycles for structures, and a broader interpretation of the human comfort range, make the systems very attractive.

The touted benefits include:

  • Provides controlled fresh air ventilation that is filtered for dust and allergens
  • Significantly reduces the amount of additional energy required to heat and cool a building, especially when combined with a heat or energy recovery ventilator (HRV or ERV)
  • Lowers the relative humidity
  • May eliminate the need for a central air conditioner in temperate climates
  • Requires only a small amount of electrical power to operate an air intake fan
  • May eliminate the need for defrost cycle in an HRV

Sunday, October 23, 2011

6 reasons to build or retrofit with ‘Passive House’

                    Extremely Energy Efficient Building up to 90%
                    saving of  heating &  cooling cost
                     In numbers: this is a 15 € bill in one winter month

                   High Indoor Air Quality
                   Continues mixture of intake and indoor air, consistent supply  of fresh air
                   No allergies
                                   Variable indoor air temperature
                                   No sleep disturbance
                                   No foggy windows, mirrors
                                   No moisture in walls
                Operational Savings
                Elimination of maintenance for heating and cooling systems
                Fast reduced energy bills
                                  Maintenance cost are drastically dropped down
                                  Net Zero energy can be reached faster ( small solar system required )
               No Limit for the Building Stock
               Passive Houses can be a small Lane Way house or a Skyscraper.
               It can be build conventional,as Pre- fab, with concrete, bricks or with steel.
                                 No design limit
                                 No material restriction ( local material supplier)
                                 No limitation for location *
              Renovation or Retrofit of old Building Stock are possible
              An extremely improve of energy efficiency, while decreasing CO2 emissions.
              New windows
                                 Extremely good vapor barrier
                                 Super Insulation
                                 Elimination of  thermal bridges
              Real Sustainability
              Passive Houses are friendlier to the environment because of their:
              Minimal energy & fossil fuel consumption
                                 Reduce the CO2 emission
                                 Passive House exceeds the current standards