štvrtok, 28. októbra 2010

Autum is approaching fast - you can see it on the colors. Today was the first day with temperatures below zero at night.

From Strawbale Dome Minke


Inside we have finished most of the window sills. First the wood fibre boards got "painted" with clay slick:

From Strawbale Dome Minke


then plastered:

From Strawbale Dome Minke


From Strawbale Dome Minke


with a great result:

From Strawbale Dome Minke


We removed the "coffee" plaster, just to make it again - but this time without the bleeding of the coffee beans.... hopefully.

From Strawbale Dome Minke


Outside work is progressing as well. The metal covers are also nearly finished - but one day work for each vault...!

From Strawbale Dome Minke


And with a bit of bad luck we also broke a window - luckily on the only window that was not finished inside!

From Strawbale Dome Minke


The last window sills on the outside got mounted. The technique we used to glue them to the glass works fine, really strong bonding if you use special primers for glass and metal and use 3M acrylic tape. For straight sills the 1mm tape would be perfect, but because of the bent border a 2mm thick tape would have been a better choice.

From Strawbale Dome Minke


Some plants were moved from the field to the area around the entrance. A preliminary door opening has been made.

From Strawbale Dome Minke


As you can see the bags are slowly covering the whole dome. Exciting last few meters of the dome to be covered...

From Strawbale Dome Minke


Not enough bags!!! More filling to be done:

From Strawbale Dome Minke


and planting:

From Strawbale Dome Minke


The dome is holding up well - no cracks on the inside to be seen.

From Strawbale Dome Minke


Nice view of the entrance in the evening sun. Never thought the yellow and red bags would look that good, great autumn colors!

From Strawbale Dome Minke


A big THANK YOU to all the volunteers that have been helping us out the last few weeks!

More to come - the ventilation unit has arrived, and will be mounted the next few days...

sobota, 9. októbra 2010

Weekend Green Roof Workshop

Today we got up a bit late - the workshop started at 10 o`clock. But we still got a lot done. First we had to get the EPDM in the right position, and glued to the skylight at the top. The EPDM stretches easily, which is a great help but also makes work sometimes difficult. We had to pull the EPDM back up because it stretched too much at the skylight:

From Strawbale Dome Minke


We put some geo-textile across the dome, but difficult to walk on it because it became very slippery. We should have fixed the skylight plexiglas before covering with any geo-textile, would have been easier. The geo-textile was then weighted down with bags of earth.

From Strawbale Dome Minke


In the lower parts we choose to work without geo-textile, because it would slide down and anyway, the earth has no sharp stones. We managed to get one valley finished, the bags are heavy but work well.

From Strawbale Dome Minke


We are fixing the EPD with some pieces of oak on the outer walls, with a enough material for the valleys. Then we cut the EPDM along the outside of the oak. The top part of the wall will later be covered by titan-zinc alloy sheets.

From Strawbale Dome Minke


Tom Rijven is inspecting the windows. They are now taped from the inside and insulated, so we can start making the last clay layers around the windows tomorrow.

From Strawbale Dome Minke


We will not finish the green roof tomorrow, so more workshops will be necessary... :-)

piatok, 8. októbra 2010

Last few weeks...

And we are back! The last few weeks we have been waiting for the Dome to dry. The plaster dried fairly quickly, also the floor inside. But the moisture levels in the straw bales has been difficult to understand. Even after weeks of drying the plaster the moisture level in the middle of the straw bales increased from 85%RH to 90%RH. The sensors in the straw bales just below the outside clay plaster has been increasing with higher outside temperatures and lower with at low temperatures - the opposite of what I would expect. The average moisture level in these areas are about 95%RH... of course the weather has not been very kind, here one of the rainy and windy days, but the clay still seems to be fairly dry.

From Strawbale Dome Minke


After the floor dried (took about 10 days) we put the windows in. Then I taped them from the outside. And we started to heat the inside:

From Strawbale Dome Minke


Domas from Lithuania stopped by with his friends on the way to Italy - we had a great evening!

From Strawbale Dome Minke


The border between the floor and the walls that had been covered with cardboard had to be fixed. The gap has been filled in by Catalina today. She arrived from Hungary yesterday. Now this part is also air tight:

From Strawbale Dome Minke


From Strawbale Dome Minke


From Strawbale Dome Minke


And the big news: we decided to take the roof down and put the EPDM on. Here is the roof cover being taken off:

From Strawbale Dome Minke


From Strawbale Dome Minke


On some spots some dew in the morning had been dripping down from the tent, so a hairdryer was used to dry the clay surface:

From Strawbale Dome Minke


The EPDM from Athos Syntec arrived in one roll and needed to be refolded on the nearby field:

From Strawbale Dome Minke


From Strawbale Dome Minke


Then we started to take apart the wooden construction - this was not too difficult:

From Strawbale Dome Minke


Even the last element was standing nearly on its own - really a good design:

From Strawbale Dome Minke


From Strawbale Dome Minke


First picture without the roof!

From Strawbale Dome Minke


We were putting geotextile around the wooden parts to protect against any sharp elements:

From Strawbale Dome Minke


The concept I had to put the EPDM on worked much better than we thought - after lifting the EPDM up it took just a short half hour to cover the whole structure!

From Strawbale Dome Minke


The hole in the middle is 90cm diameter - just a bit smaller than the frame to have a good fit:

From Strawbale Dome Minke


The membrane was then lowered onto the structure, and gravity did the rest of the job:

From Strawbale Dome Minke


From Strawbale Dome Minke


The membrane is definitely big enough, big chunks will have to be cut out:

From Strawbale Dome Minke


The membrane covers everything - tomorrow we will adjust the EPDM, fix it and cut off the parts in front of the windows:

From Strawbale Dome Minke


In the evening Tom Rijven arrived from Poland! Another nice evening:

From Strawbale Dome Minke


Tomorrow we hope to get a better fit for the membrane and then we will start with the green roof! Will be back with an update!