Going Up: Three Monolithic Fertilizer Storages in Estonia
![Monolithic’s Airform being inflated.](/vault/img/2013/04/24/51782864c29e069d06000003/medium/img_0022.jpg)
Monolithic’s Airform being inflated. (Jan Pregowski)
![Monolithic’s Airform being inflated next to the existing equipment.](/vault/img/2013/04/24/5178286bc29e069d06000004/medium/img_0023.jpg)
Monolithic’s Airform being inflated next to the existing equipment. (Jan Pregowski)
![Jan Pregowski stands next to newly inflated structure.](/vault/img/2013/04/24/51782872c29e069d06000005/medium/img_0024.jpg)
Jan Pregowski stands next to newly inflated structure. (Jan Pregowski)
![Newly inflated Airform is now ready for construction.](/vault/img/2013/04/24/51782877c29e068cb6000001/medium/img_0025.jpg)
Newly inflated Airform is now ready for construction. (Jan Pregowski)
![Airforms are spread over the equipment used to build the dome.](/vault/img/2013/04/24/5178287cc29e06012e000001/medium/img_0026.jpg)
Airforms are spread over the equipment used to build the dome. (Jan Pregowski)
![Top of the Airform. Seams are visible from the inside of the structure since the material is translucent.](/vault/img/2013/04/24/51782881c29e067fac000003/medium/img_0027.jpg)
Top of the Airform. Seams are visible from the inside of the structure since the material is translucent. (Jan Pregowski)
![After the primer is sprayed, they can begin to apply the polyurethane foam.](/vault/img/2013/04/24/51782886c29e06012e000002/medium/img_0028.jpg)
After the primer is sprayed, they can begin to apply the polyurethane foam. (Jan Pregowski)
![Polyurethane is sprayed in layers and is typically 3" thick.](/vault/img/2013/04/24/51782891c29e067fac000005/medium/img_0030.jpg)
Polyurethane is sprayed in layers and is typically 3" thick. (Jan Pregowski)
![Airform pictured before it left the factory in Italy, Texas.](/vault/img/2013/04/24/5178289ac29e067fac000006/medium/img_1220.jpg)
Airform pictured before it left the factory in Italy, Texas. (Jan Pregowski)
![Jan’s crew gets ready for the first inflation.](/vault/img/2013/04/24/517828dbc29e06012e000003/medium/img_0017.jpg)
Jan’s crew gets ready for the first inflation. (Jan Pregowski)
![Here the crew is pictured spreading the Airform.](/vault/img/2013/04/24/517828dfc29e06012e000004/medium/img_0019.jpg)
Here the crew is pictured spreading the Airform. (Jan Pregowski)
![Here the crew is pictured spreading the Airform.](/vault/img/2013/04/24/517828e4c29e06012e000005/medium/img_0020.jpg)
Here the crew is pictured spreading the Airform. (Jan Pregowski)
![Here the crew is pictured spreading the Airform.](/vault/img/2013/04/24/517828e9c29e06012e000006/medium/img_0021.jpg)
Here the crew is pictured spreading the Airform. (Jan Pregowski)
![Now the pre-mat is installed. The pre-mat is a sacrificial layer of rebar that is installed and embedded with concrete. The pre-mat gives an initial structural layer and a mounting platform for the balance of the structural rebar.](/vault/img/2013/04/24/517828edc29e06012e000007/medium/img_0038.jpg)
Now the pre-mat is installed. The pre-mat is a sacrificial layer of rebar that is installed and embedded with concrete. The pre-mat gives an initial structural layer and a mounting platform for the balance of the structural rebar. (Jan Pregowski)
![Door with Airlock. The Airlock is the only means of entering and exiting the dome while it is inflated.](/vault/img/2013/04/24/517828f2c29e06012e000008/medium/img_0039.jpg)
Door with Airlock. The Airlock is the only means of entering and exiting the dome while it is inflated. (Jan Pregowski)
![Initial shotcrete is sprayed to embed the pre-mat.](/vault/img/2013/04/24/517828f7c29e06012e000009/medium/img_0041.jpg)
Initial shotcrete is sprayed to embed the pre-mat. (Jan Pregowski)