The construction is made of galvanized steel tubes in the system of repeatable arches, trusses braced with spandrel beams fixed along the tunnel give it rigidity. The construction is screwed with galvanized bolts and special clamping rings are used.
This type of construction is applied for 2 or 4-row, 5 or 6 shelving beds mushroom growing.
Rooms are connected to the corridor which can be central or side depending on the investment and plot size.
Foundations and foundation beams - performed by Investor on the basis of Champion`s executive documentation. Gable walls made of silica brick or concrete, insulated , made by Investor in accordance with Champion’s executive documentation /as an option possibility to perform gable walls out of galvanized steel construction and sandwich panels with poliurethane core/.
* Optimizing of construction weight depending on climate zone and low conrete usage for foundation works
* Durability – high quality steel construction without welded elements – it is completely mounted with stirrup bolts and system joint.
* Hygiene – smooth zinc structure does not create damages of an internal tarpaulin and it is to keep it clean
* Safety - internal and external tarpaulins made of HDPE/LPDE. The tarpaulins are specially tailored to the size of the tunnel and are welded under precize computer control. The tarpaulins pass water vapour on a very low level and they are not very prone to thermal shrinking( high resistance during thermal desinfection of the rooms). External tarpaulin has additional UV filters ( that protect it against damaging sun radiation), white internal trauplin increases amount of light in the room.
Glass veil used as reinforcement of glass wool prevents from disruptions, both during the montage as well as during cultivation.
*Short time of implementation - the assembly of a room together with a gate and door takes about 7-10 days depending on the tunnel’s lenght. The mushroom production can be started very quickly. All of the elements can be totally disassembled which allows transportation of the building to another place or selling of the complete tunnel .
* The climate inside the building – thanks to the shape of a tunnel we obtain a very good air circulation and a stable climate during all the stages of the cycle. Therefore, in our buildings mushroom farmers get very good crops in terms of amount and quality.
* Cost-effectiveness – cheap alternative for buildings with traditional construction
* Special tunnel`s shape assures good air circulation and stable climate during the growing cycle what results in better quality and quantity of the yield
* Hygiene and durability of corridor and social part with cold storage thanks to using galavanized steel construction and sandwich panels made of zinc covered metal sheets coated with polyester.
GROWING TUNNELS
- Construction: steel, galvanized
- Covering: made od 3-layer tarpaulin separated with mineral wool reinforced by glass veil – total thickness is 18 cm, what assures perfect insulation. Covering is fixed to the walls and pedestal by aluminium slats with PCV liner assuring safety and durability of fixing
- Very good heat transfer coefficient
- 2 or 4-row, detached
- Recommended length – 24 m or other
- Recommended width – 6,70 m (2-row tunnel), 12,25 m (4-row tunnel)
- Maximum height in construction axle: 4,85 m (2-row tunnel) and 5,45 m (4-row tunnel)
- Recommended growing area – 281,40 m² (2-row, 5 bed shelving) and 562,80 m² (4-row, 5-bed helving) or other according to Client`s expectation
CORRIDOR, SOCIAL PART WITH COLD STORE
- Construction: steel, hot-dip galvanized
- Light covering: sandwich panel with polyurethane core
- Corridor`s wall thickness 80 mm / Uc coefficient 0,26 (W/m²K)/; social and cold store wall thickness 60-100 mm depending on individual needs
- Corridor, social part and cold store roof panel thickness 100/140 mm /Uc coefficient 0,20 (W/m²K)/
- Central/side corridor with single-pitched, independent roof
- Social part with cold store in polar location towards growing rooms and corridor
