Choose a 100% containment option for futureproofing
Full containment option
There are two styles of Redpath clear-roofed full containment options, with each style designed to suit the individual farmers needs.
The shallow bunker with concrete base is simple in design and not unlike a standard feedpad. Redpath can arrange to pour the floor as part of the build or it may be installed by the farmers preferred local concrete contractor.
The deep bunker system incorporates the best of both worlds with 100% containment plus a deep litter floor for superior resting time.
Version (1) "SHALLOW BUNKER" system
The "shallow bunker" design offers the farmer a full containment system , and works like a standard concrete feedpad in many ways.
The pad design includes exterior concrete kerbing to retain effluent on the pad and a run off catch tank is placed at the end of a central V drain. The clear Durashelter roofing has a large drying effect on the solids left on the feedpad, - and it will require scraping clean on an "as and when needed" basis.
Some farmers choose to spread a temporary layer of woodchip onto the concrete "V" floor during winter to provide a more comfortable resting area that allows longer standing off periods. Rubber matting is as another option.
Version (2) "DEEP BUNKER" system
The deep Bunker 100% containment design features a dedicated liner and a combination of clay and rock as its base. A deep layer of woodchip litter is then placed on top.
The "deep bunker" design provides a full containment system but with the added benefit of retaining the well proven Redpath deep-litter floor for superior standoff durations and wintering.
This system also incorporates a catch tank placed at the end of the underfloor drain to contain any wet material that might manage to filter through the deep litter system. The catch tanks size is dictated by the planned housing density (cow per m2) the depth of the litter and standing off period.
The 500mm deep bed of litter placed into the bunker provide a long-term stand-off period with solids retained within the litter for the duration of the season. The litters ability to absorb the bulk of the available effluent is well proven, and this is due to its very high surface area for absorption and also the action of the clear Durashelter roofing that is constantly drying the litters top surface.
The deep bunker litter will typically be regularly stirred and mixed to maintain its cleanliness and consistency and also its freedraining nature.
When building a 100% containment Redpath deep bunker system the farmer has a choice of selecting a turn key installation, or they may wish to complete the relatively straight forward site preparation and supply the metal, clay and litter materials themselves using local suppliers. This will usually offer some cost savings.
Note: A full concrete base is also available for this base design, which eliminates the liner but increases costs.
See also Duraliner underfloor membrane click here
Contact Redpath on Free Ph 0508 733 728 for more information on these systems !Enquire now