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Draught-free Micro-climate for Optimum Protection of Your Calves


When issues arise in the calf barn, they are often due to poor ventilation. Frequent respiratory disorders clearly indicate a poor micro-climate in the barn. It is rewarding, though, to look at mother nature and allow her to work for you. To learn how the H&L Igloo makes this possible, read on!


Offer Your Calves Shelter


  • Draughts in their resting area affect your calves and cause diseases. That is a well-known fact. On the other hand, a high airflow rate has to be ensured in traditional calf housing facilities to replace stale and bacteria-contaminated air.

  • In particular, calves that are only a few weeks old are unable to compensate this undesired effect with an increased body temperature.
  • With a H&L Igloo, you offer up to 15 calves a draughtfree, yet well-ventilated shelter.



Set up a Unique Ventilation System


  • The hemispherical shape of the Igloo creates a specific ventilation effect: wind that hits the outside of the Igloo will result in negative pressure at the top of the dome (Bernoulli's Principle). As the ventilation shafts are placed exactly at the spot where this happens, stale air will be positively exhausted from the Igloo.
  • Additionally, this effect is helped by the thermal behaviour of air that should be exhausted, which is warmer and rises to the top of the dome. Therefore, no draughts will form in the calves' resting area.
  • Ventilation inside the Igloo is enhanced further by the stack effect (height difference between air intake and air output).
  • Fresh air is supplied to the Igloo through the entrance. The fact that this opening is 12 times as large as the exhaust ventilation shafts, will result in the desired low air velocity in the calves' resting area.


Never Make it Too Warm—and Never Too Cold


  • A specifically engineered coating of the Igloo results in maximum reflection of solar energy. For this reason, the temperature does not rise excessively inside the Igloo and it offers the calves a cool spot to relax, even on a hot summer day.
  • At the very minimum, the temperature inside the Igloo is always substantially lower, even when fully exposed to the sun, than it is in the direct sunlight.
  • Also, the winter temperature inside the Igloo does not differ much from the ambient temperature, so animals will not begin sweating, which could lead to considerable problems.
  • Overall, the calves' organism and, especially, their coat adjust to the low temperatures and they develop outstandingly. Please read the suggestions for winter management provided in our daily operation tips for housing.

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