• 3~6℃ increase in the temperature inside the film-house where the duck feather product is installed
• As a result of repeated washing and drying of the duck feather thermal curtain and the cashmilon product, the decrease in the warmth rate of the duck feather thermal curtain was much less, which shows a greater difference as long-term use. – Longer life span is expected by keeping good thermal and insulating

As duck feathers don’t absorb water even raining condition, they are 10 tons lighter than cashmilon cover.

• 10 tons lighter
• Prevention going down of film-house
• Switch working smoothly
• Fast recovery of warmth

• Accordding to result of joint research from Foundation of Agri, Tech, Commercialization & Transfer: Chinese Academy of Agricultural Sciences, an output of cucumber was 31.9% more and the quality was also excellent.

• The thickness and weight of the duck feather thermal insulation cover is 1.5 times thinner and lighter, so it is convenient to use. At the same time, increased productivity is achieved by low maintenance costs and excellent thermal effect.

• Temperature change after installing the duck feather exterior cover in winter.
• It is well shown in the experimental results that the outside cold air is well blocked and the internal temperature is raised.
• By adjusting the time to cover, the internal temperature can be increased by 2-3 degrees.

(Temperature : ℃)

• Chinese-style film-houses require a lot of time and money by stacking stone walls on one side of the wall, but houses made of duck feathers save time and money, as well as heat insulation, which increases the quality and production of strawberries, which is a huge benefit for farmers.

• According to data from the Ministry of Agriculture, Food and Rural Affairs, heating expenses account for 30-40% of the operating expenses of facility film-houses, and because they are concentrated in oil heaters (88% of heated area), international oil prices are vulnerable to a surge.

• Energy expenses savings = 378.2 billion KRW / year
  15,100ha (Heated film-house area nationwide) x 9,075 ℓ (difference) x 4 (number of months used) x 690 KRW (tax-free fuel)
• Reduction of carbon dioxide( CO₂ ) = 1.4 billion tons / year

  ① Amount of combustion (MJ) = 548,130,000 ℓ × 35.5((MJ / ℓ)
  ② Carbon emission (tC) = 19,458,615,000 × 20.2 / 10³
  ③ Carbon dioxide emissions ( tCO₂ ) = 393,064,023 × 44/12 = 1,441,234,751

※ Since chemical cotton requires energy in the production process, it generates more carbon dioxide than the natural material, duck feather.

• External-wrapping formula

  sack + felt 40g + cotton 3oz + duck feather 8oz + cotton 4oz + felt 40g + sack

• thermal insulation rate
  92.4%