blinds. Sunday , July 09th , 2017 - 06:38:03 AM
The most effective air curtain design for insect control has a nozzle that can angle the air stream away from the area to be protected. An angle of about 20 from the vertical is usually optimal. The unit should meet or exceed UK Department of Agriculture and US Federal Drug Administration standards, which call for an air stream of 50 mm to 120 mm wide at the nozzle, capable of producing a minimum velocity of 8 m/s of air 1 m above the floor and across the entire door opening to ensure there are no gaps for the insects to enter.
Roller Blinds ranges typically offer the largest choice of fabrics option but again due to their design allow too much light into the room. The size of the brackets used to hold the blind up results in the width of the fabric being around 33mm narrower than the width of the blind including its brackets, therefore allowing light into through that 33mm of the window recess.
The track also feature 90 bends which allow a complete closure of the curtain. Another important consideration is the construction of the curtain, it is also important to make sure that it's constructed out of galvanized steel. This will prevent premature rusting which would result in poor performance, or at worst, require you to purchase an entirely new curtain track.
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