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Greenhouse roofs can open either by retracting or by
rotating the roof sections on a hinge. The choice of
roof covering usually dictates which method of opening
the roof is more advantageous.
If a rigid covering like glass or polycarbonate is
desired, then a hinged open roof design is required.
If a flexible roof covering polyethylene is normally
your preferred roof covering, hinged & retractable
are options.
To see a short slide show which outlines the difference
in growing environments between a retractable roof and
a hinged open roof click
here.
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