Locating a Greenhouse:
The
location of a greenhouse should be chosen
very carefully. During the
harsh winter months, the
position of the greenhouse should receive at
least
six hours of direct sunlight. Shelter from high
winds and from
excessive water buildup should
also be a consideration. Finding a
location that
is close to water and electricity and is also easily
accessible from both home and garden, combined
with the above
considerations, should make for a
very happy gardener.
For
best heat gain during the winter, an east-west position is the best
choice, providing the maximum solar heat gain. Since the sun is much
lower during the winter months, southern exposure might be restricted:
In this case, simply turn the greenhouse to a position that will allow
the maximum amount of winter sun to penetrate it.
Foundations:
IT
IS CRITICALLY IMPORTANT THAT FOUNDATIONS ARE SQUARE AND LEVEL
for the
greenhouse to be assembled correctly and all parts to fit.
There are a number of common types of greenhouse foundations used:
*- A poured concrete slab.
*- A concrete foundation to frost line.
*- Pressure treated lumber 4×6.
Before you start, check your local building code requirements.
Recommendation
Most
Essex Greenhouses can be installed using 4” x 6” pressure treated
lumber. This should be set on the 4” edge and buried to about 4” to 5”
below ground level. The corners are fixed using 6” angle brackets. The
additional weight of 4” x 6” over 4” x 4” should be adequate to hold the
greenhouse down.
If
the greenhouse is to be positioned in a highly exposed area, it is
recommended that the footings be pinned down using rebar (approx. 1ft
from the corners). The holes need to be drilled at an angle of about 45
degrees toward the center of the timber with the rebar driven down flush
with the top of the timber.
The
inside floor of the greenhouse should be covered with pea gravel or
crushed limestone. This stone will act as a storage heater, soaking up
the heat of the sun during the day. This will reduce heating costs
during the winter months.
Concrete
If
the greenhouse is to be located on a concrete footing or slab, mount a
2’ x 4’ wood plate to the surface of the concrete base. When using a
concrete foundation, it is important to consider drainage.