Hoklartherm KS1000 Assembly Instructions

ALUMINUM
Onion shaped
greenhouse

- Riga -

Technical Information Subject to Change

Assembly Instructions

RIGA Series II, III, IV

November 2004

Made in Germany

Riga Type 3

1

Dear garden friend,

Congratulations on the purchase of a RIGA greenhouse from Hoklartherm, Germany.

You will find the assembly of the RIGA greenhouse to be quick and easy if you carefully
follow these Assembly Instructions.
The assembly requires only two people, but it will go quicker if you have access to a 3rd
person who can help from time to time - this person does not need to be especially strong
or handy.

Contents:

Hoklartherm inspectors have carefully checked the contents of each package. Nonetheless,
we ask you to do the same: Check the contents of each package against the table of
contents in this Manual. Call us toll-free if believe you are missing any parts: 1-877-760-

8500.
Note: Before you call us, make sure you have received all the packages. Check the Freight
Bill provided by the delivery company’s driver and/or the Packing Slip attached to the
outside of one of your packages.

Choose the best location:

Please choose, if possible, a sunny and protected location for your greenhouse. Avoid a
heavily shaded near buildings and/or trees. However, also be careful to avoid bright, direct
sunlight (especially in the Southwestern part of the United States). High-intensity sunshine
is not good for more than a few hours a day. In such areas some protection from trees and/
or buildings is recommended. Shade cloth might also be needed (ask your supplier for
details). For greenhouses intended for growing vegetables such as tomatoes, cucumbers
and melons we recommend the greenhouse be located in a north-south direction, and for
those to be used for flowers and pot plants orient it in an east-west direction.

CAUTION:
Do not attempt to assemble the RIGA greenhouse while a wind is blowing

- your Glazing Panels might blow away.

Do not expose the Glazing Panels, with their special protective film, to bright sunlight or
the film will become permanently glued to the Panels before the film is removed during
installation.

Manufacturer’s Limit to the RIGA warranty - Glazing: 10 years. Frame:
15 years.

The RIGA has been specially designed to withstand heavy winds, snowstorms and other
bad weather, however proper assembly is essential. Make sure you assemble the RIGA
greenhouse exactly according to this manual. In case of any difficulties please call us:
1-877-760-8500. Hoklartherm will not warrant this greenhouse if it is not properly assembled,
neither is the company responsible for damage done by very severe weather, such as
tornedos, hurricanes, lightning, and/or ‘force majeure’ (other acts of God).

2

Getting Started:

1) The assembly has to be executed by at least two people - a 3rd person to
help out from time-to-time is recommended!

2) Work cautiously, with the proper tools. Make sure that the stepladder’s footing
is secure!

3) We recommend that you work with gloves (although all of the edges have
been filed, it is always possible for you to be cut when handling either the
aluminum or polycarbonate parts).

4) You need the following tools for the assembly:

1 pc Phillips-head Screwdriver for recessed-head screws, size #2
1 pc Open-jaw wrench, 10 mm (0.4”)
1 pc Screwdriver for slotted screws
1 pc Water level
1 pc Step Ladder, approx. 6-feet high
1 pc File to remove possible sharp edges
1 pc Rubber Mallet
1 pc Measuring Tape
1 pc Electric or Cordless Drill
1 pc Bungee Cord
1 pc Caulking Gun

INDEX

Part List: Pages 4 & 5
Main Frame Assembly: Pages 6 - 11
Foundation Fram Assembly: Page 10
Roof Window Assembly: Page 12
Rear Window Assembly: Page 13
Front Door Assemble: Pages 14 & 15
Mounting Accessories: Pages 16 & 17
Inserting Rubber Seals: Page 17
Assembling Optional Shelves: Pages 18 & 19
Care & Maintenance: Page 20
Costume Service: Page 20

3

2.2

1.3

E

1.7

1.4

1.6

Basic Frame - Aluminum Parts
and quantity:

1.5

C

D

1.1

A

B

2.1

1.9

1.8

2.0

1.2

1.1 Front & Back Floor Profile

2x

1.2 Side-Floor Profile 2x

1.3 Roof Beam Profile

1x

1.4 Front & Back Crossbars 4x

1.5

1.6

1.7 Door Frame: Top Crossbar

1.8

1.9 Rear Wall Middle Crossbar

Door Support - right side
with 8 holes

Door Support - left side
no holes

Roof Window - Crossbar
(RIGA IV & IVs: 2x)

2x

2x

2x

1x

1x

2.0 Lateral Supports 4x

2.1

2.2

Curved Corner Profiles with 1
channel

Curved Center Profiles with 2
channels II 2x ; III 4x ; IV 6x

4x

<<<

Note: Windows and Door frame parts are
taped together into their own individual
bundles.

Detail A = Floor Profile (page 7)

Detail B = Front Crossbar Connection (page 8)

Detail C = Window/Door Hinge (page 16)

Detail D = Window/Door Frame connection (page6)

Detail E = Roof Beam Connection (page 7)

4

Bag(s) with Accessories for Riga 2S/2, 3S/3 and Riga 4S/4

Please check - according to table - if complete.

designation size no. of pieces

clamping plate
hexagon bolt
nut
hexagon bolt
angle bracket
L-connection
connecting angle
angle
automatic window opener*
manuel window opener*
knurled nut
angle
covering plate for roof beam
pan-head tapping screw
pan-head tapping screw
blind plug
door „open“ holder
pan-head tapping screw
hinges*
Silicon
flat-heat screw
flat-heat screw
t-seal
PVC-adapter
flat-heat screw
self-locking nut
flat-head screw
sash lock, small
seal - frame of door*
GHD-seal 1*
wedge seal*
wedge seal*
fittings of the door handle*
* parts in separate bags!

M6 x 16
M6
M6 x 30
30 x 10 x 4
60 x 27,2 x7,4
40 x 40 x 4
50 x 50 x 5,95

Ø35 x M6
40 x 30 x 30

4,2 x 13
4,8 x 45
Ø10

3,5 x 16

4,8 x 25
4,8 x 50

M6 x 20
M6
3,5 x 38

2mm

3-5 mm
6-8 mm

Riga 2S/2

8
50
50

1

8

8

4

6

1

1

1

1

2

4
12

8

1
16

6

1
24

4

21 feet

1

1

1

6

3

24 feet
24 feet
15 feet
29 feet

1

no. of pieces

Riga 3S/3

8 10
60 60
60 60

1 1

8 12

8 12

4 4

6

1

1

1

1

2 2

4 4
12 12

8 8

1 1
16 16

6

1
24

4

21 feet

1 1

1 1

1 1

6 6

3 3

24 feet 24 feet
24 feet 24 feet
15 feet
36 feet

1

no. of pieces

Riga 4S/4

6
2
1
1
1

6
1

24

4

27 feet

15 feet
45 feet

1

5

Suggestion

Before you begin - read all these instructions to become familiar with each step of the
assembly process. You might decide that you find it easier to complete the assembly process
in a different sequence. Several sequences are possible. For example, some people may
prefer to build all of the greenhouse frame first and then insert the Glazing Panels, while
others may prefer to interchange these steps. Some may prefer to add the Optional
Foundation/Base Frame at the very beginning (special L-brackets have been provided for you
if you wish to do so) - see page 8 for Foundation Frame installation options. We recommend
the following Assembly Steps:

III. 1:

view from the front

Left Side Door
Frame
no holes

lateral holes to attach
crossbars

Right Side Door
Frame
with 8 holes

Step 1: Door Frame Assembly

Connect the Front-Floor Profile with the Upright Profiles of
the door frame.
Carefully slide/push the door profiles # 1.5 and #1.6
along the channel in the front-floor profile
(See picture on the right).
Put the profile with 8 holes
(which will be used for the hinges)
on the right side. You can use the rubber
mallet to tap the Upright Profiles in order
to slide them along. Distance between
both upright profiles should be about 29.5 inches.

outside

front-floor profile 1.1

III. 2:

M6 x 16

crossbeam 1.9
at back wall

gable-floor profile

holes for
sheet metal screw 3,5x13

Detail D

III. 3 +III.4:

crossbeam 1.7

The upright door profiles will be attached to the Front Floor
Profile (through their holes) using sheet metal screws 3.5 x 13,
once the front glazing panels have been installed.
Important: Slide 1 hexagon bolt (M6 x 16) down each door
profile channel (See Illustration #2 on left). These are for the

assembly of the Door Frame Cross bars (at the top).

Step 2: Rear Window Frame Assembly:

Repeat everything in Step 1: However this time slide 2
hexagon bolts (M6 x 16) down the channel of each Door
Profile.
These will be used later to attach the Top Crossbar as well
as the Middle Crossbar (which will be under the window).

Step 3: Attach Front Curved Corner Profiles:

Slide both Corner Curved Profiles (#2.1 - with one channel
each) onto the corners of the Front Floor Profile (#1.1) The
ends of each Curved Corner Profile are slightly different on the
top from the bottom. (See small circular picture on left). Note:
Be sure to check that each bottom end is marked with an X.

Step 4: Mounting of the
Cross Bars in the Door
Frames:

Push 2 hexagon bolts (M 6x16)
into each crossbar #1.7 and
#1.9 as shown in Illustration 2
and connect these to the
hexagon bolts in the upright door
profiles with round mounting
plates (with 4 holes)

*too many screws M6x16 are possibly screwed in, it
doesn’ t matter, they can be used elsewhere!

screws M6 x 16

here

6

Detail A

Step 6: Connection of the front section to the Side Floor
Profiles:

Now attach both Side-Floor Profiles (#1.2) to the front section by
inserting the aluminum-corner connectors with recessed screws
while at the same time sliding the Curved Corner Profiles (#2.1)
into the Side-Floor Profiles. Tighten the recessed screws. (See
picture on left).

Now you will need a third person or devices that can help
you hold the profiles in the air.

curved corner
profiles

Detail E

Fixing – on the front
with sheet metal screws
4,2x13

appr.1m

curved center
profiles

Step 7: Mounting of Curved Center Profiles with 2 Channels:
Now slide a Curved Center Profile with 2 Channels (#2.2) from the
rear to the front into Side-Floor Profiles (#1.2) Be sure the end
marked with the X is on the bottom. Slide to about 45“ from the
front Corner Profiles.

Step 8: Mounting of the Roof Beam Profile #1.3:

Lift the Roof Beam (#1.3) and, coming from the back, thread the 2
Curved Center Profiles into the channel of the Roof Beam.
Continue moving the roof beam forward until reaching the front
Curved Corner Profiles and thread them onto the end of the Roof
Beam.Cover the end using the Roof Beam Cover plate and fasten
with sheet metal screws 4,2x13. (See picture on left). Note: Use

3 people for this step: Two to hold up the Curved Profiles and
one to slide the roof beam while standing on a stepladder.

Step 9: Adding additional Curved Center Profiles #2.2:
Now add more Curved Center Profiles as necessary (Series II
uses only 1 on each side; III uses 2 on each side and IV uses 3
on each side). Slide each along the Side-Floor Profile as well
as the Roof Beam at the same time. Be careful to move the
profile only inches at a time on each end. Preferably one
person pushes at the bottom while the other pushes at the top.
Use Rubber Mallet! Distance between each set is about 45“.

Important information regarding the Mounting of Polycarbonate Glazing Panels:

Warning: Always put the side with the blue protective film towards the outside.

All glazing panels come coated with a special layer of high quality UV inhibiting film,
however this treatment is only applied on one side. In order to identify the UV-coated side a
removable layer of blue protective film has been applied. This film must be removed before
placing the Glazing Panels into any of the channels of the aluminum profiles. Remove
protective film from both sides only one panel at a time as you install each panel.

Suggestion: Mark either the inside or the outside of each panel with a dot from a permanent

marker. That way if you later move the greenhouse you will always know which side of the
panels is coated. The Glazing Panels are not marked. Choose the right one like solving a
puzzle! Have a little fun.

Warning: Do not leave Glazing Panels with the protective film in bright sunlight as the film

will be permanently glued to the Panels.

7

Guiding groove of the window

Detail B

This crossbeam is to screw
together with screws 4,8x45
laterally through the frame of
doors or gable edge profile
respectively. After the glazing.

Step 10: Mounting of Roof Glazing Panels:
At this time select one of the largest sheets of the Glazing
Panels and remove the protective film, and insert it into the
channel of a Curved Corner Profile (start either on the right or
left side of the greenhouse). The first time this is quite tricky ­you have to learn how to bend the big sheet correctly. Using 3
people is highly recommended. Use one person standing on
the outside, and one person at the top end (on a stepladder),
and a third in the middle on the inside. Start at the bottom by
inserting the Glazing Panel into the grove/channel in the
Curved Corner Profile, the person standing on the outside
then puts his/her shoe against the other side of the Glazing
Panel to push and hold the glazing in to the grove. Next, using
one hand they guide the rest of the Panel into the grove, while
using their other hand to pull/push the other side of the Glazing
Panel in to the grove, at the same time the person on the
inside provides counter pressure. The person near the top
helps to insert the top half of the Panel. Once completed, one
person holds the Panel in place while the other two slide the
next Curved Center Profile on to the other side of the Glazing
Panel. You can hold this Curved Profile temporaritly inplace
with a bungee-cord.
Now do the same thing on the other side of the greenhouse.
Once completed you have installed one section of Glazing
Panel on each side

Step 11: Placing the Roof Window(s):

(In order to continue, placing the Roof Glazing Panels, you
must decide on which side you want your Roof Window(s).
This might depend on the prevailing wind. It is best not to put
Roof Windows facing a prevailing wind, but put them on the
otherside of the greenhouse. However, without a prevailing
heavy wind from one direction put 1 Roof Window on each
side, in different sections, if installing more than 1 Window
(i.e. RIGA IV).)
Next: place the shorter roof Glazing Panel, in the second
section (from the front), of your RIGA greenhouse, either on the
left or right and side. Slide the next Curved Center Profile on
to the other side of the panel and: (go to step 12).

Step 12: Placing Roof Window Crossbar:

Once you have placed a shorter roof Glazing Panel, add the
Roof Window Crossbar #1.8, on top of the Panel. But, first you
must slide 4 Hexagon Bolts (M6 x16) in to the center channel
of the crossbar. (two of the bolt will be used to attach the
Automatic Window Opener). Bring from the bottom of the two
Curved Center Profiles one of the 3 Hexagon Bolts you placed
in the channel earlier and using a Mounting Plate (round disk
with 4 holes) attach the Crossbar on each side to the Curved
Center Profiles. Making sure the Crossbar is fully pushed
down over the Glazing Panel.

8

Step 13: Place rest of Roof Glazing Panels:

Now place the rest of the large Glazing Panels (remember that if you are installing a second
Roof Window) you must place this in one of the other sections as you prefer). When you have
completed the last section attach the back wall.

Step 14: Connection of the Back section to the Side Floor Profiles & to the Roof Beam:

(also refer to step 5)

Now attach both Side Floor Profiles (#1.2) to the back section by means of inserting the aluminum­corner connectors with recessed screws while at the same time sliding the Curved Corner Profiles
(#2.1) in to the Side-Floor Profiles, tighten the recessed screws. (see picture on previous page). Next

tread the top ends of each of the Curved Corner Profiles onto the Roof Beam and attach the
Roof Beam Cover Plate with screws (4.2 x 13mm).

Step 15: Glazing of Front Wall:

First insert the bottom two Gazing Panels (all most square), one on either side of the door frame
(suggestion: remove the top Crossbar of the Door Frame - to allow you more manouvering space ­you can slide the Door Frame Uprights towards the center). If you have bought the RIGA shelving, you
must slide one M6 x 16 Hexagon Bolt in to each of the Front Crossbars. Than set the Front Crossbars
(#1.4) on top of the bottom Glazing Panels. Then place on top of each Crossbar a Glazing Panel with
the curved edges, making sure the side with the UV-filter in facing outwards (as always). Now
permanently attach the Crossbars to the outersupports (Curved Corner Profiles and Door Frame),
using screws: 4.8 x 45mm (0.2“ x 1.75“). See picture on the left.
Next, insert the small triangular Glazing Panel above the Door Frame (you will have to remove the Top
Crossbar - if you haven‘t already done so). Before, you put the top crossbar back and bolt it in place,
make sure the triangular Panel is inserted such that the bottom edge is perfectly horizontal (if you like,
use a level) and that the top corners at each of the ends of the Crossbar touch the Curved Corner
Profiles.

Step 16: Glazing of the Back Walls:
Follow step 15 to insert the Glazing Panels on each side of the vertical uprights. Than place the
center Galzing Panel in the bottom of the „door“ opening and cap with the Back Wall Crossbar
(#1.9). Make sure you insert 3 Hexagon Bolt (M6 x 16mm) in the channel of the Crossbar. Using
the Round Mounting Plates with 4 holes attach each side of the Crossbar to the „door“ frame ­using the bottom Hexagon Bolts in the door frame. The 3rd Hexagon Bolt in the Crossbar will be
used to attach the Rear Window Opener to.
Next, insert the triangular Panel above the „door“ frame. Same process as in Step 15.

9

Insert 3 Hexagon Bolts M
6x16

Step 17: Assembly of Lateral Supports #2.0:
If you bought the optional shelving (shelving without
legs - specially designed for the RIGA greenhouses) ­refer to page 13 for further instuctions.

If not: Lay 2 of the Lateral Supports (#2.0) on top of the Front
and Back Crossbars one on each side against the Curved
Profiles, attach to the Curved Profiles using the lowest
Hexagon Bolts you put in the Curved Profile channels, tighten
with nuts. Attach in such a manner that the L-shape goes
upwards. If you were to install their shelving later the shelf
trays will lie inside the L.
Install the second set of Lateral Supports (#2.0) about halfway
between the bottom Lateral Supports and the Roof Beam ­stay underneath the Roof Window as shown in the drawing on
page 3.

Roof Window Assembly: see Page 12
Rear Window Assembly: see Page 13
Front Door Assembly: see page 14

Angle Brackets
on the Foundation Frame

Stones to lay
horizontally

ca 6 - 10 cm

Mounting of a Foundation Frame:

If you have purchased the RIGA Foundation Frame (extra high 6“),
you have 2 choices about when to attach it:
(But in either case you must slide 3 Hexagon Bolts (M 6X16) into
the central channel of each Foundation Frame piece: Place one
bolt near the center and one at each end.)
Choice #1: At the beginning: Mount the Foundation Frame by
hooking it into the floor profiles #1.1 and #1.2 before you start to
assemble the RIGA greenhouse. (Many prefer this method).
Special L-brackets have been provided for you to do it this way.
You slide a Hexagon Bolt into the center channel, towards the
middle of each of the 4 Foundation Frame sections and use a L­Bracket to hook over the Floor Profile and then over the bolts in
the Foundation Frame - hold in place with a nut. You can remove
these brackets if you wish when you have fully assembled the
greenhouse.
Choice #2. When the greenhouse frame has been completed:
You attach/hook the Foundation Frame (see picture on the left) in
single parts to the 4 Floor Profiles (remember to add 3 Hexagon
Bolts to each piece first). You will have to lift each side of the
greenhouse approx. 10-12“ above the ground. Suggestion: Place
some blocks underneath the frame to hold it up or you can lay it
on its side (yes, if you have properly assembled your greenhouse
you can lay it on its side - and this is a good test to find out!)
Either method, once the 4 Foundation Frame pieces have been
put into place you attach the 4 Corner Brackets (see picture on
the left).

10

Helpful Hint: Depending on where you might have laid down the Floor Profiles you might find that dirt/
sand has already entered the little channel on the bottom side of the Floor Profiles into which the
Foundation Frame pieces are to be hooked. Two solutions: Either use a brush with very fine bristles
and try to wipe out the dirt, and/or carefully slide the Foundation Frame, starting from one end all the
way down the channel of the Floor Profiles, to push the dirt out. Use a Rubber Mallet - carefully - to do
this.
Another suggestion: Assemble the greenhouse on a hard surface, like a driveway, and carry the
greenhouse to its final location once it is fully assembled. That way you avoid dirt entering any of the
profiles.

Step 18: Placing the Greenhouse in its permanent location:

There are 2 basic options:

1. In the ground:

Dig a trench approx. 6-10“ deep, and depending on the slope in your garden and how much you care
that your greenhouse appear horizontal, place in each of the four corners and half way down the
length, somekind of a brick (or something similar) as a support (see picture on left). You will want to fill
the trench, up to the top of your bricks, with some kind of small riverbed stones (peddle stones) to
provide a solid and even footing all the way round. If you have not yet attached the Foundation Frame
to the greenhouse you can use the frame pieces to make sure that all four sides of the trench are
level. Once the trench is level start the assembly of the greenhouse or if you have already assembled
your greenhouse you will need 4 people to set it in the trench.
Once in place - fill the Foundation Frame with the excavated materials and thus the greenhouse is
protected from it flying away in strong winds.

2. On a hard surface:

The RIGA can be placed with or without the Optional Foundation Frame. In Europe it is common for
people to buy the Foundation Frame - even though they are mounting the greenhouse on top of a deck,
concrete slab, or a specially build low wall - just to add 6“ more of head room.
Attach either the Foundation Frame or Floor Profiles to your foundation using appropriate screws or
bolts. Recommendation: Place at least 1 screw/bolt every 3 feet; diameter: 0.3“-0.4“.

Notice: There are no pre-drilled holes in either the Floor Profiles or the Foundation Frame for

mounting to a hard surface because depending on what type of hard surface you want
to mount the RIGA to, the required distances of such holes might be different. Although
the Aluminum parts are extremely strong their material is soft enough for you to drill
holes wherever you require them.

11

Parts list for skylight

Pos. designation length number

4.0 PVC-angle bracket 2.7“ x 1.1“ x 0.4“ 4

4.1 Alu-angle connection with recessed screw 1.2“ x 1.2“ x 0.4“ 4

5.0 Skylight (roof window) cross-rail 41“ 2

5.1 Skylight Side Bar 24.8“ 2
Y-seal 11.5 ft.

Ill. 3:

Glazing
channel

milling to have it push into the ridge

Pos. 5.1

Skylight or Roof Window Assembly:

The aluminum profiles of the Skylight are all bound together in one
bundle .
Lay out the profiles as shown in the above picture and insert the big
PVC- corner connectors (#4.0) and the aluminium corner connectors
(#4.1) into the appropriate profile channels (it is a snug fit). Make sure
to insert 2 Hexagon Bolts (M 6x16) into one of the Skylight profiles
(#5.0) (This one will become the bottom of the window) as these will
be later used to attach the Automatic Window Opener.

Attention! In order for the window to be able to close correctly you

must make sure that the 2 ends with a slight cut-out of each of the
vertical/side profiles are facing to the top. (Look carefully at each end
and put the ends with the shorter round channels on the top). See

Bolt channel

picture on top left.

Attention! The appropriate size Glazing Panel has to be inserted into

the profiles while assembling the frame.Use the Allen key to tighten all
the aluminum corner connectors.
Next insert (or pull-in) the rubber Y-seal into the narrow circular
channel located on the outer edge of the two side profiles and the
bottom profile. See picture on left bottom.

Y-seal

Then if you wish (optional, but recommended) seal the outside of the
Skylight with silicon (use enclosed tube).

Pos. 4.0

12

-top-

Pos. 5.0

Pos. 4.0

Pos. 4.1

Pos.5.1

Pos. 4.1

2 Hexagon Bolts
M6 x 16

Pos. 5.0

Mounting of the skylight (roof window):

Slide the narrow circular channel sticking out of the top Skylight Profile (#5.0) of the fully
assembled roof window (see Ill. 3, page 8) into the wider circular channel on top of the Roof
Beam. With the rubber mallet move the window in position so that when it closes it fits between
two Curved Center Profiles (#2.2).

Parts list for Rear Wall Window

Pos. designation length number

4.0 PVC-corner connector 2.4“ x 2.4“ x 1.1“ 4

4.1 Aluminum-corner connector 1.2“ x 1.2“ x 0.4“ 4

4.2 Vertical Window Support (without holes) 50.7“

4.3 Horizontal Window Frame Supports 30.1“ 2

4.4 Vertical Window Support with holes (for hinges) 50.7“ 1
Y-seal 15 feet

Part of the Total Parts List

Pos. 4.3

Rear Wall Window Assembly:

The Rear Wall Window is assembled
the same way as the Roof Window or
Skylight. See Previous page and
drawings on this page.
One exception: the Y-seal goes into all 4
profiles.

Pos. 4.2

Pos. 4.1

Pos. 4.0

Pos. 4.3
Insert 2 Hexagon Bolts
M 6x16

Pos. 4.4

Attention!

Insert 2 Hexagon Bolts (M 6 x16) into the
bottom profile of the Rear Wall Window ­in order to be able to attach the Rear
Wall Window Opener (adjustable arm)
later.

Glazing channel

Bolt channel

Y-seal

13

Pos.

1.0 Aluminum Corner Connectors with a hole on side 2“ x 2“ x 0.4“ 6

1.1.0 Connecting screw 3,5 x 32 (0.1“ x 1.3“) 6

1.1.1 Connecting screw 4,8 x 50 (0.2“ x 2.0“) 4

2.1 Upper door cross-rail 30.5“ 1

2.2 Upper Section Right Vertical Door Support with holes for hinges 46.3“ 1

2.3 Left Vertical Door Support with 2 holes at bottom 46.3“ 1

2.4 Door Crossbeam with large hole for door handle 28“ 1

3.1 Vertical Support with sash lock holes 29“ 1

3.2 Top Crossbar with VKT-holes 30.6“ 1

3.2.1 Lower Section Rectangular tube VKT 30/30 as door stop 28“ 1

3.2.2 Seal 2mm 23 feet 1

3.2.3 Distance blocks 4 mm (yellow) 3“ 2

3.2.4 Connecting screw for top part of lower door 3,5 x 32(0.1“ x 1.25“) 2

3.3 Right Vertical Support with hinge holes 29“ 1

Parts list for divided revolving door

3.4 Bottom Crossbar 30.6“ 1

Ill. 1:

profile

Upper Door Section: See Ill. #1

designation

length number

Part of the total parts list

Lay out the profiles according to the drawing on the left.
Insert the Aluminum Connectors (#1.0) into the Vertical

1.1.0

3.5x32

Supports (#2.2 and 2.3) so that the holes in the Connectors
line up with the holes in the Vertical Supports. After they are
lined up the profiles are screwed together with the screws
going through the screw channels in the Top Crossbar (#2.1).
Use the sheet metal screw 3.5 x 32 (0.15“ x 1.25“). See
Picture.

4.8x23
Next, place the large Lower Crossbeam (~4“ wide) with

doorhandle hole (#2.4) and screw it together with the sheet
metal screws 4.8 x 50 (0.2“ x 2“). Two screws each go on
both sides - as shown.

Ill. 2:

Ill. 3:

3.2.2

3.2

Sash lock

3.2.1

3.2.3

3.2.4

Lower Door Section: See Ill. #2 & #3
Assemble the bottom half of the door the same way as the
top half. Then press the strip of sealer material into the
intended sealing grooves. Always cut the seals a bit longer
and then press them so there is slightly too much rubber seal
on each end. Over time temperature fluctuations will slowly
shorten this excess rubber seal. See Ill. #3
Lie the rectangular tube 1.25“ x 1.25“ x 28“ on top of the Top
Crossbar and insert the yellow spacers (#3.2.3) between the
Top Crossbar and the Rectangular Tube (#3.2.1) (See Ill. 3).
Next, attach the Rectangular Tube to the Top Crossbar using
the long screws (3.5x38), screwing them upwards through
the Top Crossbar (#3.2), as shown in Ill. #2.
Next, place the two black caps
(1.25“ x 1.25“) on each end of
the Rectangular Tube.

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Ill. 1:

Door glazing

door rung

Seal 2 mm

Both Doors: Sealer & Glazing:
Then press the narrow seal into the
channel on the outside of the profiles
with the lip pointing to the inside. See
illustration at bottom of last page and

GHD-seal

above. Next: Insert the Glazing Panels
into both door sections on the inside and
push in place the GHD-seal as shown on
the left (Ill. 1 on this page).

Ill. 2:

Door Handle Assembly Instructions

Instructions for the assembly for lockable door handle

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Mounting of the Accessories

Mounting of the door and window hinges: (see
illustration on the right).The bottom parts of the hinges are
to be attached to the right outer door and rear window
frames using the screws 4.8 x 25 (0.2“ x 1“ long) - into the
appropriate holes. The upper parts of the hinges are to
be attached to the inner door frames (existing holes) and
the frame of the back wall window with screws 4.8 x 19
(0.2“ x 0.75“ long). Hang the doors and window and insert
the spacers between the two parts of the hinges and then
insert the Hinge Pin from the top
and secure with Snap-Rings at
the bottom. If necessary, loosen
and adjust the hinges to get the
right fit.

fixed open position by placing any eye in the handle bar over the pin sticking up from the
Crossbar below the window, and holding it in place with the large White Knob.

Hinge pin

Bottom part of the hinge

Upper part of the hinge

Mounting of the manual window
opener

Attach the PVC-adapter – with the thick
eye on the bottom – to the Hexagon
Bolts (M 6x20) already placed in the

Sash lock

bottom profile of the Rear Wall Window.
Then attach Manual Window Handle
(about 12“ long) to the adapter (if it did
not already come assembled). Attach
the metal bracket with the treaded pin
sticking up to the Rear Wall Crossbar
(under the window) to the Hexagon Bolt
placed there earlier. By trial and error
determine the optimal position you
desire for both ends of the Manual
Window Opener. Hold the window in a

Detail C

Placing of the sash locks / toggle switches – black PVC –

Attach a sash lock on the inside of the back window into the right hand vertical support (seen
from the inside) to the pre-drilled holes
using the 3.5 x 16 (0.14“ x 0.6“) screws . Do the same with the other 2 Sask Locks on the front
door as shown on the next page.

Attaching the Automatic Window Opener:
First follow the assembly instructions that come with the
Automatic Window Opener. Then attach the Automatic
Window Opener to the 2 Hexagon Bolts, earlier placed in both
the bottom crossbar of the Roof Window and the Crossbar of
the frame – as you can see in the illustration – with the short
arm going to the roof window and with the long arm going to the
Crossbar underneath.

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Door Holder:
The Door Holder - white and made out of two pieces (male and female) - is used to keep the
door open in a fixed position. Place the Holder at the top right-hand corner of the door. See
picture above. The female part has to be attached to the Curved Corner Profile and the male
part to the top profile of the Upper Door - use screws 3.5x19.Hold the parts is place, mark the
screw locations with a pen, and then drill your own holes.

Inserting the Rubber Seals

1) On the inside:

Wedge seal to extend centrically

Wedge the narrower seal (3-5 mm) (as shown, pull apart if
necessary) between the Front & Back Wall Glazing Panels and the
Floor Profiles (see illustration on left). This should require little or no
strength - just push it in place with 2 or 3 fingers.

2) On the inside:

Wedge the broader/larger seal (6-8 mm) between the Roof Glazing
Panels both at the top (into the Roof Beam) and at the bottom (into
the Side Floor Profiles) (see illustration). This should require little or
no strength - just push it in place with 2 or 3 fingers.

Doorsill:
Fianlly, place the Doorsill on top of the Floor Profile, underneath the
door, and attach with 2 tallow-drop screws 3.5x16.
See illustration on the left.

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ill.2

ill.1

ill. 4

ill. 3

ill. 5

Placing the Lateral Supports:
If you have not already done so: Attach 2 Lateral Support #2.0 (full length of greenhouses) on
both sides using the Hexagon Bolts. Place in each of the Curved Profiles. One lays on top of the
Front and Back Wall Crossbars (#1.4) the other goes at head height - but below the Roof
Window.
If you have bought the specially designed optional RIGA shelving system the upper support can
be placed whereever you wish to place the upper shelf.

Assembling Top Shelving (Optional Accessory)

Step 1: Place Eye-Ring Hook combination in each Curved Profile (near the top) on
the side of the greenhouse where you want to place the shelving. (See Illustration 1­inset in picture above)

Step 2: For the top shelf: Slide as many Hexagon Bolts into the channel at the bottom of the
Lateral Supports (against the wall of the greenhouse) as you have Curved Profiles (i.e. RIGA III
has 4 Curved Profiles on each side). Attach to each bolt the longer flat end (1.25“) of the Cross
Struts (about 16“ long) and secure with nuts.

Next: Bend the cross-struts to a horizontal position (Ill. 2)

Then: Slide into the bottom and side channels of another Lateral Support (similar to the one
already fixed into the wall of the greenhouse) as many bolts as you have cross-struts - in the
same locations as the one with the Cross-struts. Now attach the Cross-struts to the bolts on the
bottom of the second Lateral Support. Next hang the necessary chains from each of the Eye­Hooks that you earlier put in the Curved Profiles. Raise the top shelf and put the bolts through the
rings on each of the chains and secure with white knobs. Make sure the shelf hangs horizontal.
You can also adjust the position of the Eye-Hooks to make each chain hang perfectly vertical.
See picture above for details. Last: Insert the removable polycarbonate shelves.

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Mounting of Lower Shelf (table without legs) (optional accessory)

Step 1:

(If top shelf already exists, start with step 2)
Place an Eye-Hook (Ill.1) in all the Center Curved Profiles.

Step 2:

Slide as many Hexagon Bolts into the bottom channel of the Lateral Support (which is placed
against the greenhouse side wall) as you have Cross-struts. You should have received an extra
cross-strut for each glazing section; place half way between Curved Profiles. Insert the same
amount of bolts on the bottom channel of the other Lateral Support. In addition slide as many
Hexagon Bolts, as you have chains hanging down, into the channel on the front side of the
second Lateral Support (chains will be attached to these).
Next: Attach an angle bracket to each end of the second Lateral Support and attach to Hexagon
Bolt sticking out of the Front & Back Wall Crossbars. See Ill. 5

Step 3:

Attach all Cross-struts to both Lateral Supports using the Hexagon Bolts and nuts M 6x16. (Ill. 2
and 3).

Step 4:

Now attach the chains to the front of the second (front) Lateral Support.
Last: Place appropriate shelves (either polycarbonate glazing or seed trays) in each of your shelf
frames. Sections of either are removable in order to provide adequate growing space for tall
plants.

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Care and maintenance of your RIGA greenhouse

The greenhouse only requires minimal care and/or maintenance:

1) To clean: We recommend a treatment similar to those for
washing your car: Rub with a soft brush and lots of water (very mild
soap). Never use abrasive materials as you do not want to scratch
the UV filter on top of the Glazing Panels.

2) The pressure cylinder of the Automatic Window Opener
should be removed during frost season and be kept frost-free.
The rod assembly of the Opener can stay in the greenhouse. Tie
the rod assembly arms together with string or wire while the
cylinder is not in place to prevent the window from blowing open in
stormy weather.

3) Your RIGA greenhouse should be ventilated as much as
possible especially when condensation develops. (However, high
humidity is preferred by some plants and especially during the
seed-to-seedling stage).

Have lots of fun and success with your RIGA greenhouse from
Hoklartherm - enjoy the fruits of your labor!

Please contact your supplier for information about Special
Accessories for your RIGA greenhouse.
If you wish to see what other products Hoklartherm manufactures
visit its website: www.hoklartherm.de
In case of problems during the assembly process or questions
regarding the RIGA warranty, contact the U.S. importer:

Exaco Trading Co.
Customer Service
8140 Burnet Rd., Suite 227
Austin, TX 78757
[e-mail]
(Toll Free: 877-760-8500)
(Fax: [phone]) Made in Germany

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