Exaco HOKLARTHERM Riga XL 5 User manual

ALUMINIUM
Greenhouse
Riga XL Factory Manual
Assembly
Instructions
Version 2.2021
www.exaco.com
877-760-8500
[email protected]
Assembly Animation Video
is available on our YouTube page,
find the link at www.exaco.com or
scan the QR code above.
Riga XL 5, 6, 7, 8, 9

2
Dear Gardening Friend,
Thank you for buying a Riga XL greenhouse from Exaco! Please read these
Assembly Instructions and helpful suggestions carefully. Our animated YouTube
assembly video will be extremely helpful during assembly - find a link to our
YourTube page on our website at www.exaco.com. If you have questions or run
into any difficulty, please give us a call! Good Luck!
What to do First:
Check all the boxes you have received for damage and make sure you have the
correct quantity. The driver will have a delivery receipt called a Bill of lading, this
will have the quantity of boxes you should be receiveing.
If you are missing a box or if any of the boxes are damaged - write this on the Bill
of Lading before the driver leaves. Notify Exaco as soon as possible if any of
the boxes are damaged or missing.
Note:
Please do not refuse any of the boxes or the whole shipment, because of any
damage. We will gladly replace any damaged items. Sending replacement parts
is a simple and easy process.
In the case of damage:
Contact Exaco Customer Service at 877-760-8500 or email us at
[email protected]. Photos will help us see if there are
packaging deficiencies and change them in the future. This will also help
identify parts.
Storage:
Please keep all the boxes in a dry place and protected against sunlight (see
note below). If stored outdoors, protect securely with tarps.
Placing your greenhouse:
Place your greenhouse in a location with as much sun as possible. We do not
recommend putting it directly under trees since branches might damage the
glazing. If you intend to primarily grow vegetables: north-south orientation
is recommended if possible; for flowers: east-west.
Protection from heavy winds:
If your area is subject to very strong wind gusts we strongly recommend against
putting your greenhouse up without some kind of protection: a row of small
trees, large shrubs or a wooden fence. Please contact Exaco Trading customer
service to discuss additional anchoring options and window bracing kits for high
wind.
Warning:
Do not attempt assembly of this greenhouse in windy conditions. Your
glazing panels might blow away and become damaged. Damages during
assembly process, due to bad weather, are not covered by our warrantly.

3
Assembly:
Some of the assembly can be by one person, but it is most helpful to have a second pair of hands
available. Assembling the windows, doors and gables ahead of time will make you familiar with
the process and will make the main assembly go quicker and more smoothly.
Once the roof beam is attached to your gable, it is neccesary to have an additional person to hold/
steady the roof beam or use stable support such as: stay bars, ladders, straps or other
equipment. A third person is extremely helpful when installing the curved side walls.
Important note regarding polycarbonate glazing during assembly:
The ISO-celluar sheets (polycarbonate glazing) must be placed with the UV-coated side to the
outside. On the protective film, there will be a corresponding note indicating "UV" or "2UV",
most panels should be coated on both sides, but if you are unsure, please give us a call.
Loosen the protection film only at the edge and the complete rest of the foil only after the panel
is securely in place. HOWEVER, do not leave the film on more than 1 day in the sun as the film
can burn tight to the polycarbonate and will be extremely difficult to remove.
Do not strip it completely off when unpacking the goods because then you cannot see the side
with the UV-protection. The film will also protect the polycarbonate from scratches during
assembly.
Unlike most greenhouses, the mounting of the aluminium profiles is done together with the
glazing. This results in an absolutely secure glazing and the best possible stability of the
greenhouse.
Special Note: Much of the greenhouse is assembled with series of bolts that
are inserted into the channels on the aluminum profiles/extrusions. If you
miss inserted a bolt where needed, there are insertion points in many of the
vertical and curved profiles/extrusions. You may also create your own
insertion point with a 1/2" drill bit. This will not compromise the integrity of
the structure
What you will need:
- Patience - do not rush - Make it a fun build
- 2 people (3 will make it easier - especially when inserting the glazing panels)
- Gloves - the ends of the aluminium profiles can be sharp
- Measuring tape - a combination metric/inch tape measure is preferred
- 2 A-frame step ladders (10‘ and 8‘ preferable)
- 2 Rubber mallets
- Adjustable wrench
- 10 mm socket wrench
- 10 mm wrench
- Philips head screwdriver (Drill or impact drill can be used with
caution) - Level
- Lithium Grease - helpful to slide profiles along floor/roof profiles
and windows along roof beam
- Permanent Marker (to mark glazing panels)

When assembling greenhouses of this length, we recommend
contstructing supports from 2x4s to support the ridge profile
while you are working. Here are some examples.
4
Recommended Support Structure
for Riga XL Assembly (7,8,9)

5
Quantity Content table
1x Basic construc-
tions Gables Page 6
1x Basic construc-
tions Long parts (with floor profile - gable) Page 6
1x Roof window/door Page 8und 9
1x Accessories Seals, automatic window opener, etc. Page 7
2x
bundles Curved center
profiles Page 6
4xGlazing Page 28
2xFoundation frame (special accessories) Page 13
Depending on the size greenhouse you have, your box count will vary.
You may have boxes for optional accessories as well such as
shelving, ventilation, heating and other accessories.
You may have additional smaller boxes of roof
windows depending on model size
May vary by size of model
May vary by size of model
Packaging Counts and Contents:

Profile design Pos. Description Quan-
tity
Length
[mm]
1Front/Back floor profiles 2 4145
2 Edge stay bar - curved - right side 2
3 Edge stay bar - curved - left side 2
4Vertical profile - middle - left - with 50° angle at top 2 1929
5Vertical profile - middle - right - with 50° angle at top 2 1929
6Vertical door profile - left - with 30° angle at top 2 2641
7Vertical door profile - right - with 30° angle attop 2 2641
8 Crossbar 10 952
Profile design
Pos.
TypeDescription Quantity/Length [mm]
IV V VI Type IV Type V Type VI
16 17 18 Floor profile - side 2
3914
2
4909
2
5903
19 Curved center profiles 6 8 10
20 21 22 Lateral supports (wind braces) 4
3970
4
4965
4
5960
25 Cross bar - under window 2
952
4
952
4
952
26 27 28 Roof beam 1
4013
1
5008
1
6002
29 30 31 Re-enforcement bar -
roof beam
1
3971
1
4966
1
5960
6
Profiles for both gables:
Contents of main box - basic construction components.
Profiles for side walls:
Note: Some of this inventory section does not include XL 7, 8, 9. Please refer to the XL 7, 8, 9
parts list that you have been sent.

Part design Pos. Description Quantity
100 Plastic corner connector 4
101 Straight connector plate for cross bars above doors 4
102 T-connector slanted for door upright and edge clamp 4
103 T-connector door profiles to cross bars 8
104 T-connector slanted vertical profile middle/cross bar/
edge clamp 4
105 Floor profile connectors
inside lower corner
4
107 Hexagon head screw
M6 x 16 + nuts M6
Bolts for assembly
160*
108 Washers (f. pos. 8)
to be used with the lateral
supports
28
110 Insulation seal 6 - 8 thick used on the inside See table below.
111 Phillips head screws 4,2 x 13 for cross bar/roof beam- end cap/
cover plate 12
142 Phillips head screws 4,2 x 50 for cross bars in front and back walls 4
113Phillips head screws 4,8 x 16 for floor profile corner connectors 16
114Roof beam - end cap/cover plate 2
115 Connector plate for cross bars under windows 4/8/8
depends on model
116Floor profile corner con-
nector covers 4
117Self drilling screws 3,5 x 13 t-connector 102 + 104 32
Length
Type952 mm 571 mm
Riga XL 4
12 pc 4 pc
Riga XL 5
14 pc 4 pc
Riga XL 6
16 pc 4 pc
7
Accessories bag basic construction
*plus substitute screws
Heavy insulation seal 6- 8 mm in pre cut section
Length
Type952 mm 571 mm
Riga XL 718pc 4 pc
Riga XL 820 pc 4 pc
Riga XL 922 pc 4 pc

Part design Pos. Description Quan-
tity
Length
[mm]
* 126 T-seal 1
2
974
1027
127 Plastic corner connector 2x left
2x right
112 Phillips head screws 4,2 x 60 8
107 Hexagon head screws M6 x 16 + nut M6 3
143 Glazing block 30 x 16 x 4 2
Profile design Pos. Description Quan-
tity
Length
[mm]
34 Window profile - roof 2 865
35 Window profile - roof 2 993
Profile design Pos. Description Quan-
tity
Length
[mm]
44 Door profile - left with borings for Sash lock 1 887
45 Door profile - right with hinge borings 1 887
46 Door profile - top 1 864
48 Door profile - bottom 1 864
47 Rectangular tube with cross holes 1 933
Profile design Pos. Description Quan-
tity
Length
[mm]
41 Door profile - left 1 949
42 Door profile - right with hinge borings 1 949
48 Door profile - top 1 864
43 Door profile - bottom with large hole for door handle 1 864
8
Profiles for each roof window
Profiles for each divided revolving door - at the bottom
Profiles for each divided revolving door - top
Accessories and hardware for each roof window
*
Note: The rubber seal is in one bundle for all doors and windows. Cut accordingly please.

Part Design Pos. Description Quan-
tity
Length
[mm]
135 Hinge 2
136 Sash lock 1
137 End cap for rectangular tube 2
*138 T-seal 2
2
936
973
139 Phillips head screw 4,8 x 25 (for hinges) 4
140 Phillips head screw 4,8 x 16 (for hinges) 4
112 Phillips head screw 4,2 x 60 (for doors) 8
141 Phillips head screw 3,5 x 22 (sash lock) 2
142 Phillips head screw 4,2 x 50 (to attach square tube) 2
143 Glazing block 30 x 16 x 4 2
127 Plastic corner connector 2x left
2x right
Part design Pos. Description Quan-
tity
Length
inches
see page 19/20 1
8
150 Door sets, 8-piece (Assembly see page 18.)
112 Phillips head screws 4,2 x 60 (door)
143 Glazing block 30 x 16 x 4
2
* 153 T-seal 2
2
966
973
135 Hinge 2
139 Phillips head screws 4,8 x 25 (hinges) 4
140 Phillips head screws 4,8 x 16 (hinges) 4
136 Sash Lock 1
141 Phillips head screws 3,5 x 22 (Sash Lock) 2
158 Door holder - black - 2 parts 1
159 Phillips head screws 3,5 x 16 (door holder) 4
127 Plastic corner connectors 1x left
1x right
9
Accessories bag for divided revolving door - at the bottom
Accessories bag for divided revolving door - top
*
Note: The rubber seal is bundled in one bundle for all doors and windows. Cut accordingly please.

Connecting Long Profiles
Ridge Profile 1
connector
connector
Ridge Profile1
Ridge Profile2
connectors
Ridge Profile 1 Ridge Profile 2
connector
NOTE: Connectors are now shorter with 4 set screws (not 6)
Ridge Beam shown below. Floor profile and foundation profile (if using) will also be
connected using connectors with 4 set screws.
10

Step 1
Pos. Profile/part design Description Length
[mm] Quantity Dimensions [mm]
Bracing strut 1980
1 (XL7)
2 (XL8)
3 (XL9)
30x4
SM11 Hexagon head screw M6 x 55 2 per
bracing strut
SM30 Nut M6
Assembly of the bracing
Extra Bracing for Riga XL 7/8/9 ONLY
bracing strut
Remember during assembly! Place the pair of curves with the notches
for the braces in the center of greenhouse. Then assemble as directed.
Bracing struts and the corresponding curves should be near the middle.
The XL7 comes with one strut, the XL 8 with 2, and the XL9 with 3.
11
2 per
bracing strut

Step 2
Step 3
Slot for the bracing strut in the
curved center profiles
Assembly of the bracing strut
curved center profile
curved center profile
hexagon head screw
M6 x 55 with nut M6
hexagon head screw
M6 x 55 with nut M6
bracing strut 30 x 4
bracing strut 30 x 4
12
Extra Bracing for Riga XL 7/8/9 ONLY

Profile/part design Pos. Description Quantity/Length in mm
Typ IV Typ V Typ VI
6.1 Foundation frame profile for
gable
2
4085
2
4085
2
4085
6.2 Foundation frame profile for
the sides
2
3864
2
4859
2
5853
Attaching the foundation frame (optional accessory)
Profiles and hardware for foundation frame:
1. First hook the foundation frame into the soil profile, then
rotate it into position.
Note: Make sure the foundation frame pieces are centered
in the soil profile. The foundation frame will be shorter in
length than the soil profiles.
2. Once in position use self tapping screws to secure the
foundation frame to the soil profile. This is shown
above.
3. When the greenhouse has been fully
assembled backfill both sides of the foundation
frame with soil, or your media of choice.
Assembly of foundation frame
1.
Note: Foundation frame profiles are
shorter than the floor profiles!
2. 3.
Self tapping screw
-------
13

Part design Pos. Description Quantity/Length in mm
Typ IV Typ V Typ VI
6.7 Mounting brackets XL 14 16 18
117Hexagon head screw M6 x 12 +
nut M6 56 64 72
Anchoring the greenhouse to your own foundation
Mounting brackets to attach base/floor profile to existing foundation.
Lateral stay bar (pos. 4/5/6/7/19)
Hexagon head screw M6 x 12 + nut M6
(pos. 117)
Mounting bracket XL
To anchor to concrete, we recommend
TapCon screws 2.5 – 3” length, with the
anchor diameter (drill bit should be included).
TapCon screws are not included, but are
available at local hardware stores.
Note:
You will need to insert 2 bolts (M6 x 12) in each
vertical profile (gable ends and curved profiles) to
attach mounting brackets.
Optional: If desired, you may add an extra hole for an
additional bolt to attach the mounting bracket to the soil profile.
If you are using the foundation frame,
please insert a bolt into the
foundation frame channel to attach
bracket with bolt.
14

10
Foundation plan Riga XL
Construction of your greenhouse with a concrete perimeter or strip foundation
If you did not buy a foundation frame, the greenhouse has to be erected safely by means of
a perimeter/strip foundation. Please build this according to the dimensions in the chart
below. You may also attach the greenhouse to a full concrete slab if desired - consider
texture and drainage. The foundation must be even and level.
Fasten the constructed greenhouse with the supplied angle brackets and TapCon (or
similar) screws. We recommend 2.5 to 3" length with anchor diameter of 1/4". TapCon
screws are not included and may be found at your local hardware with correct drill bit
included.
Door Extension Kit: If you are placing your greenhouse on a stem wall,
you will need a door extension kit and your wall must be 20" high. The
XL greenhouses have a front and back door, which is centered on the
gable wall. The rough opening for the door needs to be: 40 7/8” - better
to make it 41” .
When building your stem wall, use the exterior dimensions of the
greenhouse for the exterior dimensions of your wall - this will ensure
your doors will open fully and connect with the door catch. Please be
sure that the thickness of your wall allows for secure anchoring and
meets local building standards.
outer edge of foundation
outer edge of greenhouse
top edge of earth
Consult your local code for frost line depth recommendations
foundation greenhouse
442 cm
174 in
425 cm
167 3/4 in
442 cm
174 in
442 cm
174 in
425 cm
167 3/4 in
425 cm
167 3/4 in
Riga XL/5
Riga XL/6
Riga XL/7
Riga XL/8
Riga XL/9 442 cm
174 in
442 cm
174 in
425 cm
167 3/4 in
425 cm
167 3/4 in
519 cm
204 5/16 in
618 cm
243 5/16 in
718 cm
282 11/16 in
818 cm
322 1/16 in
918 cm
361 7/16 in
501 cm
197 1/4 in
601 cm
236 5/8 in
701 cm
276 in
801 cm
315 3/8 in
901 cm
354 3/4 in
20 cm
7 7/8 in
20 cm or 7 7/8 in
15

Riga XL
980 x 944
Riga XL
980 x 944
T-connector
(pos. 103)
4x
crossbar (pos. 8)
16
Gable Assembly - Start with the assembly of the gables - front and rear gables are identical.
Warning: If you are using the foundation frame, it has to be attached to the base profiles FIRST! (Page 8)
vertical profi le middle, left (pos. 6) vertical profile middle, right (pos. 7)
Attention: Before
assembly, insert
required M6 x 16
(pos. 107) in floor
profile channel. Insert
2 bolts M6 x 12 (pos.
117) into vertical
profiles for mounting
brackets (pos. 6.7) .
Step 1
inside
1x
Attach plastic corner connectors (pos. 100) to floor profile ends
Glazing
Glazing
Phillip head screw 4,2 x 13 (pos. 111)
Crossbar (pos. 8) Crossbar (pos. 8)
Glazing
Glazing
Attention:
Insert noted
quantity of bolts
M6 x 16 (pos. 107)
in profile groove
before assembly.
4x 4x
4x 4x
Step 2
Step 3 Step 4
inside
1x
Attach the T-connector (pos.103) with inserted bolt m6
x 16 and nut M6.
Attention:
Insert noted
quantity of bolts M6
x 16
(pos. 107) in profile
groove before
assembly.
vertical profi le - middle (pos. 5) vertical profi le - middle (pos. 4 )
4x 4x
crossbar (pos. 8)
crossbar (pos. 8)
t-connector
(pos. 103)
4x 4x
1x
1x
crossbar (pos.
8) screwed
with Phillips
head screw
4,2 x 50 (pos.
142).
Connect Crossbar using T-connector (pos. 103) and inserted
bolt M6 x 16 and nut M6 (pos. 107) .
Step 5 Step 6 Attention: Insert noted quantity of
bolt M6 x 16 (pos. 107) in profile
channel before assembly
View from inside
View from inside View from inside
Important:
Look for the
circle and note
of 1x, 2x , etc.
for insertion of
bolts. during
assembly!
Ensure top
angles of
vertical
profiles are
correct!
Push glazing
into floor profile
first, then slide
into vertical
profile.
fl oor profi le (pos. 1)
Align vertical profile channels with holes in floor profile
Note angles at
the top of
vertical profiles
when attaching!

17
Glazing
Glazing
Glazing
Glazing
Glazing
Straight con-
nector plate
(pos. 101)
Connect Crossbar (pos. 8)
with straight connector plate
(pos. 101)and inserted bolts
M6 x 16 (pos. 107) and nuts
M6.
Attention:
Insert noted bolts
M6 x 16 (pos. 107)
in profile groove
before assembly.
2x 2x
*
*
*2x in vertical profile
middle (pos. 4+5) - on left
AND right
# 2x in crossbar (pos. 8)
on left AND right
edge stay bar- curved (pos. 2)
edge stay bar - curved (pos. 3)
T-connector - slanted (pos. 102)
t-connector - slanted (pos. 104)
Slanted connectors are attached to
edge stay bar with self drilling
screws 3,5 x 13 (pos. 117).
Edge stay bar (pos. 2 + 3) with
t-connectors - slanted (pos.
102 and pos. 104) are
connected with inserted bolts
M6 x 16 and nut M6 (pos.
107) on the crossbar and
vertical profile.
Step 7
Step 8
Step 9
The t-connectors are
connected with self drilling
screws (pos. 117) on the
edge stay bar.
View from inside
View from inside
View from inside
##

pos. 16*
18
fl oor profi le connector
(pos. 105)
+ bolt M6 x 16
+ nut M6 (pos. 107)
pos. 1
pos. 2
Insert bolts M6 x 16
(pos. 107) in profi le
groove before
assembly.
1x
1x
inside
Put in the floor profiles (pos. 16)
on the corner connector.
Step 10 Attention: Step 11 Attach roof beam to back gable with
endcap/cover plate (pos. 114)
with Philips head screws 4,2 x 13
(pos. 111). The roof beam end
will slide into slot on edge curves
until flush with back of
greenhouse.
Front gable will assemble
the same way later!
roof beam pos. 26
IMPORTANT!
End of roof beam
must be supported
Step 12
Insert the glazing panel on each side - they
will bend. Insert first into the floor profile, then
into roof beam. Usually, this will take 3 people.
Step 13
Insert curved center profile (pos. 19) top into roof beam and below
into floor profile. Push straight on up to glazing and „thread“ pane.
Curved center profi
les (pos. 19)
enlarged!
Step 14
Slide in subsequent glazing and
curved center profiles. Consider
Roof window position during this
time.
Step 15
Attention: For roof window
installation, insert one bolt M6 x
16 (pos. 107) in each curve
adjacent to window before
assembly. In cross bar under
window(pos. 25), insert 3x M6 x
16.
Attach window
crossbar connector
plate (pos. 115) on
inside with bolt M6 x
12 and nuts.
Attention:
Insert bolts M6 x 16
(pos. 107) in profi le
groove before
assembly.
1x
1x
Push glazing and curved center
profiles together completely.
Roof window position important!
Insert 2 bolts (pos.107) into
each middle vertical profile
for the mounting brackets
(pos. 6.7).
Side Wall Assembly
Warning: If you are using the foundation frame, it has to be attached to the base profiles FIRST! (Page 8)
Recommendation: Begin attaching
lateral supports at this time (pos.
20/21/22). This will help stabilize the
structure and assist with proper spacing.
(see step 18)
Apply silicone
between window
crossbar and the
curves to
prevent water
leakage.

Step 18
19
Step 16 Step 17
floor profi le connector (pos. 105)
+ bolt M6 x 16
+ nut M6 (pos. 107)
Attach floor profile corner connector (pos.
116) with screw 4,8 x 16 (pos. 113).
Attach
assembled
front gable in
same manner
as rear gable.
Mounting roof window
wrong!!! right!
Attach doors with hinge
hardware.
Roof windows slide into the roof
beam from the end. Note
digram below for proper
insertion.
The lateral supports (pos.20/21/22) are attached to all the curves
on the inside of the greenhouse with bolts M6 x 16 and nuts M6
(pos.107) and washer (pos.108).
The lateral supports are also back profiles for the optional tables
and shelves. (See separate assembly instructions!)
For illustration detail
the panes are shown
cutaway.
Then you should look for:
Press Insulation seal 6 - 8 mm in
between the floor profile and
glazing on all 4 walls on the inside
of greenhouse.
Attention:
Please compress the seals,
because it contracts in cold weather.
Hexagon bolts can be inserted later into
most of profiles through a special „hole“ in
the channel. If there is no hole you can drill
one yourself.
T-sealings (pos. 126, 138, 153) for all
doors and windows (altogether ca. 26 m).
Attention:
The t-seal goes only on 3
sides of the roof window - not the top
bar profile.
Attention: The t-seal must be inserted
fi r st in the top profile of the bottom door
before assemble the rectangular tube.
pos. 1
pos. 2
pos. 3
pos. 4
pos. 5
pos. 6
pos. 7
pos. 8
pos. 26
pos. 2
pos. 3
pos. 8
pos. 8 pos. 8 pos. 8
pos. 34
pos. 25
pos. 16 (17, 18)
pos. 19
pos. 19
pos. 19
pos. 35
IMPORTANT!
X

20
Assembly roof window
window profi le (pos. 35)
window profi le (pos. 35)
window profile (pos.
34)(No T-seal in this profile!
First, connect three profiles with screw 4,2 x 60 (pos.
112), then insert glazing and attach fourth profile.
Important!
Neutral cure silicone must be used to seal the corner
connectors/caps (pos. 127) where they meet the
aluminum profiles, as well as all around the window
glazing where it meets the aluminum. This is to avoid any
penetration of humidity.
Attention:
Insert 2 bolts in the groove of the bottom profile - for window
opener!
window profi le (pos. 34)
Phillips head screw 4,2 x 60
(pos. 112)
plastic corner connector (pos. 127)
Automatic window opener
mounting roof window
Incorrect!!! Correct!
The roof window is installed by sliding it on
from the end of the roof beam as shown to
the left (like a ball and socket).
Attach the Sash
Lock (pos. 136) with
Phil-lips head screw
3,5 x 22 (pos. 141).