Lähe 3 User manual

GREENHOUSE INSTALLATION
MANUAL
Model No 3
www.lahehouse.com

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Dear Customer
Thank you for choosing Lähe Greenhouse!
Please read this guide carefully before installing a greenhouse. Reading the installation manual
will help you avoid mistakes when installing the greenhouse and ensure better results with less
time.
If you have no previous experience in installing a greenhouse or construction work, we
recommend using the services of an experienced craftsman or construction company.
ATTENTION: When opening the greenhouse packaging, the presence of parts and possible
defects must be checked immediately. Missing details and defects must be reported before
installing the greenhouse. Otherwise, the greenhouse may lose its warranty.
All Lähe greenhouses are made of natural, high-quality Nordic heat-treated pine. Wood is a
natural material, so it is not possible to avoid twigs, cracks caused by drying, differences in
shade and other characteristics of wood. Since the wooden parts of our greenhouses are made of
natural wood and not chemically treated, it is natural that they will turn gray over time.
We wish you a successful installation!
Lähe House

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1. FOUNDATION
Greenhouse installation always starts from preparation of the foundation. The appropriate type of
foundation depends on the soil, the purpose and the size of the greenhouse. For Lähe
greenhouses, a strong concrete slab or tape foundation must be used.
The foundation must be horizontally level and all angles 90 degrees. Only a proper, level and
load-bearing foundation ensures an impeccable result. A failed foundation makes it difficult to
install details, causes problems with the operation of doors and windows, and reduces the
stability and lifespan of the greenhouse. We recommend consulting a construction specialist
when choosing a suitable foundation.
NB! Subsequent damage to the greenhouse due to the wrong foundation is not covered by
the warranty!
NB! Laying the foundation in the garden
Leave at least 2 meters of free space from both sides. Required for installing
roof glasses!

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2. TOOLS
Please check that you have all neccessary tools and safety equipment before installation!
Cordless drill (preferably 2pcs), drill bits (TX20-25, HEX4), phillips screwdriver, ladder,
clamping screws (2pcs), wood drill (2, 4 and 5mm), leveling tool, wrench 10mm (2pcs),
wooden support bar (4pcs lenght ca 3m), glass lifting suction cups (preferably 2pcs).
3. DETAILS
Numerous wooden details can be confusing at the
arrival of the greenhouse, but sorting the details will
help solve the buzzle.
Remove the parts from the package and assemble the
similar parts into bundles. Follow the markings on the
details. Two parts with the same symbol will be
connected during installation.
During sorting, you get full confidence that all the
necessary details are present and without defects.
List of details
1. End wall upper triangle (EL-01) – 2 pcs
2. End wall post (EL-02) – 4 pcs
3. Back wall base detail (EL-03) – 1 pc
4. Back wall inner post (EL-04) – 3 pcs
5. Doorpost (EL-05) – 2 pcs
6. Ridge beam (EL-06) – 1 pc
7. Rafter (EL-07) – 12 pcs
8. Roof window (EL-08) – 3 pcs
9. Left side door (EL-09) – 1 pc
10. Right side door (EL-10) – 1 pc
11. Rafter middle detail (DET-01) – 14 pcs
12. Lower base detail (DET-02) – 14 pcs
13. Upper base detail (DET-03) – 14 pcs
14. Roow window middle detail (DET-04) – 3 pcs
NB! Start installing the greenhouse on the foundation only after sorting the
details and thoroughly reading the installation manual.

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Detail views

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4. GLASSES
1. Endwall glass (OK-01) – 4 pcs 5. Roof glass (KK-02) – 11 pcs
2. Endwall glass (OK-02) – 4 pcs 6. Roof glass (KK-03) – 3 pcs
3. Endwall glass (OK-03) – 2 pcs 7. Roof window glass (KL-01) – 3 pcs
4. Side glass (KK-01) – 14 pcs

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5. FASTENERS
1. Wood screw 4x20 (drill bit TX20)
Quantity: 45 pcs
2. Wood screw 5x50 (drill bit TX25)
Quantity: 24 pcs
3. Wood screw 5x70 (drill bit TX25)
Quantity: 66 pcs
4. Wood screw 5x40 (drill bit TX25)
Quantity: 4 pcs
5. Wood screw 6x80 (drill bit TX25)
Quantity: 4 pcs
6. Glass screw 6,3x30 (drill bit HEX4) + pvc washer
Quantity: 169 pcs + 169 pcs
7. M6 x 55mm bolt + nut + washer
Quantity: 12 pcs + 12 pcs + 24 pcs
8. Minifix fastener
Quantity: 28 pcs
9. Long drill bit SHW TX25 for 5x50
Quantity: 1 pc
NB! There may be extra amount of fasteners included!

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6. INSTALLATION OF FRONT WALL
Holes drilled in advance. Screws partially placed in holes. Tighten to the end.
NB! Make sure that the width of the door opening is 1400 mm from both the top and
bottom (otherwise the doors will not open properly). Look also section 15.

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7. INSTALLATION OF BACK WALL
Holes drilled in advance. Screws partially placed in holes. Tighten to the end.
NB! Make sure distances between posts are equal.

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8. INSTALLATION OF RIDGE BEAM
Set front and back wall to the foundation ends (use two longer wooden bars as a support and
fasten them with a clamping screw) and raise ridge beam on top of them.
Attach ridge beam to the front and back wall (metal brackets are already attached).
NB! Ridge beam position determines the side of the roof windows. Make sure the roof
windows get to the desired side. Look also section 13.

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9. INSTALLATION OF RAFTERS
Place the upper end of the rafter to the metal carrier and fasten with an M6 bolt and nut. Start
installation of rafters from front wall and move toward back wall.
NB! Make sure that the edge of the carrier does not cover rafter glass groove (distance ca 2
mm) and rafter should be as against the rear wall of the carrier as possible.
NB! Tighten the nuts only later after installing the rafter middle details!
(Look section 10)

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10. INSTALLATION OF RAFTER MIDDLE DETAILS
Place rafter middle detail between two rafters so that screw is visible from the hole and can be
fastened with a round minifix fastener.

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NB! The round minifix fastener hole should face downwards (inward toward the ground).
Rotate the minifix fastener so that it tightens the rafter middle detail firmly to the rafter on both
sides. Make sure the minifix fasteners are properly tightened! At the same time avoid over
tightening as aluminium minfix fastener may break.

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11. INSTALLATION OF LOWER BASE DETAILS
Place one lower base detail between each rafter on both sides. Holes drilled in advance.

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12. INSTALLATION OF UPPER BASE DETAILS
Place upper base details on top of lower base details. Holes drilled in advance.
NB! You may skip fastening some of them. Do this only after attaching the greenhouse to
the foundation and before attaching the glasses (look section 16).

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13. INSTALLATION OF ROOF WINDOWS
The location for roof windows are recognized by the higher rain covers on ridge beam. Place the
roof window on the rafters and fasten it to the ridge beam. Hinges are pre-attached to the roof
window frame.
NB! To make it easier to install the roof window, we recommend attaching it to the rafters
with a clamping screw.

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14. INSTALLATION OF ROOF WINDOW MIDDLE DETAILS
Attach grooved middle detail (DET-04) under each roof window. Fasten with two screws at each
end (mark and drill holes in advance with a 4 mm drill).
NB! To make it easier to install the middle detail, we recommend attaching it to the rafters
with a clamping screw.

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15. INSTALLATION OF DOORS
Door posts (EL-05) must be vertically level and door opening must be exactly 1400mm from the
top and bottom! (otherwise the doors will not work properly).
Make sure that the hinges on the door and the wooden post fit correctly.
Lift the doors to the hinges, the door with the lock (EL-10) goes to the right side. Attach the door
latches to the inward of the left side door (EL-09).
Install the door stops to the outside so that glasses are not be dameged when the door is opened.
NB! OPENING A DOOR WITHOUT THE DOOR STOPS INVOLVES DANGER TO
BREAK THE FRONT WALL GLASSES.

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16. ATTACHING THE GREENHOUSE TO THE FOUNDATION
NB! Make sure in advance that the corners of the
greenhouse are 90 degrees and the diagonals are of
equal length.
Attach the greenhouse to the foundation in a suitable
place through bottom details. Pre-drill holes.
Depending on the foundation type, choose the
fastening method (screw, dowel etc.).
NB! It is recommended to attach both ends and
sides.
17. INSTALLATION OF GLASS
Make sure in advance that all the rafters of the greenhouse are vertically level.
NB! All rafters must be level before installation of glasses!!!
If necessary, add a temporary support for the front or back wall of the greenhouse frame. So that
rafters are stably level.
When installing glasses, we recommend the following order:
1) roof glasses
2) side glasses
3) front and back wall glasses
Glasses are fixed with a screw and the pvc washer must be between the glass and the screw head.
Be extra careful when attaching the glasses!!!
Tightening the screw too hard will break the glass. It
is recommended to set the drill to the lowest speed
and strenght to 15. Turn the last part by hand so that
pvc washer retains its shape and original thickness.
The last part must ALWAYS tightened by hand!!!
NB! Broken glasses are not subject to warranty
replacement !!!

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17.1. INSTALLATION OF ROOF GLASSES
Carefully place the end of the glass to rafter/roof window grooves and push it all the way to the
end. Do not push the glass with force (glass must move lightly).
Make sure that the glass is evenly grooved and drill a hole to the middle detail (DET-01)/roof
window lower frame with a depth of 30 mm. Wood drill size 5 mm. Fasten the glass with a glass
screw. NB! Do not over tighten!