Alton Evolution Octagonal 9x9 User manual

1
04/19

2
Contents:
Introduction
Base Preparation
Overview
Base Assembly
Side Assembly
Door Installation
Fix to Aluminium Base
Board Installation
Roof Assembly
Lantern Assembly / Attachment
Roof Vent Installation
Louvre Assembly and Positions
Glazing (part 1)
Gutter Installation
Glazing (part 2)
Staging Installation
High Level Shelf Installation
Downpipe Installation
Fixing Down
Packing Lists
Section
-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Page
3
4
5
6
7-16
17
18
19
20-22
23-29
30-32
33-39
40-42
43-46
47-49
50-56
57-59
60
61
62-64

3
Thank you for purchasing your new Alton greenhouse. We recommend you familiarise
yourself with the instructions and read all safety information before you commence assembly.
This instruction manual is also available online at www.greenhousepeople.co.uk in the
technical help section should you need to reprint it. Should you require any additional advice
you can always call us on 01782 385409.
Safety Warning
 Glass, aluminium and timber can potentially cause injury. Please ensure you wear protective
goggles, gloves, headgear and suitable footwear when assembling and glazing the building.
 Please remember that glass is fragile and should be handled with extreme care. Always clear
up and dispose of any breakages immediately.
 Do not assemble the greenhouse in high winds.
 DIY assembly - For safety reasons and ease of assembly, we recommend that this greenhouse
is assembled by a minimum of two people.
 Please clear all lying snow from the greenhouse roof as it can cause the roof to buckle or
collapse.
Site Preparation
 When selecting a site for your greenhouse, it is vital that you choose as flat and level an area
as possible.
 A concrete or slabbed base will provide the most solid foundation for your greenhouse. A
slabbed base would be our preferred choice as this helps with drainage.
 Avoid placing your greenhouse under trees or in other vulnerable locations.
 To minimise the risk of wind damage, try to select as sheltered a site as possible, e.g. beside a
hedgerow or garden fence.
Additional Considerations
 Please bear in mind that assembling your greenhouse can be time consuming. You may need
to spread the construction over two or more days. We recommend that you avoid leaving the
building partially glazed. If you ever have to leave your greenhouse half assembled and not
anchored down, weigh it down with slabs or bags of sand to stop the wind moving it.
 You will find it helpful to prepare a large, clean and clear area in which to work in. A garage
floor or flat lawn area is ideal.
 If you have arranged for someone to install your greenhouse for you, please check that all
components are included and are correct before your fitter comes on site. Most parts are
numbered and can be identified by a stamp or removable label. Alternatively, the
components can be identified by lengths detailed in the packing list in the latter pages of his
manual.
 Remember this is a natural timber product. Cedarwood can vary from white through shades
of pink to dark brown colours, this natural variation is a characteristic of cedar. The wood will
soak up some water to start with and some staining may occur. This will settle down over
time and the greenhouse will really blend with its surroundings. If you want to avoid this
and give your greenhouse a more permanent finish you could apply an oil or spirit based
product (it would be best to do this before glazing!).
Introduction

4
B
A
It is necessary to leave sufficient working room around your greenhouse when you're putting it up
and also to allow for the possible need to replace a piece of glass in the future. If possible try and
leave a space of 2ft/610mm around the greenhouse.
Locate the greenhouse where there is maximum amount of sunlight and avoid if possible any shade
from trees, fences or other buildings. Over-hanging branches can be a particular nuisance and should
be avoided.
Choose a site where the greenhouse is relatively easy to get to and convenient to bring water to and
possibly a supply of electricity.
Finally, and most importantly, choose a site where your Alton Greenhouse will look right so that it
will complement your garden.
Base Preparation
1
Slab Base Size (Recommended)
Note: The base should always be larger than your
building.
The measurements given in ‘A’ and ‘B’ should only
be used as a guide.
Greenhouse
Width
Greenhouse
Length A (mm) B (mm)
9’2” - 2800mm 9’2” - 2800mm 3000 3000
SOIL
50mm
5 : 1
3’ X 2’ Slab (2” thick)
(910mm X 610mm)
Recommended

5
Overview
2
25mm Pan Head
(Stainless Steel)
40mm Pan Head
(Stainless Steel)
80mm Countersunk
(Stainless Steel)
19mm Pan Head
(Stainless Steel)
25mm Countersunk
(Stainless Steel)
13mm Self Drilling
EV0329 EV0328 EV0330EV0331 EV0332 EV0333 EV0334
25mm Large Pan Head
(Stainless Steel)
35mm Countersunk
(Stainless Steel)
EV0338
EV0364EV0326
You should use the image on the front cover as a reference as to what
the greenhouse should look like as you go along.
If you are going to treat the greenhouse yourself then it would be best to do it before
you begin building the frame.
Set out your metal base on your prepared site, but don’t fix this down until the greenhouse
is complete. Follow the manual and build the sections as recommended.
When screwing through one piece of timber into another it is always recommended to pre-drill the
first piece. This will prevent the timber from splitting which could weaken the structure.
Glazing the structure is very simple but be very careful of the edges of the glass as the pane will
break into tiny pieces if you catch an edge on a hard surface such as concrete. You should also wear
suitable gloves when handling the glass (this also helps to keep it clean).
Option of gluing joints. This is not required for strength but you may do it if you wish. However bear
in mind if you ever intend to move or adapt the greenhouse in the future this would make it very
difficult. The best glue for this would be Poly Urethane Wood Adhesive. Take care when applying
this, you only need a very small amount as the glue expands to fill the joint. If you use too much it
may seep out of the joint and could be unsightly! Try a test piece before you start.
Read through the rest of this manual before starting, you are less likely to miss something
doing this and you will have a better understanding of how it all works.
50mm Countersunk
(Stainless Steel)
40mm Countersunk
(Stainless Steel)
To build you new greenhouse you will need the following tools:
Spirit Level Pozidrive No. 2 Screwdriver Bit
Pencil Cordless Screwdriver (2 would be ideal, 1 to drill and 1 to screw)
4mm Drill Bit Hammer
Hammer Drill Step ladders
7mm Masonry Bit Tape Measure
There are 10 types of screws used in the construction of the greenhouse. These are as follows:

6
Base Assembly Double door? Refer to
special assembly book
3
EV1001M
EV1014M
Lay out your aluminium base sections as diagram 1 shows.
The base brackets (EV1001M) attach to the base sections
using the M6 bolts supplied (diagram 2). The bolts slot into
the bolt channel in the aluminium base and fix through the
largest hole in the base bracket. Also slide in bolts and use
them to attach five small base brackets (D174M), one in the
middle of each EV1015M (diagram 3) and one either side of
the door opening (diagram 4).
EV1015M
Diagram 1
Dia. 2
Diagram 2
Internal
Top View
Internal
Internal
Dia. 3
Dia. 4
Diagram 3
Diagram 4
EV1015M
EV1017M
EV1017M
EV1014M
EV1015M
EV1018M
EV1015M
EV1014M
EV1014M
EV1015M
EV1014M
D174M
D174M

7
Side Assembly
4
Start by attaching the cast
eaves brackets (EV1000M) to
four eaves rails (EV0953).
First of all drill pilot holes
through the eaves bracket
into the end of the eaves
bar. Be careful not to drill all
the way through the rail!
Once the bracket is firmly in
position fix with the 40mm
countersunk (CSK) screws
(diagrams 5 and 6).
Diagram 6
Diagram 7 Diagram 8
X 4
Diagram 5 Dia. 6
40mm Screw
Once you have attached all the cast eaves brackets you can fix two standard side glazing bars
(EV0969) to each of the prepared eaves rails. Make sure the glazing bar is tight into the bracket
(diagrams 7 and 8), drill pilot holes and fix using 50mm CSK screws. Don’t over tighten these screws
as it may make it difficult to glaze later in the build.
50mmScrew
EV1000M
EV0953
EV0953
EV0953
EV1000M
EV0969
EV0969
EV0953
EV1000M
External
Internal
External

8
Side Assembly
4
X 4
Diagram 9
Diagram 10
Dia. 10
With the side glazing bars
attached (diagram 9) you can
now insert the mid rail (EV0956).
Drill a pilot hole through the
side of the glazing bar and fix
with an 80mm CSK screw
(diagram 10). Fix both ends of
the mid rail like this.
80mmScrew
Next slot the cill into place. This is
not fixed at this stage, it is secured
later in the build (diagram 11).
Assemble four identical frames
like this.
Diagram 11
Dia. 11
EV0950
EV0956
EV0969 EV0969
External
External

9
Side Assembly
Now you have four 2’ side frames assembled you can
start assembling the greenhouse sides on the
aluminium base. Place the first side assembly to the left
of the door, position this on the base and either ask a
helper to hold it in place or secure it to a step ladder.
With this in place you will then need to slot a cill section
(EV0952) in next to it ready for the next side frame
(diagram 12).
Do NOT fix any frames or cills to the aluminium base,
this is done after the door installation on page 18.
EV0952 Diagram 12
4
Top View
Doorway

10
Side Assembly
4
40mm Screw
EV0954
Diagram 13
Diagram 16
Dia. 16
You now need to attach the standard glazing bar (EV0970)
to the 4’ eaves section (EV0954). Drill a pilot hole in the
outside face of the eaves bar into the mortice hole, then
slot the top of the glazing bar into the mortice hole and fix
with a 40mm countersunk screw (diagram 14).
Slot the assembly into place, locating the bottom of the
glazing bar onto the tenons of the cill sections (diagram
15). Drill the pilot holes in the end of the eaves bar again
and then fix with 40mm CSK screws (diagram 16).
EV0952
External
EV0970
EV0953
EV0970
EV0970
Diagram 14
Diagram 15
External
External
EV0954
EV0952EV0952
40mmScrew
EV0954
Dia. 14
Dia. 15
Top View
Doorway

11
Side Assembly
4
Pilot drill and attach the next standard 2’ side frame.
With this in place you will then need to slot a cill section (EV0952) in next to it ready to repeat the
previous page diagrams 14 through to 16. Continue working like this in a clockwise fashion until all
four of your 2’ side sections are in position.
Top View
Diagram 17
Diagram 18
Top View
Doorway
Doorway

12
Side Assembly
4
Top View
Top View
Top View
Doorway
Doorway
Doorway
Diagram 19
Diagram 20
Diagram 21

13
Side Assembly
4
Diagram 23
40mm Screw
EV0970
EV0970
Diagram 22
Diagram 23 Diagram 24
External
External
Dia. 23
Dia. 24
Top View
EV1035
EV1035
EV1035
EV0965
You now need to attach the last two glazing bars
(EV0970) onto the front eaves section (EV0965). Drill
two pilot holes in the outside face of the eaves bar into
the mortice holes, then slot the top of the glazing bars
into the mortise hole and fix with a 40mm countersunk
screw (diagram 23).
Slot the assembly into place, locating the bottom of
the glazing bar onto the tenons of the cill sections
(EV1035) (diagram 24). Drill pilot holes in the end of
the eaves bar again and then fix with 40mm CSK
screws.

14
Side Assembly
Now slot the three 4’ mid rails (EV0957) into position.
Drill a pilot hole through the inside face of each of the
(EV0970) glazing bars central to the mid rail and fix
with a 50mm countersunk screws (diagram 26).
The mid rail brackets (EV0999M) can be fitted with
40mm Pan head screws, note that the screw positions
on the mid rail brackets are different in diagram 27
(left hand) and 28 (right hand). This is to leave space
for the staging brackets.
There is also an order to inserting the screws, follow
the order on the diagrams as it makes installing them a
little easier. 1 and 2 go into a fixed mid rail that was
part of a 2’ side frame, 3 and 4 go into the loose end of
the mid rail and 5 always picks up the loose mid rail
through the tenon.
Diagram 25
Dia. 26
4
Dia. 27
Internal
Dia. 28
EV0957
Top View
Doorway
Dia. 27
Dia. 26Dia. 26
Dia. 28 Dia. 27
Dia. 28
Dia. 27 Dia. 26 Dia. 28

15
Side Assembly
4
Diagram 27 Internal
1
2
3
4
5
EV0999M
Internal Diagram 26
EV0957
EV0956
EV0957
EV0969
EV0970
Diagram 28 Internal
3
4
1
2
5
EV0999M
EV0956
EV0957
EV0969
50mmScrew

16
Side Assembly
4
Next install the short rail sections to the left and right
of the door (EV0961 / EV0962). Slot theses into place
and fix with mid rail brackets (EV0999M), diagrams 27 /
28 on the previous page. Then drill a pilot hole
through the sides of the glazing bar to the left and
right of the doorway and secure the mid rail with an
80mm CSK screw (diagram 30).
Diagram 29
Dia. 30
Dia. 28
Doorway
Diagram 30
External
80mmScrew
EV0961
EV0961
Mirror Image
Dia. 27
EV0962

17
Door Installation
Before you can install the door section you need to fit the
door handle. Slide the spindle through the lock to give
you the position of the handle on the door. Fix the
handle with the 3.5 x 25mm countersunk screws
supplied.
Diagram 31 Diagram 32
Diagram 33
Slot the door section into
the assembly, the internal
surfaces should be flush.
Once in position drill pilot
holes and fix with 50mm
screws (EV0333), suggested
locations shown by the
arrows in diagram 33.
Dia. 32
5
External
Top View

18
Fix to Aluminium Base
6
40mm Screw
25mm Screw
40mm Screw
Internal
DoorFrame
GlazingBar
25mm Screw25mm Screw
EV1001M
Glazing Bar
Diagram 34
Diagram 35
Diagram 36
With the door frame fixed to the
assembly you can now fix the
aluminium base to the greenhouse
frame. Follow the examples in diagrams
34, 35 and 36, these show what size
screw should be used. On each base
bracket, its best to start by fixing the
40mm Pan head screws (EV0332)
followed by the 25mm Pan head screws
(EV0331). You may find you need to
loosen the nuts slightly to get the best
fit, remember to tighten them again
afterwards.
Important: Only use 25mm Pan head
screws for screwing into the cill
sections.
Internal
25mm Screw
(EV0331)
Internal
Dia. 35
Dia. 36

19
Board Installation
7
Diagram 37
Diagram 38
If you have purchased the low level louvre you can either fit it
now or simply leave out the board where you want the louvre
to be positioned and fit it later.
To fit the boards slot the top edge into the mid rail (the top of
the board has the baton closest to the edge), then push the
bottom of the board in until it touches the frame. The board
will drop slightly and the bottom baton will rest on the cill.
Work your way around the building until all the boards are in
place. Once in position you can fix them with the cedar panel
capping (EV0979), diagram 38. This capping is used all around
the building apart from either side of the door and in the
middle of the 4’ sides where special (EV0985) capping is used
(diagram 40). Fix the capping in place with 40mm Pan head
screws.
Optional low Level louvre? See special help sheet.
EV0979
40mmScrew
Diagram 39
EV0979
Section
EV0985
Section Diagram 40
Dia. 38 Dia. 40

20
Roof Assembly
8
Once you have all the sides built up
with the door in position you can
then begin assembly of the lower
roof structure (diagram 41).
Lay the lower roof frame
components out on the ground.
Assemble by attaching the roof
glazing bars (EV0966) to the corner
brackets (EV1005) and then the
corner brackets to the lower frame
horizontals (EV1080) using eight
(EV0364) 35mm countersunk screws
(diagram 42) .
Repeat the above until the lower roof
frame is complete.
Dia. 42
Bottom View
Diagram 41
X 4
Diagram 42
EV0364 35mm CSK
EV1005
EV1080
EV0966
EV1080
Internal
EV0966