Introduction 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.
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Overview To build your new greenhouse you will need the following tools: Spirit Level Pencil Tape Measure Hammer Drill Hammer Wooden/Rubber Mallet PZ2 Screwdriver Bit 4mm Drill Bit 7mm Masonry Bit Tall step ladders x 2 Cordless Screwdriver (2 would be ideal, 1 to drill and 1 to screw) There are 8 different types of screws used in the construction of the greenhouse.
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.
Side Assembly Begin by laying out the components for your two extension sides flat on the ground as the diagram below shows (8’ example shown throughout). Use the table below to help identify the components with the part numbers and sizes. First of all drill pilot holes through the bottom of each mortise on the cill section (diagram 4, page 7).
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Side Assembly Internal Pilot hole, it is easiest to drill Diagram 2 down through the middle of the Make sure the side bars are pushed all the mortise to make way in, you may find they need a light tap sure you get the with a wooden mallet or something similar.
Frame Assembly Before you position your side section onto the dwarf wall you should drill the pilot holes in the bottom of the side corner bars shown in diagram 6. The position of this hole should be about 19mm from the side face and 30mm measured from the bottom of the bar. You can now position the side section on the aluminium base, you will need a helper to hold this in place or simply strap it to a set of steps.
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Frame Assembly External Keep faces flush Diagram 6 Diagram 5 Make sure the side corner bar is located correctly and the front face is flush with the end of the eaves bar, mark out the pilot hole positions shown in diagram 7 and 8. Diagram 10 and 11 on the next page show the direction External Front the holes should be drilled in.
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Frame Assembly Before fixing this corner make sure the inside Diagram 9 faces are all flush (diagram 9). When you are happy that the purling is located correctly (it is normal that the purling is set back slightly from the glass rebate on the front of the building) start by inserting the 80mm screw through the side of the eaves bar into the tenon on the end of the purling.
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Frame Assembly Repeat the last few steps to install the right hand side of the frame. Keep these sections supported in this state as the frame is quite fragile until it is completed. Next you will partially fix the door in place to help brace the two front gable sections together.
Door Installation Your door will arrive already installed in the frame with Diagram 31 Diagram 12 the lock and lock plate attached. All you need to do is attach the door handle to install this to the building. Start by sliding the spindle through the top hole in the door (diagram 12), then locate one of the door handles on this and fix with the screws provided.
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Door Installation Take the door to the greenhouse frame assembly Diagram 14 and slide it into place. Unlock and open the door so that it is 90 degrees to the frame as shown in the illustration on the opposite page. Fix through You will need to pack the outside edge of the open this face...
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Door Installation Dia. 18 Dia. 17 should four 50mm screws points shown as ‘A’ below. You don’t want to fix to the brickwork until you are absolutely happy with the position and trueness of the greenhouse frame. O n l y w h e n t h e greenhouse...
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Door Installation Dia. 20 Slot the above door glazing bar into the mortise slot in the door frame header and secure it with a 50mm screw. Diagram 20 External...
Extension Assembly Slide left hand side extension up to the first side Dia. 21 section. Locate the tenon on the end of the eaves extension bar with the mortise slot on the standard eaves bar. Dia. 22 Internal Diagram 22 Diagram 21 Using eight 25mm Internal...
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Extension Assembly Dia. 24 Diagram 23 Dia. 23 Internal Diagram 24 Internal Next fit the side extension bar, first slot the tenon on the end of the bar into the mortise in the cill. Slot the top into position, lining the edge of the bar up with the joint of the two eaves bars.
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Extension Assembly Repeat the last two steps to fix the other extension side to the building. Now install the rear of your greenhouse, refer to page 9 and 10 for the fixing of this.
A-frame Assembly You can start building the A-frame next. Take the eaves extension braces and locate them in the mortise slots in the extension side bars. Pilot hole and fix these with 40mm screws. Make sure the flat face that meets the side bar is seated correctly before fixing.
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A-frame Assembly Dia. 27 Drill pilot holes in the roof extension bars (EV0486), diagram 27. Measure from the top of the mortise slot and drill 3 holes. Now slot the roof extension bar into place and fix with 40mm screws. You can leave the fixing of the bottom of the roof bar until a later stage.
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A-frame Assembly Dia. 29 Diagram 29 Internal EV0538M Now install the ridge brace (EV0538M) to the A-frame section, use 40mm screws to secure this. Be sure to keep the tenons at the top of each roof bar in line so that the ridge will slot into place easily.
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A-frame Assembly Dia. External Now the A-frame bracings are in place and secured drill a pilot hole down through the roof bar (EV0486) into the eaves bar and fix with a 100mm screw. When you do this make sure the roof bar is pulled in tight to the eaves bar.
Roof Assembly Dia. 31 Dia. 32 Diagram 31 External You will need two sets of step ladders at this point and a helper. Slot the ridge bar onto the tenons of the roof corner bars at both ends of the ridge. The central glazing bar on the front gable should locate with the ridge bar below the joint with the roof bars (diagram...
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Roof Assembly Diagram 32 Diagram 33 X-ray X-ray 18mm The central glazing bars should also have a pilot hole drilled and be fixed to the ridge bar with an 80mm Diagram 34 screw (diagram 35). Diagram 35 External...
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Roof Assembly Dia. 36 Diagram 36 Again with a helper supporting the other end of the ridge, locate the extension end of the ridge to the end of the first ridge, then do the same at the other with rear gable.
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Roof Assembly Dia. 37 Internal that A-frame complete ridge sections are in place it’s a good idea to fit the aluminium ridge and eaves braces. Use 40mm screws to fix these in place. (it looks better if you have the manufacturing marks facing to the rear of the building).
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