Single Span Assembly Instructions

• Check that all parts are present Your safety matters Please take care during construction and follow all guidance provided. [email protected] northernpolytunnels.co.uk Important Failure to follow these instructions may compromise the structural integrity of your polytunnel. NP Structures Ltd accepts no liability for damage resulting from misuse or failure to follow instructions. Tools Required Stakes/Pegs Spirit Level Spade Tape Measure Marker Pen String Hammer Stanley Knife Battery Drill Angle Grinder Wire Cutters Spanners Gloves Goggle/Eye Protection/PPE G-clamp

Steel Box Profile Overview 12 Side Vent Skirt to Net 48 Wiggle Wire Channel Over End Hoops 50 Above Door Louvre 52 northernpolytunnels.co.uk • 01282 873120 • [email protected] northernpolytunnels.co.uk • 01282 873120 • [email protected]

Tools needed: tape measure, string, spirit level, markers/canes Choose a level, even site where possible. Avoid stony ground, especially if trenching in the polythene, as this may cause damage. Allow at least 1 metre of working space around the structure. • Use string (thin polypropylene twine) and pegs to plan out your foundation positions • Use the table provided to check the diagonal and hoop spacing measurements — this ensures your layout is square. • Mark the stringline at each hoop position and place a ground tube at each mark. The diagram is for illustrative purposes only. Repeat the layout...

Installing Base Plate Foundations Method You may wish to mark out your foundation placement with markers or stakes before positioning the actual foundations. For “Foundation Measurements” see page 6. 1. Position the Base Plates 6 Drill four holes per plate: 12mm diameter x 100mm deep into the concrete. The stringline should touch the outer edge of your foundation tubes. Use the stringline to help you place your last foundations (N) as well as any other foundations e.g. 3 and 4. 3. Stringline the length of the tunnel from 1 and 2 to last foundations (N). Vacuum out dust from each hole to allow...

Installing Concrete Foundations Digging Holes For End Frame At each gable end, mark the post positions as shown in the diagram. Then dig: 1. Dig the Foundation Holes Follow the diagram for hole size. For “Foundation Measurements” see page 6. 2. Pour Concrete into Each Hole • Two 300mm² holes for the door frame posts • Two 300mm² holes for the outer upright posts (not required on 5m tunnels) Ensure holes are evenly spaced and aligned. Centre point 500mm Concrete block width Side View Let the concrete cure for at least 48 hours (longer in cold or wet weather). 5. Mark the End Frame Lines Once set,...

Steel Box Profile Overview Base Rails Pack(s): CSS206, CSS204 Familiarise Yourself With The Steel Box Profile Bracket Assembly This steel box profile (WBP) is used throughout the construction of your EnviroPro Single Span Polytunnel, including end frames, base rails, side rails. It is useful to familiarise yourself with this profile to avoid confusion. Inner Hoop Foundations = a Using Cotters Cotters are used throughout for attaching brackets to the steel box profile. Cotters come REVin various A sizes. 1. MANUFACTURER IS TO ENSURE THAT ANY FABRICATIONS ARE PRODUCED TRUE & SQUARE TO GOOD ENGINEERING...

For all inner hoop foundations (a) 1. Loosely assemble inner hoop base rail bracket Leave bolts handtightened at this stage. 2. Slide bracket onto inner foundations Leave bolts handtightened at this stage. 1. Assemble end hoop base rail bracket For “Bracket Assembly” see page 13 2. Slide bracket onto end hoop foundations For “Bracket Assembly” see page 13 3. Loosely attach cotter 4. Slide base rail onto brackets 3. Loosely attach cotter 4. Slide base rails onto corner brackets Cup Square Bolt M8 x 40mm Join base rail profiles when required Cup Square Bolt M8 x 40mm Final Assembly northernpolytunnels.co.uk...

Hoop AssemblyHoop partsLevel and tighten base rails Width For each hoop Maintaining a level base rail is of particular importance if you have side ventilation. 2. Slide hoop onto foundation tubes northernpolytunnels.co.uk • 01282 873120 • [email protected] northernpolytunnels.co.uk • 01282 873120 • [email protected]

Install Ridge Bars Bracing & End Frame 19Brace Bar Configuration1. Attach first ridge bar 2. Connect ridge tube lengths Starting at the front hoop, attach first ridge bar piece (CSS308) to hoop using nut and bolt. 3. Fasten ridge tubes to hoops For each inner hoop, connect a length of ridge tube (CSS309)... ...and attach to hoop with nut and bolt. Continue for each hoop. On the rear hoop, cut the protruding ridge bar flush with the outer face of the hoop. Insert plug RPP50. northernpolytunnels.co.uk • 01282 873120 • [email protected] northernpolytunnels.co.uk • 01282 873120 • [email protected]...

Fitting Brace Bars 1. Place keyhole brackets Place keyhole brackets on hoops. Splay the bracket to slide over the hoop. Note bracket configuration for brace bar A & B on hoop H2. 3. Attach brace bars Attach brace bars to key hole clamps with nut and bolt. Ensure all hoops are vertical before fully tightening up. Fix brackets to hoops with tek screws. Refer to image below for final configuration. Mirror configuration to complete the front end bracing as pictured below. Then repeat at the rear end of the tunnel. Note hoop H3. Attach bracket with tek screw and bolt brace bar A to bracket. Top down...

Review the diagrams and tables for the correct gable end configuration. 6m & 7m wide configuration Box profile lengths are oversized and require cutting to size. Box profile lengths are oversized and require cutting to size. northernpolytunnels.co.uk • 01282 873120 • [email protected] northernpolytunnels.co.uk • 01282 873120 • [email protected]

8m & 9m wide configuration Front view Side Rail only required if polytunnel includes side rails. Gable End Parts Box profile lengths are oversized and require cutting to size. Width northernpolytunnels.co.uk · 01282 873120 · info@npstruc tures.co.uk northernpolytunnels.co.uk · 01282 873120 · info@npstruc tures.co.u