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Step 1.
The trays are placed on
the prepared foundation /
sub base. Each tray has projecting flaps of membrane. Subsequent trays should be laid on these overlaps to inhibit weed growth between trays. |
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Step 2.
The retaining edging keeps the trays in place. Nidagravel can be cut easily with a power or hand saw to conform to any shape required. |
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Step 3.
The wheelbarrows used to deliver the gravel can be driven over the filled trays. The most effective way of filling them is from the front. This helps to compact the gravel already laid with each subsequent trip. |
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Step 4.
The gravel is then simply spread out across the honey combs with an overfill of
approximately 10 to 20 mm
to conceal the trays from sight. |
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Step 5.
The finished project. |
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Nidagravel is very easy to install,
follow this simple guide for a perfect finish.
Sub-base:
Nidagravel 125 is quick and easy to install. Firstly you need to lay a foundation. Paths and pedestrian areas need
only a layer of compacted sharp sand.
Cutting:
Nidagravel can be cut easily with a power or
hand saw to conform to any shape required and numerous trays can be laid in a matter of minutes and subsequently filled with gravel.
Edging:
The area needs to be edged to retain the trays and gravel, using:
• Existing buildings and walls
• Kerbing
• Setts
• Timber
• Metal edging systems
The edging must be at least 60 mm proud of the
top of the sand layer which forms the sub base.
The trays are filled with gravel (25 mm tray
thickness plus 10 - 20 mm overfill to conceal
the trays).
Notes:
As a guide using 10 mm diameter gravel, 1 ton should cover approximately 10 to 12 square metres.
The thickness of the sub base is ependent on
local ground conditions and the envisaged load,
and should be tailored accordingly. |
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