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Deck substructures made of aluminum or wood are suitable individually for fastening the deck boards with visible or invisible fasteners. The distance strip is particularly suitable for the visible fastening of decks, it acts as a spacer and enables freedom of movement between panel and substructure.
At the same time, it supports air circulation underneath the deck; if this is not done, the result is rotting. Profile drilling screws are used to screw the boards onto aluminium profiles; normal wood screws are used for wood substructures.
The distance strip reduces the risk of screws shearing off. The distance strip is made of hard plastic and is intended to prevent the stainless-steel screws from shearing off. Shearing is caused by swelling and shrinkage of the timber, or so-called warping. This warping is particularly pronounced in the boards’ transverse direction. The timber “wants” to take the screw with it, while the lower part of the screw remains securely fixed in the substructure.
Since the density of hardwood and tropical wood means the timber is very hard, the screw has no chance of pressing itself into the timber during warping. When the screw breaks off under this strain, this is known as shearing. The distance strip was developed to prevent stainless-steel screws from shearing off.
It provides a leeway of 13 mm between the substructure and the deck board, allowing the stainless-steel screws to move with the wood.
The distance strips are fastened to the provided drill holes with Ø 4 mm Terrassotec screws and fixed in place (3 Terrassotec screws are required for each distance strip). The distance strip is 73,5cm long and can easily be extended thanks to a plug-in system.
Important: pilot drilling must always be carried out where hardwood/tropical woods are used!
Screws are not included.
Fastening with Terrassotec screws Ø 4 mm.
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