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A range of threshold plates and ramps are usually used to accommodate a change in levels or to construct a flat surface to maximize the effectiveness of door bottom seals. The threshold is a vital component of any residential design. These attractive yet functional strips of wood or metal are fitted at the bottom of the external or internal door frames. Thresholds can weaken over time from the continuous foot traffic. This guide teaches you the fundamentals of door threshold replacement for internal and external doorways and how to change them with new models.
The NOR625 is an important part of the Norsound 600 range of different profile threshold plates. This important device is made from hard-wearing T6060 grade Aluminium and anodized to the uppermost standard. These threshold plates are made from hard-wearing aluminum and complement the Nor sound door bottom seals. They offer a level platform for the seal to find against which eventually leads to better noise reduction.
A level threshold is favored, particularly for doors in recurrent use. Internal and external door thresholds must be no more than 15mm and combine chamfered or pencil-rounded corners. Straight up surfaces should be no bigger than 5mm. Door sets selected as smoke and fire-resisting are subjected to the extra burden of smoke closure resistance, and critical ‘resistance’ to a mechanical door closing device.
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