The urgent energy transition puts pressure on grid owners, design firms and suppliers of prefabricated construction elements. Fortunately, Roxtec knock-out sleeves for cable and pipe entries are ideal also for pre-sealing of large, prefabricated basement walls.
Every player in the energy industry is looking for ways to reduce lead times. It is, for example, obvious that the prefabrication of large walls for electrical substations and similar buildings is rapidly trending. There are good reasons: it is easy to make walls in a dry and clean factory and then quickly raise and connect the building on site. However, also prefabricated walls need smart sealing solutions for cable and pipe penetrations.
Cast-in pre-seal for large walls
The knock-out sleeves (KOS) from cable and pipe seal provider Roxtec have been frequently used by prefab construction companies for several years. The KOS provides safe pre-sealing against flooding and humidity. It makes a difference during transportation as well as onsite, prior to cable and pipe routing and penetration seal installation. The sleeves have mostly been used for prefabricated concrete chambers but are now experiencing a new boom as the perfect sleeves to cast into large walls in the efficient prefab environment. Dozens of them – also in different sizes – can be connected into space efficient clusters.
Safely sealed – before sealing
Roxtec knock-out sleeves keep sites dry during and after construction. They are also used to build in spare capacity for future needs. Whenever it is time for cable and pipe routing through the basement wall, their knock-out plate is simply removed and replaced by a watertight and gas-tight Roxtec UG™ (underground) seal in the corresponding size, such as the popular Roxtec H3 UG™ seal for cables in trefoil formation. This can be done directly – or much later, whenever new needs occur.
