Prepare the Base Floor. It is important that the base floor is Clean (free from loose dirt and concrete dust), Flat (within National Building Standards ±5mm over a 5m span) and where possible, Dry. Please check that you have the correct number of Regupol Corner Pieces.One Regupol Corner Pieces should be used for each internal corner.
1. The Regupol 7210 C is supplied in sheet form. A sharp craft knife and straight edge must be used for cutting to size.
2. Position the Regupol Corner Pieces into each of the internal corners, with the bottom folds laid flat on the sub-floor for stability purposes (see Fig. 1).
3. Unroll a full width piece of Regupol 7210 C making allowance for the 100mm upturn at each end. Cut a 230mm x 230mm square piece from the Regupol 7210 C in the corner that will overlap the corner piece. Move the Regupol 7210 C to overlap the Regupol Corner Piece and turn it up each wall by 100mm. Ensure that all overlapping edges are taped with Regupol Tape (see Fig. 2).
4. Overlap all joints (both along and across the roll) by at least 50mm and tape all joints using Regupol Tape only (see Fig. 3).
5. Turn up edges at walls to ensure the screed will not touch the walls and is of sufficient length to lap under wall linings and skirtings (we recommend the length be 100mm) (see Fig.4a).
Lay a waterproof membrane (e.g. Visqueen), minimum of 0.2mm thick over the entire area (see Fig. 4b).
You can now cast the screed taking the usual precautions to avoid damaging or moving the membrane and the Regupol. |
