HOW TO LAY WEYROC BOARDS USING WEYROC D4 ADHESIVE 1. Apply a liberal amount of Weyroc D4 2. A liberal amount of Weyroc D4 Adhesive Adhesive to the top of the joist or I-beam. should be applied onto the shoulder of the Place boards onto a joist and square up tongue and into the groove of the board. using a line. D4 OC YR WE C D4 RO EY W 3. Ensure a small bead of adhesive is forced 4. Nails should be positioned 20-25mm out along the joint on both the top and from each edge and then at equidistant bottom along the entire length of the joint. points in between, using annular ring shank Position board and close tightly. nails 2.5 times the thickness of the board. Only the first row requires nailing. 5. Second and subsequent rows should be 6. Any excess adhesive should be left to dry fixed using Weyroc D4 Adhesive only. and can be easily removed using a stiff Perimeter, cut edges and nail holes should be brush/scraper. sealed using Weyroc D4 Adhesive. W OC - EY R Laying Considerations: • Expansion Gaps - We recommend a minimum 12mm around the perimeter edge. For floors over 6m (or for every 6m run of floor) an additional expansion provision of 12mm should be provided. • Joist Centres - Maximum 450mm for 18mm board and 600mm for 22mm board. • Brick Bond – Weyroc should be laid “brick bond” fashion. Ensure joists are correctly spaced so that the short end joint falls on the centre line of the joist. • Noggins – unsupported short end joists must be supported by a noggin and any unsupported joint which abuts a perimeter wall should also be supported by a noggin.