Tiling
Ascertain the mechanical fixing requirements as per the laying and fixing specifications. (As supplied by your nearest MONIER Roofing branch.)
Starting tiling
Tile to the lines from the right-hand side, working towards the left, and moving upwards. Simultaneously secure the tiles as required, and install eave fillers where necessary.
All Coverland tiles should be laid "straight-bond" except for the Elite which must be laid "broken-bond". Purpose-made Elite half tiles are available and full tiles are marked to facilitate ease of laying to the lines.
Mechanical fixing
Should be in accordance with the laying and fixing specifications.
Where clips are used, they should be fixed to the battens. The clips should be at the tail of each tile - as close to the batten as the head of the tile beneath it permits.
Cutting tiles
Purpose-made cut tiles for use at hips and valleys are not manufactured because the position of the cut varies from tile to tile. Cutting of tiles is done on-site, either traditionally by hand or mechnically.
Valleys
Extra care should be taken with the valley construction because of its lower pitch in relation to the rest of the roof and the fact that it drains water away from the slopes. The small tile sections should be secured to the valley battens to keep the valley clear and unobstructed and prevent water from overflowing into the roof space.
Open valley
Once the valley battens have been positioned, a gutter is then formed in the valley using a suitable non-corrodible material. The fascia board is cut away so that no part of the valley gutter is raised above the fascia board when laid. The tiles on each side of the valley should be neatly cut to alignment and laid in such a way that they project over the side welt by at least 50mm. A gap of at least 50mm should be provided in the centre of the valley between the cut edges of the tiles.
Closed valley
Proceed as indicated above; with the exception that the tile should be cut in order to form a neat butt joint in the centre of the valley. Best achieved by cutting one side completely, using a straight edge before starting the other side.
Hips
The tiles from the two adjacent slopes should be cut closely and secured on the hip rafter to provide adequate support for the bedding of ridge tiles. Hip anchors should be used at the bottom edge of each hip rafter on steep pitches.
It is essential to fix all cut tiles carefully at hips and valleys to retain them in position. This can be achieved by drilling and wiring or by using an adhesive such as Coverfill.