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1. TOOLS REQUIRED FOR TILES INSTALLATION
2. INSTALLATION TIPS
- Foundation: To have a safe, sustainable and beautiful roof , the structures and foundations of the
building must meet the structural strength requirements.
- Lama ROMAN Tiles are designed for straight and flat surface roof tiles and therefore, any roof curvatures will result in the tiles being laid unevenly with possible skewed or protruded joints, leading to leakages.
- Wooden roof structures derived from good quality and matured wood are a tradition.
- High Quality lightweight roof systems which are designed by reputable and specialized softwares are also recommended, however, with the manufacturer’s recommendations.
- The tile installation shall comply with the following order:
- Installation of the Main Tiles
- Installation of other accessories such as:
- Skylight Tiles, Vent –Pipe Tiles, Ventilation Tiles and other roof tiles directly related the Main tiles
- Gable End Tiles & Gable End Tile Ends
- Ridge Tiles & Ridge related accessories such as Hip Starter, 2-Way Tiles, Round Ridge Vent Pipe or Antenna Tiles / Ridge.
- 3-Way & 4-Way Apex Tiles.
- Installation Using Lama ROMAN Colour Compound or Coloured Paint.
3. BATTENING & EAVES FIXING
- The recommended minimum Batten Size is 50mm x 25mm (2 inches x 1 inches) with up to 600mm (24 inches) Rafter centres. Batten Spacings of 343mm (13.5 inches) should be the maximum.
- The type of wood used must be of good quality, straight and tandalised to prevent premature roof tiles sagging through age. Steel (hollow section) battens and Metal Trusses are increasingly used for its straightness which facilitates good tiles installation and prevents roof sagging. For safety and durability reasons, metal trusses and hollow sections of equivalent structural loading calculated from internationally approved engineering softwares can also be used.
- The distance between two battens directly under the Standard ROMAN Ridge Tile shall be approximately 50mm – 100 mm maximum (depending on desired headlap). The first batten nearest to the Standard ROMAN Ridge Tile is placed such as to ensure that the top course of the Lama ROMAN roof tiles would be aesthetically covered by the ROMAN Ridge Tiles.
4. SETTING OUT
Battens and Rafters are all planned, calculated, measured, set and built, almost ready for tile laying. Batten joints should be staggered over the roof tiles so that consecutive battens are not all joint on the same rafter.
5. EAVES FIXING WITH GUTTER
Batten Spacings With Fascia Board & Gutter
Batten Spacings Without Fascia Board
- At the verge, hips and valleys, every full and half tile should be nailed or screwed.
- Make sure eaves course does not tilt backwards.
6. ROOF PITCH & HEAD LAP
Technical Elaboration:
• When the slope of the roof is from 17o to 22o, the distance between battens is 320mm, and the head lap is 100mm
• When the slope of the roof is from 22o to 27o, the distance between battens is 330mm, and the head lap is 90mm
• When the slope of roof is from 27o to 31o , the distance between battens is 343mm, and the head leap is 76mm
7. INSTALLATION OF LAMA ROMAN ROOF TILES
1) The tiles will have to be roofed respectively from the RIGHT to LEFT & BOTTOM to UP. Commencing from the bottom row first at the eaves, and at its farthest right. If Gable End Tiles are to be installed, please ensure that the tile is installed approximately, 30mm distance from the outer Fascia Board.
2) Hook the nibs over the wooden battens at their batten lugs, then laying the next tile along side so that it overlaps its neighbor. Complete laying the bottom row of the entire roof tiles . Note that the end of each tile is to be raised by 25mm.
3) Using 60mm-65mm screws or equivalent Galvanised Steel Nails or Wire Nails, fasten/nail all tiles in the first row.
4) Laying RIGHT to LEFT & BOTTOM to UP as per mentioned in No. 1 above as Lama ROMAN Tiles have the underside of the overlap on the left.
5) Tiles can be pre-placed on the roof with a crane for increased efficiency.
.JPG "roofing tiles")
6) Run a string from the peak of the roof tiles at the ridge all the way down to the Fascia Board of the roof every 10 – 12 tiles to ensure that the tiles are laid straight.
7) Should the overhang of the tile be inconsistent between rows or columns, set out roof along eaves starting with the correct over hang at the right hand verge. The overhang on the left hand verge can be corrected using the full tiles by opening or closing the side lap between the tiles. Lama ROMAN Tiles allow a total SHUNT tolerance of 2mm in side lock for adjustment.
8) Lama ROMAN roof tiles can be laid in both CROSS BOND/ STAGGERRED LAYING METHOD or the STRAIGHT BOND LAYING METHOD
8. NAILING OR SCREWING OF ROOF TILES
Due to the possibility of wind uplift, Lama ROMAN roof tiles and Accessories laid on the roof may need to be fastened by either nails or screws. The extent and the method by which the tiles and accessories are to be fastened will depend on the location of the tile and accessories on the roof, the pitch of the roof, the span of the roof, the presence or absence of ceilings etc.