Characteristics of the TB-12 roof tile per unit:
Length: 43.9 cm.
Width: 26.0 cm.
Weight: 3.15 kg.
Units/sq.m.: 12.8 roof tiles
Useful length: 37.5 cm.
Units per ml eave line: 5 roof tiles
Minimum pitch: 30% – 17º (*)
Useful width: 20.5 cm
Lateral overlap: 5.5 cm
Head overlap: 6.9 / 5.9 cm
Weight per sq. m.: 40 Kg
Waterproofing: Breathable membrane
Battens per sq. m: 2.7
Tejas Borja recommends dry installation for TB-12 roof tile, using screws or special roofing adhesive. TB-12 roof tile has pre-marked holes specially designed for screw installation. If the roof tiles are installed on battens, the useful length must be calculated on site. A tolerance of ± 2% is allowed on the dimensions of the roof tiles according to UNE-EN 1024.
To ensure the good performance of the roof, the under-tile ventilation is always necessary. This will guarantee the durability of the TB-12 roof tiles used to build up the roof with their optimal characteristics, improving the hygrothermal performance of the roof against the moisture resulting from condensation.
Installation must comply with Code of practice for the design and fixing of roofs with clay roofing tiles for the region and Tejas Borja specifications.
(*) Check pitch panel according to the roof length and the geographical area.