FP McCann Roof Tile Bedding Mortar is specifically designed for bedding clay and concrete roof tiles. It is available as both a natural coloured material and in a range of colours coordinating with standard roof tiles.
APPLICATION GUIDANCE • When using this product, good site practice should always apply. FP McCann cannot be held responsible where workmanship has failed to meet the relevant European and British Standards.
• Prior to use all surfaces must be sound, clean and free from any loose material or any other contamination including oils, grease and curing membranes.
• Fresh mortar should be protected from frost and inclement weather. Cement based products will take longer to harden and set at lower temperatures, and should not be used below 5°C.
• When site temperatures are below 10°C allow extra time for hardening.
• Slight batch to batch colour variations may occur. Always work with the same batch of material where possible or premix batches to reduce visible variations.
• Efflorescence and Limebloom are natural phenomena affecting all cement-based materials. Efflorescence can be minimised by avoiding working in cold and damp conditions and protecting mortar from unfavourable weather conditions until sufficiently cured to withstand them.
MIXING & WATER GUIDANCE • FP McCann Roof Tile Bedding Mortar should be mixed using the correct amount of water by using a mechanical mixing method such as using a suitable slow speed high torque drill and mixing paddle or suitable free-fall mixer.
• Mix to a consistency suitable for the intended application. Typically, a 20kg bag should be mixed with 2.5 – 3.5 litres of water.
• Mix product for a minimum of 3 minutes until a homogeneous consistency is achieved. Mixing too wet or too dry will impair performance and may affect final appearance.
• Mixed material should be used within 60min of mixing.
• Mortar must be of a consistent stiffness prior to pointing to reduce any colour variations.
• Adding additional water or trying to revive a mix that has begun to go off will greatly reduce performance and may result in colour variation. For further information on the FP McCann bagged product range, visit https://fpmccann.co.uk/bagged-products/
