The selection of mortar for an application is very important and should take into consideration structural requirements, the type of construction, position in the building and degree of exposure. In addition, when specifying Lignacite Facing Masonry, the designer will need to select the appropriate colour of mortar in relation to the colour and texture of the facing units.
Guidance for the specification of mortar for durability can be assessed in accordance with Published Document PD 6697. This provides recommendations for the quality of masonry units and mortar designations for various conditions of use, such as work below or above the external ground level.

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