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Rods & Mortar is the traditional 'wet mix' building method used for virtually any type of glass block panel, be it internal, external, straight or curved to fire rated.
It can be used in conjunction with all different block sizes and width dimensions from 80 or 100mm. Usually 10mm horizontal and vertical joints are used, the exception to this is curved walls where the vertical joint width on the outer face will vary dependant on the internal radii.
Joints are a white finish created by grouting the panel in a slightly diluted mix of the glass block mortar.
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Tips for Rods & Mortar Installations
- Glass block walls are self supporting, but not load bearing
- For best integral strength, glass blocks should be installed into a four sided pre-prepared opening. This opening can be timber, brick, steel, concrete or blockwork
- Glass blocks expand and contract with temperature change.
- Glass blocks should not be installed when the surrounding temperature is 5°C and falling or 30°C and rising
- Expansion material must be incorporated to the perimeter opening.
- Openings must be square and perpendicular and made to suit glass block modules. Glass blocks cannot be cut like masonry bricks or tiles.
- Maximum panel size without intermediate slip joint is 25m² with no single dimension exceeding 6m in any direction
 To learn how to install the Rods & Mortar system, click here.
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Initial Clean & After Care Maintenance
Do not clean with any acidic products, the best product for cleaning is water. Polish each block with a soft cloth using good old elbow grease.
Note: Clean face of block as work proceeds. The glass block installer should have left the glass block wall in a clean, unblemished condition. Requiring only periodical cleaning to maintain an excellent appearance. However, there may be a residue of cement on the glass surface left from mortar/tiling grout identified by whiteish bloom when dry. This may be removed by use of proprietary cement stain remover. (BAL HD Tar Cleaner)
Hydrofluoric Acid or Derivatives Must Not Be Used on Glass Blocks. Paint or cement may be removed by a blade taking care not to scratch the surface of the glass. Periodic cleaning is required using clean water and buffing up with a chamois leather or in clean water use a proprietary glass cleaner and clean off with a lint free cloth.
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