Handling of Freezteq must be conducted whilst wearing the full recommended PPE. The Safety Data Sheet should be read in conjunction with these instructions prior to using the product.
Prior to any installation the Freezteq sticks must be placed in a freezer for a minimum of 48 hours. The sticks must be completely frozen solid. They cannot be applied or cut until they have reached this state.
250 Freezteq sticks will typically treat an approximate length of 7m of 225mm thickness wall.
The defective internal plasterwork must be removed to a minimum height of 200mm above the level of damage.
External rendering must also be removed to a minimum height of 200mm above the level of damage.
Drilling can be carried out both internally and externally.
The drill holes should be made with a 22mm drill bit.
When drilling a hole into the wall they should be to a depth of 25mm of the opposing face.
The first hole must be drilled 55mm from the walls edge, then 110mm apart thereon in. (Centre to centre of each hole).
External holes should be drilled at least 150mm above ground level or one mortar course above the existing DPC that has ceased to be effective.
If the internal floor is of concrete construction, drill into the first mortar joint right above the floor’s surface.
If the internal floor is a suspended wooden floor, drill as close as possible to the floor level from the inside into the first mortar joint.
The frozen stick of Freezteq can be cut out of the sachet simply using a pair of scissors or a knife.
The sticks should be pushed into each pre-drilled hole. Sufficient ice sticks must be used to fill the hole completely. The number of sticks used is dependent on the thickness of the wall.
Once all holes have been filled, this is classified as one application.
Once the first application of Freezteq has completely melted, the process is repeated until a total of FOUR applications have been made within each hole.
After the first application has been made, the remaining three applications MUST be inserted within a 24-hour period.
In such circumstances where your Freezteq application is adjoining to an existing DPC system, it may be necessary to install a vertical DPC.
Once the horizontal DPC has been drilled, additional holes should be drilled vertically to a height of 1.2-1.5m following the mortar line.
Once this has been completed, four applications of Freezteq are to be carried out as previously described.
Following the Freezteq application, the holes must not be filled with mortar or the like for a minimum of 3 days.
Holes must be filled using appropriate strength mortar to maintain the structural integrity of the wall. Independent technical advice should be sought with regard to the integrity of the structure.
Redecoration can only be carried out when the plaster is completely dry.
Should the plaster need to be replaced due to the original damp issue, re-plastering below the Freezteq DPC must be carried out using a suitable cement-based coating containing a waterproof additive.
Re-plastering above the Freezteq DPC should be done with a regular or breathable coating, depending on moisture levels.
This installation guide is for general guidance only. It does not constitute as a detailed guide for specific application. Due to the unique circumstances of each and every site, each installation must be assessed on a project by project basis. There may be many variables to consider, such as services running through/across the wall. Independent professional advice should be sought on each installation.