Damp Proof Course Edinburgh

We started a new Damp Proof Course job in Edinburgh today at Canning Street Lane the project is to damp proof 4 number former stable blocks that were being used as garages into 10 flats we done the damp proofing design which in this instance we are using Sovereign Injection Cream.

Description A blend of silane/siloxane cream emulsion that reacts with moisture to form a highly effective hydrophobic barrier against rising damp in masonry structures. Produced as a viscous cream the efficacy is superior to paste formulations containing materials that serve no useful long-term purpose and which can leave an unsightly residue. Form Supplied: Viscous cream Pack Sizes: 5 Litres Colour Range: White Contains: Silane/Siloxane BBA Certificate: 05/4251 Properties The viscosity allows the operator to use a Bulk Injection Gun to draw off what is required via the blue nozzle supplied straight from the container and pump back any unused material. When the gun is full, switch the end cap and dispense the cream via flexible injector rod. One full pull on the trigger will insert sufficient cream for one 12 mm hole in 4½-inch brick, two pulls of the trigger for 9-inch brick etc. Preparation Replastering, isolating vertical DPC’s and associated tanking should be installed to relevant Code of Practice or to Sovereign Specification. The damp proof course is inserted into the mortar bed at perpendicular joints and along the joint at 120 mm (maximum) centres at a minimum of 150 mm above external ground level, taking into consideration any changes in ground level. Drill 12 mm holes to a depth of 15-20 mm from the opposite face. After removing the bore dust fill the cavity with Sovereign Injection Cream. Solid brick walls can be drilled from one side only to the prescribed depth. Cavity walls can be treated separately by drilling each leaf, at the same height, as for solid construction walls. If required cavity walls may be treated in a single operation. Drilling through one leaf, pass through the cavity and drill into the second leaf to the required depth will achieve this. The Sovereign Injection Cream can then be inserted into the opposite leaf through the cavity, with the viscosity of the product allowing the first leaf to be treated without the material running out. The vagaries of random/infilled stone walls make them more difficult to treat but it is possible taking the following precautions. Select an appropriate mortar course and following this drilling into the intersections, at a maximum of 120 mm centre, but reducing this where necessary. Where there is a danger of rubble falling and blocking injection holes then the wall should be drilled from both sides, at the same height to half the depth of the wall thickness. If it is problematical to install the DPC into this type of construction then thought should be given to tanking the internal wall to 1.5 metres with Hey’di K11 Grey. A specification for tanking in lieu of a DPC is available from Sovereign Technical Department. Cleaning Clean tools and equipment with soapy water. Shelf Life: 12 months in unopened containers stored between +5oC and +25oC. Close containers securely immediately after use. This product must be kept in a heated storage area. Safety Precautions Avoid skin and eye contact. Handle only when wearing protective clothing. Wash splashes from the skin with soap and water, flush eyes with copious amounts of water and seek medical attention if irritation persists.

On large projects like this when working for a Main Contractor we need to supply Health and Safety Risk Assesments, COSH Details, and copies of our insurance before we can start the job.

Because every wall has to be drilled from both sides we expect to be on site for 2 weeks to complete the damp proof course injection.