BBA Agrément Certificate
Dryrods are the next generation treatment for rising damp. They provide a higher level of performance and quicker installation speed than any other rising damp treatment currently available.
When treating from the outside, a row of holes should be drilled into the mortar course 120 mm apart and approximately 150 mm above the ground. When treating from the inside, the holes should be drilled into the lowest accessible mortar course.
Depending on the thickness of the wall, mark the drill bit ‘x’ distances from the tip (as per chart shown in image)
Drill the holes the necessary depth ensuring you reduce your drilling pressure once you reach 40 mm short of the full hole depth. Reducing pressure ensures a cleaner hole and prevents damage to the far side of the wall.
If necessary, re-drill the holes twice to remove any excess debris. If excess debris continues to obstruct full rod insertion the Dryzone System Hole Clearing Tool can be used to ensure the hole is completely clear.
Wearing suitable gloves, remove the rods one by one from the packet. Where necessary, e.g. 4.5” walls, cut the rods to the appropriate length using the Dryzone System Rod Cutting Tool and insert them into each of the drill holes.
Ensure the rods are recessed approximately 5 mm from the brick face.
Dryrod damp-proofing rods are patented, 12 mm diameter grooved rods that carry a water-repellent material. The rods are inserted into pre-drilled 12 mm holes along the mortar lines of a building. The water-repellent they carry diffuses deeply into the damp masonry, curing to form a highly effective barrier to dampness. This forms a damp-proof course, which stops further rising damp from occurring and helps the wall to dry out.
Dryrod is effective where the wall is highly saturated, cold or warm (it can be used in freezing conditions), very porous, highly alkaline (new mortar), and with low alkalinity (old mortar). To be applied by a suitably qualified contractor.
Features and benefits:
C45/220 Chemical injection dpc system
C45/30 Chemical injection dpc system
Third party product certification