The FG James System The English National Trust, over 40 years ago, conceived the idea of pressure injecting a water proofing fluid into masonry to form a new damp proof course. The Trust had previously tried many other methods with only limited success. Since the early 1960's the pressure injection system has become the most popular and successful method, world wide for establishing a new damp course. This is because of its ability to waterproof in a variety of materials including brick and natural stone and the many types of wall construction including random stone and rubble infill. The injection system is non-destructive and preserves structural integrity because it does not require disturbance of the brickwork or mortar lines.   Installation/Application: The FG James system in a typical application consists of drilling a series of 10mm holes in a course of bricks. Each brick and all surrounding mortar lines are then saturated with a sealing fluid using a pressure variable pump and specialized injection lances. The new damp proof course is installed into the brickwork at floor line. The waterproofing fluid moves below the floor line from the reservoir of fluid within the bricks. Measurements to 100mm below floor line are commonly taken.   Technically Speaking: Natural soluble mineral salts are commonly found in soil. When rising damp occurs, nitrates, chlorides and efflorescent salts migrate through the masonry in solution and accumulate on the wall surface as a white powder. These salts are hygroscopic and attract moisture from the atmosphere, particularly during periods of high humidity, and give the effect of persistent dampness and associated damp smells. Salt contaminated solid plaster will continue to attract atmospheric moisture even after the rising damp has been stopped. To prevent this secondary damp problem the affected area of solid plaster must be removed. The removal and replacement of plaster forms part of the FG James system. Advantages: Speedy, flexible and economical pressure injection method. Salt and moisture contaminated plaster removed at the same time as installation of the damp proof course. Replastering within 2 weeks of damp coursing. Eliminate the normal 4-6 month time lag, costly increases and further mess of stripping and replastering at a later date. Repainting within a further 3-4 weeks. Statewide Service Appointments made at a time to suit client Full clean up, rubbish removal and skirting board replacement 20 year Guarantee ONE phone call, ONE quote, ONE Company for the total job. Replastering: The FG James damp proofing system includes the advantage of replastering 2 weeks after the installation of the damp proof course. This is made possible by the use of our moisture ventilating and salt retarding plaster, which allows controlled drying of the considerable quantity of retained moisture trapped in the wall above the new damp proof course. This replastering method also prevents any secondary dampness or salt blooming problems from hygroscopic salts, which tend to increase with evaporation of the retained moisture. F.G James turns 2 jobs into 1. We eliminate musty smells, paint peeling and all the inconvenience of lifestyle or business activity created by 4 months delay in plaster replacement. Painting: Painting of the completed wall surface can take place 3-4 weeks after our replastering allowing speedy return of the property to normal. FG James also offers a repainting service for your convenience. The complete job is carried out at a fixed price by the one company without the need to organize other specialist trades at a later date. For further information on The F.G James System please call (03) 9885 9444 or send an email to enquiries@fgjames.com.au