The New Inspection Device for Termite Damage:

The Resistograph F150-S was designed for finding termite galleries inside finished walls without damage to the wall surface. This exciting new technology offers an added level of professionalism to the termite industry. Now, you can be certain of the damage and activity inside a wall void without costly repair bills.

The Resistograph F-Series Can Help With:

• Damage Claims - reduce average costs by only repairing actual damaged areas
• Termiticide (Liquid or Bait) Research - conduct detailed ongoing analysis
• Treatment Sales - more high tech and confident inspection of homes
• Pretreatments - end the cycle of constant pretreatments on the same house
• Treatment Accuracy - provide surgical precision for termite treatments
• Bait Treatment Monitoring - provide peace-of-mind and increased accuracy
• Reduce Liability of New Company Acquisitions - thorough evaluations

How the Resistograph F150-S Works to Find Damage:

The Resistograph F150-S finds termite galleries by detecting voids inside the wood. As each location is probed, a small piece of water proof wax graph paper is generated which shows sound wood (medium graph line), rotted wood (1/4 height on graph), or void (zero on graph). The routine graph spikes (up and down), from termites eating only soft wood and leaving the rings, make subterranean termites easy to identify. Other damage such as dry wood termites, Carpenter ants and Formosan termites can also be detected with this new technology.

The Resistograph F150-S will not accidentally show a void that is not there. If a graph shows a zero drop, it most certainly indicates a void in the wood. Termite damage can be distinguished from other damage by the characteristic up and down of the graph showing the hollowed soft wood, followed by annual rings, and then a void again. The only way to further verify a positive graph readout is to probe nearby areas for a second or third verification of the same results. A second or third readout will all but eliminate any misreads by an untrained operator.

How the Resistograph F150-S helps to find Live Termites:

The Resistograph F150-S eliminates the need to drill numerous holes into studs to find possible live termites. Unlike surface bore scopes used to inspect the outside of a stud in a wall void, the Resistograph F150-S pinpoints the spot in the wood for direct observation with an inspection scope and a 1/4" drill hole.

Live termites can be observed in damaged timbers by drilling holes in the stud large enough for magnified inspection scopes. The waterproof wax graph paper will indicate the depth to find galleries, making it possible to find termites quickly and easily.

Methods:

Start with moisture meter readings throughout the structure to locate areas with higher than normal readings. Use this information and other inspection details such as past history, past treatments, swarm locations, and other clues to identify key areas. Use a Zircon Stud Finder to locate the center of the wood member. Probe with the Resistograph F150-S as close to the bottom of wood member as possible as well as one location at the top of the member. If more accuracy is necessary, one additional probe on each side of these first two holes will increase the probability of accuracy. Once a termite gallery is located with the Resistograph F150-S, note the depth of the damage on the graph paper.

High moisture levels and the presence of galleries should be sufficient evidence of active termites. However, for further proof of activity, drill a hole large enough for a small bore scope (available with less than 1/4" shafts). Necessary treatments can then be made through the same hole.

The most efficient method to use the Resistograph F150-S is to probe one center location at the base of the stud and one in the center at the top of the stud. Three probe locations (side-by-side) at the base of the stud and three at the top will be far more accurate.