PROFESSIONAL MOISTURE INSPECTION
A non-destructive Moisture Meter is used to determine moisture content in fiberglass lamination and wood.
We use a Sovereign Quantum Marine Moisture Meter which is the most advanced meter on the market and which is specifically designed for the taking of moisture readings on FRP laminates. The meter gives near surface readings and deeper readings inside the laminate and an experienced operator can use this information to determine the water content and areas for concern.
A Moisture testing (Inspection) is done when water ingress is suspected on a FRP/GRP hulls and it is believed that osmosis has occurred. This is covered more fully under hull surveys.
FRP decks will often have high water content around deck fittings and around crazing areas such as close to the mast step. If the deck has an inner sandwich core this can rot and will reduce the strength of the deck.
Teak decks can also be a cause for water ingress and hidden problems as they can be laid with a ply wood base which can rot. Also if the teak is screwed to the deck the screws can allow water to enter the deck core.
Rudders are often made from FRP with a metal frame embedded into the mold with the rudder shaft protruding out one end. These are renowned for water ingress which over time will corrode the internal metal frame