RF vs. Conventional Heating
While RF is able to heat a timber evenly regardless of size, conventional drying methods are not. They rely on heating from the outside in, which prevents even, and thorough drying in large timbers.
For large timbers conventional drying will create a dry shell around a moist core, which may temporarily mask the effects of using green timbers, but only delays the likely defects related to moisture equalization.
RF drying allows large timbers to be dried to 15% or less to the core, minimizing drying defects such as twisting, cupping, checking, shrinkage and movement after installation. The process also set's the pitch in each piece, eliminating messy pitch leaks.
Continue to the next slide.
Tru-Dry timbers still in RFV kiln with compression plate down.