The TWP Roof Treatment

TWP Treatments

• Moisture and sunlight pose the greatest threats to wood roof materials. To counter these effects, treatments for wood roof materials require ingredients designed to protect surface exposures and preserve wood fibers. The TWP roof treatment system uses a multilayered coating made up of resin-bonding materials and paraffin oils. Resin-bonding materials protect wood as it absorbs into the wood fiber materials that make up a roof’s surface. Paraffin oil ingredients create an ultra violet barrier designed to prevent hot temperatures from drying out roof surfaces. In effect, TWP roof treatments protect wood roofing systems from the damage caused by ongoing exposures to moisture and sunlight.

Surface Preparations

• As wood roof surfaces collect dirt and acquire organic growth over time, proper wood surface preparation allows for a full and even coating with the TWP treatment system. Power washing, or manual washing for older roof structures clear away dirt and organic debris. Areas where edges and seams appear, such as in between roof shingles or shingle ends require ample cleaning to allow TWP materials to saturate wood fiber surfaces. Surface absorption rates increase with repeated wetting and drying of wood surfaces, especially in the case of shake roof designs. This process helps to increase surface exposures by causing wood fibers to lift upwards.

Treatment Application

• TWP treatment application steps include testing an area of the roof to determine absorption capacity, applying coating materials in proper portions and necessary worker precautions. Sample testing uses a sprinkle of water to determine whether a roof surface will fully absorb the TWP treatment. Water beading indicates a non-absorbing surface and requires stripping of roof residues. Wood surfaces require 48 hours for drying before applying treatment coatings. Spray on applicators should apply TWP coating at a rate of one-half to 1-1/2 gallons in an even coat until wood is fully saturated. Anyone applying TWP should wear protective gear, such as goggles, gloves and a respirator device.

Curing Process

• The curing process has to do with the time it takes for a TWP treatment to penetrate wood surfaces and provide full UV and moisture protection. The paraffin oil materials act as a gelling agent that holds the coating’s other ingredients in place. Oil curing can take anywhere from three days to three months to fully absorb into roofing surfaces depending on climate conditions. In the process, the paraffin oil enables resins and UV protectorants to seep into worn areas and penetrate wood cells. As treatment coatings cure, resin-bonding agents create a seal around surface openings and seams, which prevents water and moisture from seeping into wood fibers. Depending on climate conditions, the entire curing process can take anywhere from 30 days to 6 months. High temperatures and full sunlight will cure TWP coatings at the fastest rate. Once coatings have set in, TWP coatings can provide moisture and UV protection for up to 7 years.