Four years after the study started (two years after first refinish), the bevel siding was cleaned again and refinished (Group A-8 to A-14).
All finishes performed better on the saw-textured bevel siding.
A typical example of the plots (Figure 5) and the service life (Table 5) for this group of finishes shows that the performance is excellent on the saw-textured bevel siding.
However, the ratings were higher for finishes on the saw-textured bevel siding.
Several bevel siding and V-groove paneling pieces were rejected because of insect damage not observed until after remilling.
Because ferrous oxides are soluble and can be a source of bleed-through discoloration when used for exterior applications, an experiment was conducted on the remanufactured Douglas-fir bevel siding millwork to determine if bleed-through would be a problem in the reuse of this material.
This is especially true for the bevel siding, which would require repair or filling of nail holes prior to exterior installation.
Industry trade publications were reviewed to identify the price for thin 14-mm (9/16-in) flooring and paneling and 11-mm (7/16-in) bevel siding products.