Because it is difficult to restore the original conditions of an architectural heritage once it is damaged, efforts are required to maintain and preserve the value and genuineness that the architectural heritage possesses. In particular, the retention of the original form in architectural heritage elements is a critical factor in determining the structure and exterior appearance of an architectural structure, and thus the level of authenticity that the elements retain is quite high. Replacement or repair of structural elements must therefore be minimized and conducted only under unavoidable situations, and recycling through restoration of elements is one of the most important research projects to maintain and inherit the values inherent in architectural heritage.
The means of reinforcement and restoration to reuse damaged wood elements include the traditional connection technique, filling, modeling adhesion, and hybrid technique.

Example of Application of the Hybrid Technique on Dori Elements: Utilizing Lag Bolts

Example of Application of the Hybrid Technique on Cheomcha Elements: Utilizing Lag Bolts

Example of Surface Restoration by Filling with Synthetic Resin

Angle rafter and outstretching rafter

Filling with
artificial resin
after removal of
corroded parts

Filling with artificial resin after removal of corroded parts

Daeryang

Restoration of elements with surface damage in Chwiunjeong of Changdeokgung Palace