(a) The lien provided for saw logs and shingle bolts is not released or lost by the manufacture of the saw logs or shingle bolts into lumber or shingles, and the lien may be enforced against the lumber and shingles manufactured from them. (b) A lien may not be acquired upon or enforced against lumber or logs after the lumber or logs are used in the construction of a building or structure, or upon spars, piles, or other timber mentioned in AS 34.35.230 - 34.35.315 after they are put to the use for which they are intended.
Alaska Legal Code