Quick Answer
Cordwood homes require routine maintenance to ensure their longevity, and common repairs include addressing gaps in mortar, sealing gaps between logs, and inspecting for signs of insect infestation.
Mortar Mix and Log Gaps
Cordwood homes often experience issues with mortar mix over time due to exposure to the elements. A well-maintained cordwood home requires regular inspections to identify gaps in the mortar. A simple solution to address this issue is to mix a new batch of mortar using a ratio of 1 part cement to 3 parts perlite for improved durability and resistance to water absorption. To apply the new mortar, use a pointing trowel to fill gaps, taking care not to dislodge surrounding mortar.
Insulation and Log End Walls
Proper insulation is essential for maintaining a stable interior climate in cordwood homes. Insulation gaps can occur around log end walls due to settling foundations or logs shifting over time. To address this, drill holes into the log end walls, 6-8 inches deep and 1/4 inch in diameter, and insert fiberglass batts or cellulose insulation. Secure the insulation with a small amount of expanding foam to prevent it from shifting.
Insect Infestation and Waterproofing
Cordwood homes are susceptible to insect infestation, particularly carpenter ants and termites, which can compromise the structural integrity of the home. Regular inspections for signs of insect activity are essential. To prevent future infestations, apply a waterproofing sealant, such as a borate-based product, to the log ends and surrounding mortar. This will help prevent moisture from accumulating and creating an environment conducive to insect growth.
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