How Logs Be­come Walls

Log Home Living - - PLAN -

The logs in­ter­sect at the cor­ners but rest se­curely on one an­other the en­tire length of the wall. There are three ba­sic ways to de­sign full-length support sys­tems:

1. FLAT-ON-FLAT hor­i­zon­tal in­ter­face sur­faces are per­haps the sim­plest. They usu­ally use a but­tand-pass cor­ner de­sign, dry or well- sea­soned wood that isn’t prone to twist or warp, a good sealant and a nail­ing sched­ule. The logs pro­vide a broad base for support, but there’s no sec­ond line of de­fense should the logs twist or warp and the sealant fail. 2. SWEDISH COPE is a con­caveover-round de­sign where the top of the lower log is left nat­u­rally round or milled round, and the bot­tom sur­face is cut away to a con­cave or cres­cent shape. The two out­side edges of the con­cave sur­face rest on the round top of the lower log, pro­vid­ing two seal­ing points and a wide support base. 3. TONGUE-AND-GROOVE sur­faces ma­chin­ery,into sin­gle, the dou­ble hor­i­zon­tal­re­quire whichor triple pre­ci­sion­cut sur­face length­wise tongue-and-millingto form a grooveare gen­er­ally con­fig­u­ra­tion.on the top The where tongues they won’t catch and re­tain wa­ter, and the grooves are milled into the bot­tom. When the logs are stacked, the tongues and grooves fit to­gether to cre­ate a tight seal, and the in­side and out­side edges of the sur­faces pro­vide a wide base for struc­tural sta­bil­ity.

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