A cikin harshe mai sauƙi, ɗakin rufin rufin shine ƙwanƙwasa inda jiragen sama biyu masu adawa sun hadu. Samun ƙarin fasaha, Ƙungiyar 'Yan kasuwa na Roofing Contracting defines ridge a matsayin "mafi mahimmanci a kan rufin, wakiltar wani layin da ke kan iyaka inda wurare biyu na kan iyakoki ke gudana, suna tafiyar da tsawon yankin." Saboda haka ridge yana da saman saman rufin, amma ridge ma yana nufin jirgi ko katako wanda aka yi amfani da shi wajen gina ginin.
Rukunai da Rukunin Ridge
A cikin kayan gargajiya na al'ada, wanda ake kira "sandar katako," wani rufin rufin rufi yana kunshe da nau'i-nau'i na shinge masu haɗuwa waɗanda suke haɗuwa a ƙwanƙolinsu a ɗakin kwalliya ko igiya. An yanke ƙarshen kowane rafter a wani kusurwa don ya hadu da flush tare da ɗaya gefen gefen ɗakin kwalliya, kuma yunkuri yana sandwiched tsakanin rafters.
Ana sanya rafters a gefe ko an haɗa su tare da masu haɗin gine-gine. Ta wannan hanyar, ɗakunan kwalliya suna samar da haɗin gine-gine don rafters, yana kara da kwanciyar hankali (gefe-gefe), kuma yana samar da kashin baya ga rufin rufin. Ƙananan ƙafa na kowane ɓangare na ɗakunan adawa an haɗa su tare da jirgin mai kwance wanda ake kira joist; tare, masu haɗuwa sukan zama siffofi na rufi na bene na bene (har ma da bene mai zurfi). Rumbuna, ridge, da jigon hanyoyi suna samar da taro mai mahimmanci wanda ke da ƙarfin gine-ginen wuri tare da wuri mai bude a tsakiyar, yana samar da sararin samaniya.
Kayan gine-gine an yi su ne daga 1x8 ko 2x8 ko mafi girma katako. Ana amfani da sharuɗɗan jirgin ruwa da kwatar gizon yin amfani da shi a cikin tsararren tsari.
Lampunan Rumbun Tsuntsu
Tsarin katako yana da hanyar gargajiya na yin amfani da katako mai nauyi fiye da katako na katako. Tashin katako na katako yana da rafters da katako, kamar yadda itace ya shimfiɗa, amma ridge babban itace ne wanda ke zama a saman ko wani lokaci ya shiga cikin kwasfa a cikin katako.
Tare da wannan zane, igiya mai yaduwa yana ɗauke da nauyin (nauyi) fiye da ɗakin kwalliya a kan dutsen da aka shimfiɗa. Ridges a cikin katako na katako suna da yawa ana kiransa sutsiya maimakon ginshiƙai.
Wurin Hijira
Mafi gidan gargajiya mafi kyau shine rufin gini, wanda yake da jiragen saman rufin biyu da kuma bango mai maƙalar hagu mai nau'in triangle a kowane gefe, wanda aka sani da bangon garu. Bambanci a kan wannan ita ce rufin rufin, wanda ba shi da gadi. Maimakon haka, yana da wani ƙarin rufin saman a kowane gefen tsakiya, kwalliya kwance. Bugu da ƙari a kan tudu mai kwance, rufin rufi yana da tuddai ko tuddai inda jiragen saman saman ke haɗuwa. Wannan rukuni an halicce shi ta hanyar abin da ake kira rafter hip. Yana aiki ne kawai kamar gwaninta amma an saita shi a wata kusurwa.
Truss Roofs
Yawancin gidaje na zamani suna da ginshiƙai da aka yi tare da ginshiƙan da aka riga aka kafa maimakon maimakon kafa. Kwararrun itace ginshiƙan itace wanda aka gina a ma'aikata kamar cikakkiyar sassan da aka aika zuwa wurin aiki don shigarwa. An kafa matsi a kan ganuwar gidan kuma an haɗa su tare da allon da ake kira purlins. Saboda kowane ɓangaren yana da cikakkiyar siffar, ƙananan ba sa amfani da jirgi na kowa, da kuma tsabta (tare da rufin rufin) suna ba da goyon baya a kaikaice.
Da zarar an saka katako da yin rufi, wani rufin rufin yana kama da rufin katako.