ʻO nā mea lāʻau kedera ʻulaʻula paʻa ʻaʻole maʻalahi ka hoʻololi ʻana, ʻo ia kekahi o ka palaho kūlohelohe kū kūʻē o ka corrosion, no ka ʻulaʻula lāʻau lāʻau kedera me ka ʻole o ka corrosion a me ka mālama koʻikoʻi.
Hoʻohana nui ʻia nā lāʻau kedera pōʻai i ka hale, ma hope o ka radiation ultraviolet lōʻihi a me ka makani a me ka ua, ʻo ka lāʻau kedera ʻulaʻula e like me ka mea maka no ka hana ʻana i nā shingles ka mea kūpono loa.
ʻO ka hapalua lāʻau kedera shingles he lōʻihi loa ia, e lilo ia i mea pono no ka hale.He 10 mau makahiki ka lōʻihi o Cedar ma mua o nā mea hale maʻamau, e like me ka asphalt.