ʻOi aku ke kaumaha o ke kila ma mua o nā mea kūkulu hale e like me ke kaʻa, akā ʻoi aku ka kiʻekiʻe o kona ikaika. No ka laʻana, ma lalo o nā kūlana haʻawe like, ʻo ke kaumaha o ka puʻu hale kila he 1/4-1/3 wale nō o ka lōʻihi like o ka puʻu o ka hale i hoʻoikaika ʻia, a inā ʻoi aku ka maʻalahi o ka puʻu hale kila lahilahi, 1/1 wale nō. 10. No laila, hiki i nā hale kila ke pale aku i nā ukana ʻoi aku ka nui a me ka lōʻihi o nā span nui aʻe ma mua o nā hale paʻa i hoʻoikaika ʻia.Maikaʻi ka hopena hoʻopakele ikehu. Hana ʻia nā pā i ke kila māmā, mālama i ka ikehu a hoʻohālikelike ʻia i ke kila C-like, kila square, a me nā panela sandwich. Loaʻa iā lākou ka hana insulation thermal maikaʻi a me ke kū'ē ōlaʻi maikaʻi.