I ka hooilo, pāhawewe lā, he mama i ka puka nō ia i loko o ka lumi no ka paio hahana maoli nō, akā, i loko o far- welaʻula wela ikehu ma i loko o ka wela poe kuai, nā mīkini home a me kanaka kino hiki ole hou mai i ka lumi, noonoo wale, ka pono ma ka lumi Via haʻahaʻa-e aniani emi i ka ikehu hokii o ka wela poe kuai. Kona kiʻekiʻe malamalama transmittance mea pono no keʻano o ke kiʻekiʻe-permeability manao hale, ana i ka hale aniani moakaka, a highlighting maoli kau iho.

Nā pono o ka hookahi kala kiʻekiʻe permeability haʻahaʻa-e aniani:

Hiki malamalama transmittance - kūpono i loko o maoli daylighting.

Poe ikehu transmittance -allows loa Map e hele ma, HI ≧ 0.5

High hiki welaʻula reflectance-haʻahaʻa u make-waiwai, hoemiia thermal hoolilo ma muli o ke ana wela koena unuhi.