Kubalwa kwelinani letikhala tesisekelo
X - Bubanti bendzawo lephansi
Y - Budze bendzawo lephansi
F - Sectional ukuma vent for isisekelo. Licala noma liyindingilizi.
D - Ububanti bemoya.
A - Ububanzi be-vent leyindingilizi.
B - Kuphakama kwemnyango wemoya loyindingilizi.
E - I ratio indzawo lilonkhe lebantfu labange vents kuya indzawo basement.
Emakhono eluhlelo.
Kubalwa kwenani letikhala tekukhipha umoya wesisekelo.
Ema Vents tivulekile letisendzaweni lengetulu kwemhlabatsi yesisekelo letifakwa kwentela kufaka umoya ngaphansi kwemhlabatsi.
Loku kuvikela kugcwala kwegesi ye radon kanye nekuvela kwesikhunta etinhlakeni tekwakha.
Tikhala noma tikhala tikhona etindzaweni letiphambene te basement kwentela kucinisekisa kutsi kukhona umoya lokahle.
Kunconywa kutsi utfole tindzawo tekukhipha umoya letiphakeme kakhulu kusuka emhlabatsini.
Indzawo lephelele yetindzawo tekukhipha umoya kumele ibe ngu 1/400 wendzawo lephansi.
Kuletindzawo letine radon lesetulu, lesilinganiso kumele sibe ngu 1/100.