1.Thicken mhete rusvingo kuita yakakwirira compressive simba uye refu basa upenyu.
2.Ine pore yakawanda, iyo inovandudza kurima kwebhakitiriya inobatsira.
3.Large nzvimbo yepamusoro, mvura yakanaka inopera, kuwedzera okisijeni mukati memvura uye kunatsiridza kunaka kwemvura.
4.Good air circulation, mvura shoma shoma inoyerera.