palagay ka po ng ceiling foam insulation..ung ganito https://pages.lazada.com.ph/wow/i/ph/marketing/mkt_lp?trigger_item=276470130&campaign_id=0&venture=ph&sku_id=411644437&wh_skucount=1&s_kwcid=AL!3151!3!289265192076!!!u!!&exlaz=d_1:mm_150050845_51350205_2010350205::12:1523151077!59807806993!!!pla-484046332244!m!484046332244!411644437!129609965&gclid=EAIaIQobChMIrf-PxeOt4QIVj4qPCh2NhQKREAQYAiABEgJJGfD_BwE kung wala naman maayos na ventilation, pwede exhaust fan, otherwise aircon talaga ung last option.