通(tong)(tong)(tong)風(feng)天窗(chuang)泛指具有通(tong)(tong)(tong)風(feng)排氣(qi)的窗(chuang)戶，本文(wen)所介紹的通(tong)(tong)(tong)風(feng)天窗(chuang)是工業用途的廠房屋頂通(tong)(tong)(tong)風(feng)天窗(chuang)。通(tong)(tong)(tong)風(feng)天窗(chuang)也稱作屋頂通(tong)(tong)(tong)風(feng)器、自然通(tong)(tong)(tong)風(feng)器、通(tong)(tong)(tong)風(feng)氣(qi)樓(lou)，是工業建筑上常用大(da)型集通(tong)(tong)(tong)風(feng)、采光(guang)、排煙為一體的通(tong)(tong)(tong)風(feng)設備，在幫(bang)助(zhu)建筑改(gai)善(shan)室內空氣(qi)環境方面(mian)起(qi)著重要作用。    

通風(feng)天(tian)(tian)窗按照通風(feng)方式(shi)(shi)(shi)分(fen)為自然(ran)開敞(chang)式(shi)(shi)(shi)和(he)電動啟(qi)(qi)閉式(shi)(shi)(shi)兩種(zhong)。一、自然(ran)開敞(chang)式(shi)(shi)(shi)結構通風(feng)天(tian)(tian)窗適用(yong)(yong)(yong)于沒有(you)(you)保(bao)溫和(he)溫度控制要(yao)求的(de)(de)車(che)間廠(chang)房，室(shi)(shi)內外空氣(qi)(qi)(qi)始(shi)終處(chu)于流動狀(zhuang)態，煙塵、灰塵、熱(re)氣(qi)(qi)(qi)等隨(sui)時(shi)隨(sui)地的(de)(de)排(pai)出(chu)室(shi)(shi)外，室(shi)(shi)內空氣(qi)(qi)(qi)進行轉(zhuan)換(huan)(huan)更(geng)新(xin)。這(zhe)種(zhong)通風(feng)天(tian)(tian)窗在(zai)(zai)(zai)(zai)成本價格方面具有(you)(you)優勢。一般在(zai)(zai)(zai)(zai)室(shi)(shi)內有(you)(you)大型熱(re)源和(he)煙塵較大的(de)(de)廠(chang)房采用(yong)(yong)(yong)這(zhe)種(zhong)天(tian)(tian)窗。二、電動啟(qi)(qi)閉式(shi)(shi)(shi)通風(feng)天(tian)(tian)窗是在(zai)(zai)(zai)(zai)自然(ran)開敞(chang)式(shi)(shi)(shi)通風(feng)天(tian)(tian)窗的(de)(de)基礎(chu)上增(zeng)設了電動系統和(he)啟(qi)(qi)閉筏(fa)板(ban)(ban)，在(zai)(zai)(zai)(zai)需(xu)要(yao)通風(feng)換(huan)(huan)氣(qi)(qi)(qi)和(he)排(pai)煙除塵的(de)(de)時(shi)候(hou)打(da)開電動啟(qi)(qi)閉筏(fa)板(ban)(ban)，在(zai)(zai)(zai)(zai)不需(xu)要(yao)通風(feng)排(pai)煙時(shi)，電動筏(fa)板(ban)(ban)處(chu)于關閉狀(zhuang)態，阻止室(shi)(shi)內外空氣(qi)(qi)(qi)對流。有(you)(you)保(bao)溫需(xu)求的(de)(de)可定制保(bao)溫型筏(fa)板(ban)(ban)。這(zhe)種(zhong)類(lei)型的(de)(de)通風(feng)天(tian)(tian)窗適用(yong)(yong)(yong)于平時(shi)偶爾通風(feng)換(huan)(huan)氣(qi)(qi)(qi)和(he)排(pai)煙要(yao)求。優點是根(gen)據車(che)間需(xu)要(yao)控制性(xing)好。通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)在(zai)屋(wu)面的(de)(de)(de)布(bu)局(ju)不(bu)外(wai)乎兩種，那就是屋(wu)脊(ji)（主脊(ji)）式(shi)(shi)(shi)和順(shun)(shun)坡式(shi)(shi)(shi)，即橫(heng)向(xiang)天(tian)窗(chuang)(chuang)(chuang)和縱向(xiang)天(tian)窗(chuang)(chuang)(chuang)。一(yi)棟建(jian)(jian)(jian)筑(zhu)(zhu)選用(yong)何種型(xing)(xing)號(hao)規格的(de)(de)(de)通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)，是根(gen)據(ju)建(jian)(jian)(jian)筑(zhu)(zhu)使用(yong)環境性質和建(jian)(jian)(jian)筑(zhu)(zhu)面積等(deng)因素綜合來(lai)考(kao)量的(de)(de)(de)，并由(you)設計(ji)單位根(gen)據(ju)通(tong)風(feng)量和消防(fang)要(yao)求最(zui)終確(que)定通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)的(de)(de)(de)規格型(xing)(xing)號(hao)。屋(wu)脊(ji)式(shi)(shi)(shi)通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)坐落在(zai)屋(wu)頂(ding)的(de)(de)(de)屋(wu)脊(ji)處(chu)，按照氣(qi)流的(de)(de)(de)運動(dong)原理，此位置(zhi)的(de)(de)(de)通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)效果最(zui)佳，對于室內的(de)(de)(de)熱氣(qi)、煙塵、灰(hui)塵等(deng)能(neng)及時有效的(de)(de)(de)排出(chu)，適用(yong)于大型(xing)(xing)結(jie)構建(jian)(jian)(jian)筑(zhu)(zhu)。順(shun)(shun)坡式(shi)(shi)(shi)通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)適用(yong)于廠房室內熱氣(qi)、煙塵不(bu)大，且廠房建(jian)(jian)(jian)筑(zhu)(zhu)較小或多連跨的(de)(de)(de)廠房結(jie)構。也可以(yi)根(gen)據(ju)實際(ji)需(xu)要(yao)，主脊(ji)式(shi)(shi)(shi)和順(shun)(shun)坡式(shi)(shi)(shi)通(tong)風(feng)天(tian)窗(chuang)(chuang)(chuang)交叉使用(yong)。