如何選擇合適地暖地板
1、選多層還是選三層實木
因為地(di)熱環境下,地(di)板需要承(cheng)受一定的(de)熱量(liang),當空氣中(zhong)的(de)水(shui)分被(bei)吸收到(dao)木(mu)材中(zhong),木(mu)材就會產生膨脹。空氣比較干(gan)燥時,木(mu)材中(zhong)的(de)水(shui)分又跑(pao)到(dao)空氣中(zhong),使(shi)(shi)木(mu)材產生干(gan)縮,因此不能使(shi)(shi)用普通實木(mu)地(di)板,否(fou)則容易開裂縮縫(feng)。
挑選地暖地板主要看兩個問題,一是(shi)(shi)(shi)導(dao)熱性,二(er)是(shi)(shi)(shi)穩定(ding)性。三層(ceng)(ceng)(ceng)實木復合地板(ban)(ban)(ban)(ban)上(shang)下(xia)兩層(ceng)(ceng)(ceng)是(shi)(shi)(shi)同木種的(de)較(jiao)高(gao)密(mi)度(du)(du)木材,中(zhong)間是(shi)(shi)(shi)松木,因(yin)為中(zhong)間層(ceng)(ceng)(ceng)的(de)密(mi)度(du)(du)比上(shang)下(xia)兩層(ceng)(ceng)(ceng)的(de)密(mi)度(du)(du)小(xiao)很多(duo),密(mi)度(du)(du)低(di)的(de)物體在(zai)受(shou)(shou)潮后(hou)的(de)膨脹系數(shu)要大于(yu)高(gao)密(mi)度(du)(du)材料,這(zhe)就輕易(yi)造成三層(ceng)(ceng)(ceng)實木地板(ban)(ban)(ban)(ban)在(zai)受(shou)(shou)潮后(hou),中(zhong)間層(ceng)(ceng)(ceng)的(de)膨脹要大于(yu)上(shang)下(xia)兩層(ceng)(ceng)(ceng),造成地板(ban)(ban)(ban)(ban)開裂。多(duo)層(ceng)(ceng)(ceng)實木地板(ban)(ban)(ban)(ban)即使遇熱受(shou)(shou)潮,膨脹后(hou)也(ye)不易(yi)變形,缺(que)陷是(shi)(shi)(shi)厚度(du)(du)較(jiao)厚,同時密(mi)度(du)(du)也(ye)比較(jiao)低(di),在(zai)一定(ding)程(cheng)度(du)(du)上(shang)會影響導(dao)熱,但舒適度(du)(du)比強(qiang)化地板(ban)(ban)(ban)(ban)要好一些。從導(dao)熱和(he)穩定(ding)性來(lai)看,多(duo)層(ceng)(ceng)(ceng)實木地板(ban)(ban)(ban)(ban)相(xiang)對(dui)來(lai)說要好些。
2、甲醛釋放量
地暖(nuan)地板要求在長(chang)時(shi)間加熱的條件下,甲(jia)(jia)醛(quan)釋(shi)(shi)放(fang)量(liang)不會(hui)超標(biao)。消費者選(xuan)擇(ze)地熱地板時(shi),一定要盡可能(neng)選(xuan)擇(ze)甲(jia)(jia)醛(quan)含量(liang)低的地板,因為溫度越高,甲(jia)(jia)醛(quan)釋(shi)(shi)放(fang)量(liang)越多,在相對封(feng)閉的居室內,再加上室內其他物品造成的甲(jia)(jia)醛(quan)釋(shi)(shi)放(fang),室內甲(jia)(jia)醛(quan)有可能(neng)會(hui)超標(biao),對人體造成危害(hai)。
3、尺寸
地(di)暖地(di)板(ban)尺(chi)寸要通過地(di)板(ban)的(de)(de)基材(cai)密度(du)及內結合(he)強(qiang)度(du)來(lai)規(gui)劃(hua),內結合(he)強(qiang)度(du)越高(gao),說(shuo)明(ming)地(di)板(ban)承受溫度(du)變化(hua)的(de)(de)能力越好,不至于(yu)發生開裂(lie)等現象,只有基材(cai)為相對致(zhi)密的(de)(de)木(mu)材(cai)的(de)(de)地(di)板(ban),才(cai)能保證長期在高(gao)溫下(xia)不開裂(lie)、不變形。不懼潮濕(shi)環境即吸水(shui)厚度(du)膨(peng)脹(zhang)率(lv)。用于(yu)水(shui)熱地(di)面輻射采暖的(de)(de)地(di)板(ban)要求在高(gao)濕(shi)狀態(tai)下(xia)尺(chi)寸變化(hua)小(xiao),膨(peng)脹(zhang)率(lv)要小(xiao)于(yu)等于(yu)2.5%。一般來(lai)說(shuo),膨(peng)脹(zhang)率(lv)越小(xiao),地(di)板(ban)的(de)(de)防潮性(xing)能越好。
4、傳熱
市(shi)場上能(neng)提供熱傳導系數的品(pin)牌不多(duo),消費(fei)者在購買時(shi)要留(liu)意。一般(ban)系數高(gao)(gao)的產(chan)品(pin)在導熱方(fang)面性能(neng)更好(hao),不怕高(gao)(gao)溫。由于地(di)(di)熱地(di)(di)板(ban)要長時(shi)間(jian)承受(shou)高(gao)(gao)溫加熱,要求產(chan)品(pin)裝(zhuang)飾層(ceng)性能(neng)穩定,在長時(shi)間(jian)高(gao)(gao)溫的條件下也不會出現褪色、糙光(guang)的現象,復合地(di)(di)板(ban)更適合地(di)(di)熱采暖。國產(chan)地(di)(di)板(ban)質量達到國家GB/T1802-2000標(biao)準,都可(ke)以適應(ying)地(di)(di)熱采暖地(di)(di)板(ban)安裝(zhuang)的技術要求。
5、保暖性
地(di)暖的工(gong)作原理是(shi)通過(guo)低溫(wen)輻(fu)射傳遞熱(re)(re)(re)能,木材本(ben)身屬(shu)于(yu)不良導體。所以(yi),這就(jiu)要求(qiu)地(di)熱(re)(re)(re)地(di)板(ban)(ban)不能太厚(hou)(hou)。當厚(hou)(hou)度超過(guo)14mm時,輻(fu)射熱(re)(re)(re)能很(hen)難到達(da)地(di)板(ban)(ban)表層,熱(re)(re)(re)能利用率(lv)低,取暖效(xiao)果(guo)不理想(xiang),不經濟。地(di)板(ban)(ban)太薄(bo)儲(chu)熱(re)(re)(re)的效(xiao)果(guo)就(jiu)會很(hen)差,容易(yi)造(zao)成(cheng)室(shi)內溫(wen)差,很(hen)難達(da)到地(di)熱(re)(re)(re)取暖的效(xiao)果(guo)。一般來說(shuo),地(di)板(ban)(ban)的厚(hou)(hou)度越小,其(qi)熱(re)(re)(re)流量就(jiu)越大。地(di)板(ban)(ban)厚(hou)(hou)度在6.5-8.5毫米(mi)之(zhi)間能確保地(di)板(ban)(ban)具備(bei)良好(hao)的透(tou)氣性及散(san)熱(re)(re)(re)功能。
地暖地板常見選購誤區
1、地板面皮越厚越好
有些(xie)消費者在(zai)地(di)(di)暖地(di)(di)板(ban)的選購過(guo)程(cheng)中(zhong),盲目地(di)(di)追求多(duo)(duo)(duo)層(ceng)實(shi)木(mu)(mu)復(fu)合(he)地(di)(di)板(ban)面皮越(yue)(yue)(yue)厚越(yue)(yue)(yue)好,地(di)(di)板(ban)越(yue)(yue)(yue)寬越(yue)(yue)(yue)好,地(di)(di)板(ban)越(yue)(yue)(yue)長(chang)越(yue)(yue)(yue)好。事(shi)實(shi)上,多(duo)(duo)(duo)層(ceng)實(shi)木(mu)(mu)復(fu)合(he)地(di)(di)板(ban)面皮越(yue)(yue)(yue)厚,實(shi)木(mu)(mu)地(di)(di)板(ban)的特(te)征越(yue)(yue)(yue)明顯。在(zai)環境(jing)改變的過(guo)程(cheng)中(zhong),地(di)(di)板(ban)在(zai)干(gan)縮和濕脹時(shi)面皮產(chan)生(sheng)的應力就(jiu)(jiu)越(yue)(yue)(yue)大,地(di)(di)板(ban)變形(xing)和面皮開裂的機遇增加(jia)。多(duo)(duo)(duo)層(ceng)實(shi)木(mu)(mu)復(fu)合(he)地(di)(di)板(ban)越(yue)(yue)(yue)寬,干(gan)縮時(shi)產(chan)生(sheng)的縫隙就(jiu)(jiu)越(yue)(yue)(yue)大。同樣(yang),由于(yu)多(duo)(duo)(duo)層(ceng)實(shi)木(mu)(mu)復(fu)合(he)地(di)(di)板(ban)長(chang)寬方向(xiang)都(dou)膨脹與收縮,多(duo)(duo)(duo)層(ceng)實(shi)木(mu)(mu)復(fu)合(he)地(di)(di)板(ban)越(yue)(yue)(yue)長(chang),干(gan)縮時(shi)地(di)(di)板(ban)端頭產(chan)生(sheng)的縫隙就(jiu)(jiu)越(yue)(yue)(yue)大。
2、地板背面開槽越大越好
有人認為地熱地板背(bei)板開(kai)(kai)槽(cao)好,有(you)利于(yu)熱(re)(re)(re)(re)氣流(liu)動,甚至把地板背(bei)板做成(cheng)空心結構。事實上,熱(re)(re)(re)(re)量中在(zai)固體中的傳(chuan)導速(su)度(du)要比氣體的傳(chuan)導速(su)度(du)快,密度(du)越大熱(re)(re)(re)(re)傳(chuan)導速(su)度(du)越快,這也是我們提高(gao)地板基(ji)材密度(du)的原因之一。地表背(bei)面縱向開(kai)(kai)槽(cao),在(zai)地板背(bei)面的開(kai)(kai)槽(cao)處形成(cheng)空氣層,由于(yu)空氣的熱(re)(re)(re)(re)傳(chuan)導速(su)度(du)比木材熱(re)(re)(re)(re)傳(chuan)導速(su)度(du)低,反而降低了導熱(re)(re)(re)(re)效果。
3、防潮膜越透熱越好
有些(xie)消(xiao)費者防(fang)(fang)(fang)潮(chao)(chao)(chao)膜(mo)越透(tou)熱(re)越好,而有個別地(di)(di)(di)方的(de)(de)(de)(de)安裝(zhuang)公司(si)甚至把防(fang)(fang)(fang)潮(chao)(chao)(chao)膜(mo)剪(jian)成(cheng)許(xu)多小(xiao)口,目的(de)(de)(de)(de)是為了透(tou)氣,提高(gao)熱(re)傳(chuan)導效果(guo)(guo)。一般說(shuo)來,地(di)(di)(di)熱(re)工程(cheng)做成(cheng)后,地(di)(di)(di)面(mian)(mian)水(shui)泥中(zhong)(zhong)的(de)(de)(de)(de)含水(shui)率至少在17%以(yi)上,地(di)(di)(di)熱(re)取(qu)暖(nuan)(nuan)(nuan)過程(cheng),地(di)(di)(di)面(mian)(mian)的(de)(de)(de)(de)水(shui)分不(bu)(bu)斷向外(wai)散發,通過破損的(de)(de)(de)(de)防(fang)(fang)(fang)潮(chao)(chao)(chao)膜(mo)直接作用于(yu)地(di)(di)(di)板(ban)背面(mian)(mian),致(zhi)使地(di)(di)(di)板(ban)分層,鼓包和炸(zha)漆(qi)。另(ling)外(wai),在冬季供暖(nuan)(nuan)(nuan)后期(qi),由于(yu)地(di)(di)(di)面(mian)(mian)中(zhong)(zhong)的(de)(de)(de)(de)水(shui)分過分減(jian)(jian)少,地(di)(di)(di)面(mian)(mian)的(de)(de)(de)(de)熱(re)傳(chuan)導速度(du)減(jian)(jian)慢(man),導致(zhi)室溫過低。因此,我們不(bu)(bu)僅(jin)不(bu)(bu)要(yao)把防(fang)(fang)(fang)潮(chao)(chao)(chao)膜(mo)剪(jian)成(cheng)許(xu)多小(xiao)口,而且要(yao)將防(fang)(fang)(fang)潮(chao)(chao)(chao)膜(mo)用塑料膠(jiao)帶粘嚴,確保不(bu)(bu)透(tou)氣。這樣不(bu)(bu)僅(jin)可(ke)以(yi)避(bi)免地(di)(di)(di)面(mian)(mian)中(zhong)(zhong)的(de)(de)(de)(de)水(shui)分對地(di)(di)(di)板(ban)的(de)(de)(de)(de)危(wei)害,而且可(ke)以(yi)保持地(di)(di)(di)面(mian)(mian)中(zhong)(zhong)有足夠的(de)(de)(de)(de)水(shui)分,保證冬季供暖(nuan)(nuan)(nuan)后期(qi)熱(re)傳(chuan)導效果(guo)(guo)。