如何選擇合適地暖地板
1、選多層還是選三層實木
因為(wei)地熱(re)環境(jing)下,地板需(xu)要承受一定的熱(re)量,當空(kong)氣中的水分(fen)被吸收到木(mu)材中,木(mu)材就會產(chan)(chan)生膨脹。空(kong)氣比(bi)較干燥時,木(mu)材中的水分(fen)又跑到空(kong)氣中,使(shi)木(mu)材產(chan)(chan)生干縮(suo),因此不能使(shi)用普(pu)通實木(mu)地板,否(fou)則容易開裂縮(suo)縫。
挑選地暖地板主要(yao)看兩個問題,一是導熱(re)性(xing),二(er)是穩(wen)定性(xing)。三層(ceng)實(shi)木(mu)(mu)復合地板(ban)(ban)上(shang)下(xia)兩層(ceng)是同木(mu)(mu)種的(de)(de)較(jiao)高密度(du)木(mu)(mu)材,中(zhong)間(jian)是松木(mu)(mu),因為中(zhong)間(jian)層(ceng)的(de)(de)密度(du)比(bi)上(shang)下(xia)兩層(ceng)的(de)(de)密度(du)小很多,密度(du)低的(de)(de)物(wu)體在受潮后的(de)(de)膨脹(zhang)系(xi)數要(yao)大于高密度(du)材料,這就輕易造(zao)成(cheng)三層(ceng)實(shi)木(mu)(mu)地板(ban)(ban)在受潮后,中(zhong)間(jian)層(ceng)的(de)(de)膨脹(zhang)要(yao)大于上(shang)下(xia)兩層(ceng),造(zao)成(cheng)地板(ban)(ban)開裂(lie)。多層(ceng)實(shi)木(mu)(mu)地板(ban)(ban)即使遇熱(re)受潮,膨脹(zhang)后也不易變形,缺陷是厚度(du)較(jiao)厚,同時密度(du)也比(bi)較(jiao)低,在一定程度(du)上(shang)會影響導熱(re),但舒(shu)適度(du)比(bi)強化(hua)地板(ban)(ban)要(yao)好(hao)一些。從導熱(re)和穩(wen)定性(xing)來看,多層(ceng)實(shi)木(mu)(mu)地板(ban)(ban)相(xiang)對(dui)來說要(yao)好(hao)些。
2、甲醛釋放量
地(di)(di)暖地(di)(di)板(ban)要求在長時(shi)間加熱的(de)條件(jian)下,甲(jia)(jia)醛(quan)釋(shi)放量不會(hui)超標。消費者選(xuan)擇(ze)地(di)(di)熱地(di)(di)板(ban)時(shi),一定要盡(jin)可能選(xuan)擇(ze)甲(jia)(jia)醛(quan)含(han)量低的(de)地(di)(di)板(ban),因為溫度(du)越高,甲(jia)(jia)醛(quan)釋(shi)放量越多,在相(xiang)對(dui)封閉的(de)居室(shi)內,再加上室(shi)內其他物品(pin)造成的(de)甲(jia)(jia)醛(quan)釋(shi)放,室(shi)內甲(jia)(jia)醛(quan)有可能會(hui)超標,對(dui)人體造成危害。
3、尺寸
地(di)(di)(di)暖(nuan)地(di)(di)(di)板(ban)(ban)尺寸要(yao)(yao)通過地(di)(di)(di)板(ban)(ban)的(de)(de)(de)基(ji)材密度(du)及內結(jie)合強(qiang)度(du)來規劃,內結(jie)合強(qiang)度(du)越高(gao),說明地(di)(di)(di)板(ban)(ban)承(cheng)受溫度(du)變(bian)化(hua)(hua)的(de)(de)(de)能力(li)越好,不(bu)至于發生開裂(lie)等現象,只有基(ji)材為相對致密的(de)(de)(de)木材的(de)(de)(de)地(di)(di)(di)板(ban)(ban),才能保證長期(qi)在高(gao)溫下不(bu)開裂(lie)、不(bu)變(bian)形。不(bu)懼潮(chao)濕環(huan)境即(ji)吸水厚度(du)膨脹率(lv)。用于水熱地(di)(di)(di)面輻射(she)采(cai)暖(nuan)的(de)(de)(de)地(di)(di)(di)板(ban)(ban)要(yao)(yao)求在高(gao)濕狀態(tai)下尺寸變(bian)化(hua)(hua)小(xiao),膨脹率(lv)要(yao)(yao)小(xiao)于等于2.5%。一般來說,膨脹率(lv)越小(xiao),地(di)(di)(di)板(ban)(ban)的(de)(de)(de)防潮(chao)性能越好。
4、傳熱
市場上能(neng)提(ti)供(gong)熱傳導系數(shu)的(de)品牌不(bu)多(duo),消費者在購買(mai)時要(yao)留意。一般(ban)系數(shu)高的(de)產(chan)品在導熱方(fang)面性能(neng)更好,不(bu)怕高溫。由(you)于地(di)(di)(di)熱地(di)(di)(di)板(ban)(ban)要(yao)長時間承受高溫加熱,要(yao)求產(chan)品裝飾層性能(neng)穩定,在長時間高溫的(de)條(tiao)件下也不(bu)會出現褪色、糙(cao)光的(de)現象(xiang),復合(he)地(di)(di)(di)板(ban)(ban)更適(shi)合(he)地(di)(di)(di)熱采暖(nuan)。國產(chan)地(di)(di)(di)板(ban)(ban)質量達到國家(jia)GB/T1802-2000標準(zhun),都可以適(shi)應地(di)(di)(di)熱采暖(nuan)地(di)(di)(di)板(ban)(ban)安裝的(de)技術要(yao)求。
5、保暖性
地暖(nuan)(nuan)的(de)工作原理是通過低(di)溫輻(fu)射(she)傳遞(di)熱(re)能,木材本身(shen)屬(shu)于不(bu)(bu)良(liang)導(dao)體。所(suo)以(yi),這就要求地熱(re)地板(ban)不(bu)(bu)能太(tai)厚。當厚度超過14mm時,輻(fu)射(she)熱(re)能很(hen)(hen)難到達地板(ban)表層,熱(re)能利(li)用率低(di),取暖(nuan)(nuan)效果(guo)(guo)不(bu)(bu)理想,不(bu)(bu)經濟。地板(ban)太(tai)薄(bo)儲熱(re)的(de)效果(guo)(guo)就會很(hen)(hen)差,容易造成室內溫差,很(hen)(hen)難達到地熱(re)取暖(nuan)(nuan)的(de)效果(guo)(guo)。一般來說,地板(ban)的(de)厚度越(yue)小,其熱(re)流量就越(yue)大。地板(ban)厚度在6.5-8.5毫(hao)米(mi)之間能確保(bao)地板(ban)具備良(liang)好(hao)的(de)透(tou)氣性及(ji)散熱(re)功能。
地暖地板常見選購誤區
1、地板面皮越厚越好
有些消費者在(zai)地(di)(di)(di)(di)暖(nuan)地(di)(di)(di)(di)板(ban)(ban)(ban)的(de)(de)選購過程中,盲目(mu)地(di)(di)(di)(di)追求多(duo)(duo)層實(shi)(shi)(shi)(shi)(shi)木復(fu)合地(di)(di)(di)(di)板(ban)(ban)(ban)面(mian)皮(pi)(pi)越(yue)(yue)(yue)(yue)(yue)厚(hou)越(yue)(yue)(yue)(yue)(yue)好(hao),地(di)(di)(di)(di)板(ban)(ban)(ban)越(yue)(yue)(yue)(yue)(yue)寬越(yue)(yue)(yue)(yue)(yue)好(hao),地(di)(di)(di)(di)板(ban)(ban)(ban)越(yue)(yue)(yue)(yue)(yue)長越(yue)(yue)(yue)(yue)(yue)好(hao)。事實(shi)(shi)(shi)(shi)(shi)上,多(duo)(duo)層實(shi)(shi)(shi)(shi)(shi)木復(fu)合地(di)(di)(di)(di)板(ban)(ban)(ban)面(mian)皮(pi)(pi)越(yue)(yue)(yue)(yue)(yue)厚(hou),實(shi)(shi)(shi)(shi)(shi)木地(di)(di)(di)(di)板(ban)(ban)(ban)的(de)(de)特征越(yue)(yue)(yue)(yue)(yue)明顯。在(zai)環境改變的(de)(de)過程中,地(di)(di)(di)(di)板(ban)(ban)(ban)在(zai)干(gan)縮和濕脹時面(mian)皮(pi)(pi)產(chan)生的(de)(de)應(ying)力就(jiu)越(yue)(yue)(yue)(yue)(yue)大(da),地(di)(di)(di)(di)板(ban)(ban)(ban)變形(xing)和面(mian)皮(pi)(pi)開裂的(de)(de)機遇增(zeng)加。多(duo)(duo)層實(shi)(shi)(shi)(shi)(shi)木復(fu)合地(di)(di)(di)(di)板(ban)(ban)(ban)越(yue)(yue)(yue)(yue)(yue)寬,干(gan)縮時產(chan)生的(de)(de)縫隙就(jiu)越(yue)(yue)(yue)(yue)(yue)大(da)。同樣,由于多(duo)(duo)層實(shi)(shi)(shi)(shi)(shi)木復(fu)合地(di)(di)(di)(di)板(ban)(ban)(ban)長寬方向都膨(peng)脹與(yu)收縮,多(duo)(duo)層實(shi)(shi)(shi)(shi)(shi)木復(fu)合地(di)(di)(di)(di)板(ban)(ban)(ban)越(yue)(yue)(yue)(yue)(yue)長,干(gan)縮時地(di)(di)(di)(di)板(ban)(ban)(ban)端(duan)頭(tou)產(chan)生的(de)(de)縫隙就(jiu)越(yue)(yue)(yue)(yue)(yue)大(da)。
2、地板背面開槽越大越好
有人認為地熱地板背(bei)板(ban)(ban)(ban)(ban)開槽好,有利于熱氣(qi)(qi)流動,甚至把地板(ban)(ban)(ban)(ban)背(bei)板(ban)(ban)(ban)(ban)做成空心(xin)結構。事(shi)實(shi)上,熱量中(zhong)在固體中(zhong)的(de)(de)(de)傳導(dao)(dao)(dao)速(su)度(du)要(yao)比氣(qi)(qi)體的(de)(de)(de)傳導(dao)(dao)(dao)速(su)度(du)快(kuai),密度(du)越(yue)大熱傳導(dao)(dao)(dao)速(su)度(du)越(yue)快(kuai),這也是(shi)我(wo)們提(ti)高(gao)地板(ban)(ban)(ban)(ban)基材(cai)密度(du)的(de)(de)(de)原因之一。地表背(bei)面(mian)縱向開槽,在地板(ban)(ban)(ban)(ban)背(bei)面(mian)的(de)(de)(de)開槽處形成空氣(qi)(qi)層,由于空氣(qi)(qi)的(de)(de)(de)熱傳導(dao)(dao)(dao)速(su)度(du)比木材(cai)熱傳導(dao)(dao)(dao)速(su)度(du)低,反而降低了導(dao)(dao)(dao)熱效果。
3、防潮膜越透熱越好
有些(xie)消費者(zhe)防潮(chao)膜越透(tou)(tou)(tou)熱(re)越好(hao),而有個別(bie)地(di)(di)方的(de)安裝公司甚(shen)至把防潮(chao)膜剪成(cheng)許多小(xiao)口(kou),目的(de)是為了透(tou)(tou)(tou)氣,提高熱(re)傳導效果。一般說來(lai),地(di)(di)熱(re)工程做成(cheng)后,地(di)(di)面水(shui)泥中(zhong)的(de)含水(shui)率至少(shao)在17%以上,地(di)(di)熱(re)取暖(nuan)過(guo)程,地(di)(di)面的(de)水(shui)分(fen)(fen)不斷向外散發,通過(guo)破損(sun)的(de)防潮(chao)膜直接(jie)作(zuo)用于地(di)(di)板(ban)背面,致(zhi)使(shi)地(di)(di)板(ban)分(fen)(fen)層(ceng),鼓包和炸(zha)漆。另外,在冬(dong)季供(gong)暖(nuan)后期,由于地(di)(di)面中(zhong)的(de)水(shui)分(fen)(fen)過(guo)分(fen)(fen)減(jian)少(shao),地(di)(di)面的(de)熱(re)傳導速(su)度減(jian)慢,導致(zhi)室溫過(guo)低。因此,我們不僅(jin)不要把防潮(chao)膜剪成(cheng)許多小(xiao)口(kou),而且(qie)要將防潮(chao)膜用塑料膠帶(dai)粘嚴,確(que)保(bao)不透(tou)(tou)(tou)氣。這(zhe)樣不僅(jin)可以避免(mian)地(di)(di)面中(zhong)的(de)水(shui)分(fen)(fen)對地(di)(di)板(ban)的(de)危害(hai),而且(qie)可以保(bao)持(chi)地(di)(di)面中(zhong)有足夠的(de)水(shui)分(fen)(fen),保(bao)證冬(dong)季供(gong)暖(nuan)后期熱(re)傳導效果。