多層實木復合地板鋪裝后為什么會產生較大縫隙？

多層實(shi)木復合地(di)(di)板(ban)在眾(zhong)多的(de)地(di)(di)板(ban)中(zhong)變(bian)形(xing)量(liang)是最小的(de),變(bian)形(xing)量(liang)僅為實(shi)木地(di)(di)板(ban)弦切(qie)材最大(da)變(bian)形(xing)量(liang)的(de)1/20左(zuo)(zuo)右，鋪裝(zhuang)(zhuang)后(hou)不應該產生較大(da)的(de)縫(feng)隙。一般情況(kuang)單條125mm寬(kuan)度的(de)地(di)(di)板(ban)在北方地(di)(di)區最大(da)膨(peng)脹與收(shou)縮量(liang)不會超過0.2mm。正確鋪裝(zhuang)(zhuang)后(hou)，北方地(di)(di)區夏(xia)季地(di)(di)板(ban)實(shi)際(ji)含(han)水(shui)率為12%～13%，冬季干(gan)熱(re)環境（空氣相對濕度30%左(zuo)(zuo)右），地(di)(di)板(ban)含(han)水(shui)率為6%～7%。地(di)(di)熱(re)環境，地(di)(di)板(ban)的(de)最終(zhong)平(ping)衡含(han)水(shui)率為4%～5%。也就是說地(di)(di)板(ban)鋪裝(zhuang)(zhuang)后(hou)的(de)含(han)水(shui)率夏(xia)季（雨季）要達到12%～13%，地(di)(di)板(ban)處于最大(da)實(shi)體狀態。如(ru)果地(di)(di)板(ban)是打膠(jiao)懸浮鋪裝(zhuang)(zhuang),房(fang)(fang)間的(de)地(di)(di)板(ban)形(xing)成整(zheng)體，當(dang)含(han)水(shui)率變(bian)化時，房(fang)(fang)間的(de)地(di)(di)板(ban)整(zheng)體膨(peng)脹與收(shou)縮。此(ci)時，如(ru)果房(fang)(fang)間兩側對稱擺放較重的(de)家具。

當冬季來臨，房(fang)(fang)間比較干燥，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)必然產生收(shou)縮(suo)，由于(yu)兩側(ce)重物壓住(zhu)，勢必造成房(fang)(fang)間中(zhong)(zhong)部地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)的(de)個別地(di)(di)(di)方拉開(kai)，將累計干縮(suo)量集(ji)中(zhong)(zhong)到(dao)1條或幾條縫(feng)(feng)隙(xi)(xi)(xi)中(zhong)(zhong)，產生較大地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)縫(feng)(feng)隙(xi)(xi)(xi)。如果(guo)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)邊部不(bu)打膠,3～4m寬(kuan)的(de)標準房(fang)(fang)間，在(zai)(zai)地(di)(di)(di)熱環境(jing)條件下房(fang)(fang)間地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)整個干縮(suo)量不(bu)足5㎜，每條地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)最大干縮(suo)量在(zai)(zai)0.2㎜以(yi)(yi)內，用肉(rou)眼很難(nan)看到(dao)的(de)。不(bu)打膠便(bian)于(yu)維(wei)修(xiu)，縫(feng)(feng)隙(xi)(xi)(xi)可(ke)(ke)以(yi)(yi)均勻分布。為防止地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)竄動，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)與墻邊之間可(ke)(ke)以(yi)(yi)用彈簧頂住(zhu)。無論家(jia)具(ju)如何(he)擺放都(dou)可(ke)(ke)以(yi)(yi)。另外，多層實木(mu)復合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)雖然變(bian)(bian)(bian)形(xing)小，由于(yu)構造決定(ding)了多層實木(mu)復合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)長(chang)度與寬(kuan)度方向(xiang)都(dou)變(bian)(bian)(bian)形(xing)，一(yi)般來說，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)長(chang)度是寬(kuan)度的(de)8倍以(yi)(yi)上，同等條件下，長(chang)度方向(xiang)的(de)變(bian)(bian)(bian)形(xing)也是寬(kuan)度變(bian)(bian)(bian)形(xing)的(de)倍數關(guan)系，因此，多層實木(mu)復合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)(ban)端頭縫(feng)(feng)隙(xi)(xi)(xi)大于(yu)側(ce)邊縫(feng)(feng)隙(xi)(xi)(xi)也屬正常。

筆者根據多年地板鑒定和受理投訴的經驗認為：

在(zai)地熱(re)或電(dian)熱(re)取(qu)暖的情況下(xia)，由于(yu)夏季與冬季地板(ban)含(han)水率變化(hua)范圍較(jiao)(jiao)大(da)，如果多層實木(mu)復合地板(ban)是打膠懸浮鋪(pu)裝，室(shi)內家(jia)具及重物(wu)對稱擺放(fang)，地板(ban)不能整體自由運動，一(yi)定會產生幾條(tiao)較(jiao)(jiao)大(da)縫(feng)(feng)隙（干縮(suo)量集中(zhong)到(dao)幾條(tiao)縫(feng)(feng)隙）。

如(ru)果多層實木復合(he)地板是打膠懸(xuan)浮鋪裝,防止(zhi)產生較大縫隙的方法(fa)：

1、房間內的重物最好(hao)放置在房間的一側。

2、冬季用加濕器加濕,最好將室內空氣濕度調整到50%～60%,減(jian)少(shao)室內平(ping)衡含(han)水(shui)率的變化范圍(wei)。

可(ke)以選擇地板側邊(bian)(bian)不打(da)膠(jiao)的(de)懸浮鋪裝，側邊(bian)(bian)用(yong)彈簧(huang)頂住，保(bao)證地板不向邊(bian)(bian)部(bu)竄(cuan)動,使(shi)縫(feng)(feng)隙(xi)均勻分布。并且在地板端(duan)頭(tou)(tou)接縫(feng)(feng)打(da)膠(jiao),盡量減少和避(bi)免沿單條地板長度(du)(單趟(tang)地板)方(fang)向重物(wu)對稱擺放,保(bao)證地板長度(du)方(fang)向自由(you)運(yun)動,減少端(duan)頭(tou)(tou)產生縫(feng)(feng)隙(xi)的(de)機會。一旦端(duan)頭(tou)(tou)產生縫(feng)(feng)隙(xi),由(you)于側邊(bian)(bian)沒有打(da)膠(jiao),摩擦阻(zu)力(li)小,可(ke)以用(yong)拉緊器(qi)放在單趟(tang)地板兩端(duan),將地板的(de)端(duan)頭(tou)(tou)的(de)結(jie)合處拉緊,消除(chu)端(duan)頭(tou)(tou)產生縫(feng)(feng)隙(xi),維修(xiu)方(fang)便。