多層實木復合地板鋪裝后為什么會產生較大縫隙？

多(duo)層(ceng)實(shi)(shi)木復合(he)地(di)(di)(di)(di)(di)板(ban)(ban)在眾多(duo)的(de)地(di)(di)(di)(di)(di)板(ban)(ban)中變(bian)形(xing)(xing)量是(shi)最(zui)(zui)小的(de),變(bian)形(xing)(xing)量僅為(wei)實(shi)(shi)木地(di)(di)(di)(di)(di)板(ban)(ban)弦切材最(zui)(zui)大(da)變(bian)形(xing)(xing)量的(de)1/20左(zuo)右，鋪裝后(hou)不應該產生(sheng)較大(da)的(de)縫隙。一般情況單(dan)條125mm寬度(du)的(de)地(di)(di)(di)(di)(di)板(ban)(ban)在北(bei)方(fang)地(di)(di)(di)(di)(di)區(qu)最(zui)(zui)大(da)膨脹與(yu)(yu)收縮量不會超過0.2mm。正(zheng)確鋪裝后(hou)，北(bei)方(fang)地(di)(di)(di)(di)(di)區(qu)夏(xia)季(ji)地(di)(di)(di)(di)(di)板(ban)(ban)實(shi)(shi)際(ji)含(han)(han)水(shui)率為(wei)12%～13%，冬季(ji)干(gan)熱環境(jing)（空氣相對濕度(du)30%左(zuo)右），地(di)(di)(di)(di)(di)板(ban)(ban)含(han)(han)水(shui)率為(wei)6%～7%。地(di)(di)(di)(di)(di)熱環境(jing)，地(di)(di)(di)(di)(di)板(ban)(ban)的(de)最(zui)(zui)終平衡含(han)(han)水(shui)率為(wei)4%～5%。也就是(shi)說地(di)(di)(di)(di)(di)板(ban)(ban)鋪裝后(hou)的(de)含(han)(han)水(shui)率夏(xia)季(ji)（雨季(ji)）要達到(dao)12%～13%，地(di)(di)(di)(di)(di)板(ban)(ban)處于最(zui)(zui)大(da)實(shi)(shi)體狀態。如果(guo)地(di)(di)(di)(di)(di)板(ban)(ban)是(shi)打膠懸浮鋪裝,房間(jian)(jian)的(de)地(di)(di)(di)(di)(di)板(ban)(ban)形(xing)(xing)成整(zheng)體，當含(han)(han)水(shui)率變(bian)化時，房間(jian)(jian)的(de)地(di)(di)(di)(di)(di)板(ban)(ban)整(zheng)體膨脹與(yu)(yu)收縮。此時，如果(guo)房間(jian)(jian)兩側對稱擺放較重(zhong)的(de)家(jia)具(ju)。

當冬季來臨，房(fang)間(jian)(jian)比較干(gan)燥(zao)，地(di)(di)板(ban)必(bi)然(ran)產生(sheng)收縮(suo)，由于兩側重物(wu)壓住，勢必(bi)造(zao)成房(fang)間(jian)(jian)中部(bu)(bu)地(di)(di)板(ban)的(de)(de)(de)個(ge)別地(di)(di)方拉開，將累計干(gan)縮(suo)量集中到1條或幾(ji)條縫隙中，產生(sheng)較大(da)地(di)(di)板(ban)縫隙。如(ru)果地(di)(di)板(ban)邊(bian)部(bu)(bu)不打(da)膠,3～4m寬(kuan)的(de)(de)(de)標(biao)準(zhun)房(fang)間(jian)(jian)，在地(di)(di)熱環境條件(jian)下(xia)房(fang)間(jian)(jian)地(di)(di)板(ban)整個(ge)干(gan)縮(suo)量不足5㎜，每條地(di)(di)板(ban)最大(da)干(gan)縮(suo)量在0.2㎜以(yi)內，用(yong)肉眼很難看到的(de)(de)(de)。不打(da)膠便于維修，縫隙可以(yi)均(jun)勻分布。為(wei)防止地(di)(di)板(ban)竄動，地(di)(di)板(ban)與墻邊(bian)之(zhi)間(jian)(jian)可以(yi)用(yong)彈簧頂(ding)住。無(wu)論家具如(ru)何擺放都可以(yi)。另外(wai)，多層實(shi)木復合(he)地(di)(di)板(ban)雖(sui)然(ran)變(bian)(bian)形(xing)小，由于構(gou)造(zao)決定了多層實(shi)木復合(he)地(di)(di)板(ban)長(chang)度(du)與寬(kuan)度(du)方向(xiang)都變(bian)(bian)形(xing)，一般(ban)來說，地(di)(di)板(ban)長(chang)度(du)是寬(kuan)度(du)的(de)(de)(de)8倍(bei)以(yi)上，同等條件(jian)下(xia)，長(chang)度(du)方向(xiang)的(de)(de)(de)變(bian)(bian)形(xing)也是寬(kuan)度(du)變(bian)(bian)形(xing)的(de)(de)(de)倍(bei)數關(guan)系(xi)，因此，多層實(shi)木復合(he)地(di)(di)板(ban)端(duan)頭縫隙大(da)于側邊(bian)縫隙也屬(shu)正常。

筆者根據多年地板鑒定和受理投訴的經驗認為：

在地熱或電熱取(qu)暖的情(qing)況下，由(you)(you)于(yu)夏季(ji)(ji)與(yu)冬季(ji)(ji)地板(ban)含水率(lv)變(bian)化范圍較大，如果多層實木復(fu)合地板(ban)是打膠懸浮鋪(pu)裝，室內家具及(ji)重物(wu)對稱擺放，地板(ban)不能整體自由(you)(you)運動，一定(ding)會產生幾條較大縫(feng)隙(xi)（干縮量(liang)集中到幾條縫(feng)隙(xi)）。

如果多層實木復(fu)合地板(ban)是(shi)打膠懸浮鋪裝(zhuang),防止產生(sheng)較大縫隙的方法：

1、房(fang)間(jian)(jian)內(nei)的重物(wu)最(zui)好放(fang)置(zhi)在房(fang)間(jian)(jian)的一側(ce)。

2、冬季用加濕器加濕,最好將(jiang)室(shi)內(nei)空氣濕度調整到50%～60%,減(jian)少室(shi)內(nei)平衡含水率(lv)的變化范圍。

可以選擇(ze)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)側邊不打膠(jiao)的(de)懸(xuan)浮鋪裝，側邊用彈簧(huang)頂住，保(bao)證地(di)(di)(di)(di)(di)板(ban)(ban)(ban)不向(xiang)邊部竄動,使縫隙(xi)(xi)均勻分布(bu)。并(bing)且在地(di)(di)(di)(di)(di)板(ban)(ban)(ban)端(duan)(duan)頭(tou)(tou)接縫打膠(jiao),盡量減少和避免沿單條地(di)(di)(di)(di)(di)板(ban)(ban)(ban)長(chang)度(單趟地(di)(di)(di)(di)(di)板(ban)(ban)(ban))方向(xiang)重物對稱擺放,保(bao)證地(di)(di)(di)(di)(di)板(ban)(ban)(ban)長(chang)度方向(xiang)自由運動,減少端(duan)(duan)頭(tou)(tou)產(chan)(chan)生縫隙(xi)(xi)的(de)機會。一(yi)旦端(duan)(duan)頭(tou)(tou)產(chan)(chan)生縫隙(xi)(xi),由于側邊沒有打膠(jiao),摩擦阻力小,可以用拉緊器放在單趟地(di)(di)(di)(di)(di)板(ban)(ban)(ban)兩端(duan)(duan),將(jiang)地(di)(di)(di)(di)(di)板(ban)(ban)(ban)的(de)端(duan)(duan)頭(tou)(tou)的(de)結合處拉緊,消除端(duan)(duan)頭(tou)(tou)產(chan)(chan)生縫隙(xi)(xi),維修方便。