多層實木復合地板鋪裝后為什么會產生較大縫隙？

多層實木(mu)復合地(di)(di)板(ban)(ban)在眾多的(de)地(di)(di)板(ban)(ban)中變形(xing)量是最小的(de),變形(xing)量僅為(wei)實木(mu)地(di)(di)板(ban)(ban)弦切材最大(da)變形(xing)量的(de)1/20左右，鋪(pu)裝后(hou)不(bu)應該產生較大(da)的(de)縫隙。一般情(qing)況單條125mm寬度的(de)地(di)(di)板(ban)(ban)在北(bei)方(fang)地(di)(di)區最大(da)膨(peng)脹(zhang)與(yu)收(shou)縮量不(bu)會(hui)超過0.2mm。正確鋪(pu)裝后(hou)，北(bei)方(fang)地(di)(di)區夏(xia)季地(di)(di)板(ban)(ban)實際含(han)水率為(wei)12%～13%，冬季干熱環(huan)境（空氣(qi)相對(dui)(dui)濕度30%左右），地(di)(di)板(ban)(ban)含(han)水率為(wei)6%～7%。地(di)(di)熱環(huan)境，地(di)(di)板(ban)(ban)的(de)最終平(ping)衡含(han)水率為(wei)4%～5%。也就(jiu)是說地(di)(di)板(ban)(ban)鋪(pu)裝后(hou)的(de)含(han)水率夏(xia)季（雨季）要達到(dao)12%～13%，地(di)(di)板(ban)(ban)處于最大(da)實體狀態(tai)。如果(guo)地(di)(di)板(ban)(ban)是打膠懸浮(fu)鋪(pu)裝,房間(jian)的(de)地(di)(di)板(ban)(ban)形(xing)成(cheng)整(zheng)體，當含(han)水率變化時(shi)(shi)，房間(jian)的(de)地(di)(di)板(ban)(ban)整(zheng)體膨(peng)脹(zhang)與(yu)收(shou)縮。此時(shi)(shi)，如果(guo)房間(jian)兩(liang)側(ce)對(dui)(dui)稱擺放較重的(de)家(jia)具(ju)。

當(dang)冬(dong)季(ji)來臨，房(fang)間(jian)(jian)(jian)比較干燥，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)必然(ran)產(chan)生收(shou)縮(suo)(suo)(suo)(suo)，由于(yu)(yu)(yu)兩側(ce)重物壓(ya)住，勢必造成(cheng)房(fang)間(jian)(jian)(jian)中(zhong)(zhong)部(bu)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)的(de)(de)個(ge)別(bie)地(di)(di)(di)方拉開，將累計干縮(suo)(suo)(suo)(suo)量(liang)集中(zhong)(zhong)到(dao)1條或幾條縫(feng)隙(xi)(xi)中(zhong)(zhong)，產(chan)生較大地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)縫(feng)隙(xi)(xi)。如果地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)邊(bian)部(bu)不打膠,3～4m寬的(de)(de)標準房(fang)間(jian)(jian)(jian)，在(zai)(zai)地(di)(di)(di)熱環(huan)境條件下房(fang)間(jian)(jian)(jian)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)整(zheng)個(ge)干縮(suo)(suo)(suo)(suo)量(liang)不足5㎜，每條地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)最(zui)大干縮(suo)(suo)(suo)(suo)量(liang)在(zai)(zai)0.2㎜以(yi)內，用肉眼很難看到(dao)的(de)(de)。不打膠便于(yu)(yu)(yu)維修，縫(feng)隙(xi)(xi)可以(yi)均勻分布。為防止地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)竄動，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)與墻邊(bian)之間(jian)(jian)(jian)可以(yi)用彈(dan)簧頂住。無論家具如何擺放都可以(yi)。另外，多(duo)層實(shi)(shi)木復(fu)合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)雖然(ran)變形小，由于(yu)(yu)(yu)構(gou)造決定了多(duo)層實(shi)(shi)木復(fu)合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)長度(du)與寬度(du)方向都變形，一般來說，地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)長度(du)是(shi)寬度(du)的(de)(de)8倍(bei)以(yi)上，同等條件下，長度(du)方向的(de)(de)變形也是(shi)寬度(du)變形的(de)(de)倍(bei)數關(guan)系，因此，多(duo)層實(shi)(shi)木復(fu)合(he)地(di)(di)(di)板(ban)(ban)(ban)(ban)(ban)端(duan)頭縫(feng)隙(xi)(xi)大于(yu)(yu)(yu)側(ce)邊(bian)縫(feng)隙(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：

在地熱或(huo)電熱取暖的情況下，由于(yu)夏季與冬(dong)季地板含(han)水率變(bian)化范圍較(jiao)大，如果(guo)多層實木復(fu)合地板是打膠懸浮(fu)鋪裝，室內家(jia)具及重物對稱擺放，地板不(bu)能整體自(zi)由運(yun)動，一定會產生幾(ji)條較(jiao)大縫(feng)隙（干縮量集中到幾(ji)條縫(feng)隙）。

如(ru)果多層實木復(fu)合地板是打(da)膠懸浮(fu)鋪裝,防止產(chan)生較大縫隙(xi)的方(fang)法(fa)：

1、房間(jian)內的重(zhong)物最好放(fang)置(zhi)在房間(jian)的一側。

2、冬(dong)季用加(jia)濕(shi)器加(jia)濕(shi),最好將室內空(kong)氣濕(shi)度調(diao)整到50%～60%,減少室內平衡含水率(lv)的(de)變化(hua)范(fan)圍。

可以選(xuan)擇地(di)(di)(di)板(ban)(ban)側邊(bian)不打(da)膠的懸浮鋪裝，側邊(bian)用(yong)(yong)彈簧頂住，保(bao)證地(di)(di)(di)板(ban)(ban)不向邊(bian)部(bu)竄動,使縫隙(xi)均(jun)勻分布。并且(qie)在(zai)(zai)地(di)(di)(di)板(ban)(ban)端(duan)(duan)(duan)頭接縫打(da)膠,盡量減少和(he)避免沿單條地(di)(di)(di)板(ban)(ban)長(chang)度(du)(單趟地(di)(di)(di)板(ban)(ban))方向重物對稱(cheng)擺放,保(bao)證地(di)(di)(di)板(ban)(ban)長(chang)度(du)方向自由(you)運動,減少端(duan)(duan)(duan)頭產生(sheng)縫隙(xi)的機會。一旦端(duan)(duan)(duan)頭產生(sheng)縫隙(xi),由(you)于側邊(bian)沒有(you)打(da)膠,摩擦阻力小,可以用(yong)(yong)拉緊器放在(zai)(zai)單趟地(di)(di)(di)板(ban)(ban)兩端(duan)(duan)(duan),將地(di)(di)(di)板(ban)(ban)的端(duan)(duan)(duan)頭的結合處拉緊,消除端(duan)(duan)(duan)頭產生(sheng)縫隙(xi),維修方便。