濕式浮式樓板於國外雖已行之有年，然而國內進行樓板面磚鋪貼時，多半採用濕式半硬底工法或大理石工法施做水泥砂漿層，致使完工後之水泥砂漿層不易如國外採用硬底工法形成連續且均質之穩固剛體。此時，若樓板上方承受局部較大荷重時，底層為軟質緩衝材料之濕式浮式樓板將可能產生不均勻沉陷之情況。為進一步了解各類緩衝材於樓板承重時所可能發生之變化，本研究以通過國內樓地板衝擊音隔音測試之濕式浮式樓板為對象，初期參考CNS 8081建築用組件（嵌板）性能檢驗法之試驗方法進行先期預備實驗後，研擬出可掌握各類緩衝材之濕式浮式樓板受集中荷重時發生沉陷變化之實驗方法，並透過實驗進一步分析各類緩衝墊其特性與沉陷量之關聯性。從實驗結果發現，橡膠類緩衝墊之沉陷量集中於1.24〜2.63 mm之間；纖維類緩衝墊沉陷量則集中於1.65〜3.17 mm之間；而發泡類緩衝墊沉陷量則是介於2.01〜3.26 mm之間。以上三類緩衝墊皆顯現密度越大整體沉陷量也越小之結果，惟當橡膠類緩衝墊密度小於400 kg/m3，及部分密度介於150〜300 kg/m3之纖維類聚酯纖維緩衝墊與部分密度為20〜40 kg/m3發泡類聚烯烴緩衝墊，其厚度越大時整體沉陷量也越大。而橡膠類緩衝墊之密度大於600 kg/m3時，其緩衝墊厚度與沉陷量則無前述之關係。

Domestically, most wet floating floors commonly use wet semi-rigid base method or marble method. This does not form a continuous rigid layer as achieved by hard base method used overseas. In practice, when a large load such as heavy furniture or equipment is placed on the upper part of the wet floating floor, the resilient material as the base layer may experience uneven settlement. To understand the settlement that occur in wet floating floors, this study focuses on wet floating floors that have passed domestic floor impact sound insulation tests. Initially, a preliminary experiment was conducted with reference to the testing methods of CNS 8081. Based on this, an experimental method was developed to measure the settlement of resilient materials under concentrated load on wet floating floors. The study further analyzed the relationship between the characteristics of different resilient material and their settlement amounts. The experimental results showed that the settlement amount for rubber pads ranged between 1.24〜2.63 mm, for fiber pads between 1.65〜3.17 mm, and for foam pads between 2.01〜3.26 mm. All three types of resilient pads exhibited a trend which higher density resulted in less settlement. However, for rubber pads with a density less than 400 kg/m³, certain polyester pads with densities between 150〜300 kg/m³, and certain foam polyolefin pads with densities between 20〜40 kg/m³, the settlement increased with greater thickness. Conversely, for rubber pads with densities greater than 600 kg/m³, this thickness-settlement relationship was not observed.