Through the test production and construction application tracking of the root-resistant copper-base root-penetrating modified asphalt waterproof roll used for planting roof in recent years, it is found that the copper-base root-penetrating modified asphalt waterproof roll used for planting roof has some defects and is not suitable for practical application. The specific reasons are as follows:

1. The reinforced base used in the copper-based root-penetration-resistant modified asphalt waterproof coiled material for planting roof - copper foil has the characteristics of metal, and the surface is relatively smooth after production and processing. In the production and manufacturing process of using it as a carrier to coat the modified asphalt, the modified asphalt is relatively difficult to adhere. Even after the surface treatment is rough, the adhesion is still relatively small compared with polyester tire and copper-plated felt.

2. The heat conduction of metal medium and the cooling and shaping of production and manufacturing will increase the difficulty and affect the appearance of products. It is also difficult to change rolls and splice between copper foil bases. Poor splicing will easily cause the body to break, so the production and manufacturing will lead to a higher rate of defective products. The construction and application of the internal and external corners, pipe roots and other special-shaped parts of the roof require different degrees of splicing and folding.

3. Due to the poor ductility of the copper foil at the folding place, the local copper substrate has small cracks or even cracks. Once the cracks occur, the continuity of the dense root resistance will be lost. In serious cases, the copper foil will lead to the breaking of the modified asphalt coated on it. Even the modified asphalt added with chemical root resistance agent cannot fully guarantee the root resistance performance, especially in the case of low temperature.

4. When the copper-based root-penetration-resistant modified asphalt waterproof coiled material for planting roof is hot-melted, it is easy to have structural delamination, mainly due to the thermal conductivity of the copper foil. During the hot-melt construction, the heat needs to be transferred out, and it is easy to have asphalt layer and copper foil delamination, that is, "mouth opening" phenomenon, and occasionally accompanied by edge warping phenomenon.

Because the current planting roof materials can only conduct qualitative analysis on the materials containing chemical root resistance, the quantitative analysis is not accurate enough due to its small content, so it can be considered to select the two-layer planting roof composite copper matrix root puncture resistant modified asphalt waterproof coiled material, Or the chemical root puncture resistant modified asphalt waterproof coiled material (placed on the upper layer) for one layer of planting roof and the composite copper base root puncture resistant modified asphalt waterproof coiled material (placed on the lower layer) for one layer of planting roof shall be applied together.

Regardless of the scheme, the upper and lower layers of the lap joints should be staggered. The root puncture-resistant modified asphalt waterproof coiled material with composite copper base for planting roof is selected because there is a layer of copper-plated felt or thin copper foil in the middle layer of the product structure. It can be seen from the product section structure that the authenticity can be visually determined and the authenticity and reliability of the material can be improved.