To apply a new waterproofing membrane on top of an old bitumen waterproofing membrane, the surface of the old membrane should be thoroughly cleaned and prepared. Any loose debris, dirt, or old adhesive should be removed to ensure proper adhesion of the new membrane. Once the surface is clean, a primer should be applied to promote adhesion between the old and new membranes. Finally, the new waterproofing membrane can be installed according to the manufacturer's instructions, ensuring that it is properly sealed and bonded to the old membrane to provide effective waterproofing. **

No, the tongue coating in the image appears to be thicker and more discolored than what is typically considered normal. A normal tongue coating is usually thin and clear to white in color. The presence of a thick, yellowish coating may indicate poor oral hygiene, dehydration, or an underlying health issue. It is recommended to consult a healthcare professional for further evaluation and guidance. **

Yes, tongue coating is still considered normal. It is a common occurrence caused by a buildup of bacteria, dead cells, and food debris on the surface of the tongue. However, the thickness and color of the coating can vary depending on factors such as oral hygiene, diet, and overall health. In most cases, tongue coating can be easily removed by gently brushing or scraping the tongue as part of a regular oral hygiene routine. **

A thin, pale yellow coating on the tongue is considered normal and is usually a sign of good health. However, a thick or dark yellow coating on the tongue may indicate an underlying health issue such as dehydration, oral thrush, or liver problems. It is important to pay attention to any changes in the color or thickness of the tongue coating and consult a healthcare professional if there are any concerns. **

A utility knife or a sharp blade is typically used to cut the waterproofing membrane. It is important to use a sharp tool to ensure clean and precise cuts, which will help in achieving a proper seal and prevent water leakage. Care should be taken to avoid damaging the underlying surface while cutting the membrane. **

A white coating on the tongue can be normal and is often caused by a buildup of dead cells, bacteria, and debris. However, if the coating is accompanied by other symptoms such as bad breath, changes in taste, or pain, it could be a sign of an underlying health issue such as oral thrush, dehydration, or an infection. It is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment if you are concerned about the coating on your tongue. **

To determine if the color of the mucous membrane is normal, it is important to consider the specific area being observed. For example, the color of the gums in the mouth should be a healthy pink color, indicating good blood flow. If the mucous membrane appears pale or discolored, it could be a sign of anemia or poor circulation. On the other hand, if the mucous membrane appears red or inflamed, it could indicate an infection or irritation. Therefore, it is important to compare the color of the mucous membrane to what is considered normal for the specific area being observed. **

Ideally, the waterproofing membrane should be applied in dry weather to ensure proper adhesion and effectiveness. If the membrane is applied and then it rains before it has fully cured, it can compromise its ability to create a watertight seal. Water exposure during the curing process can lead to delamination, reduced adhesion, and potential leaks. Therefore, it is best to apply the waterproofing membrane when there is no rain in the forecast and allow it to fully cure before any water exposure. **