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. **

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. **

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. **

Crush may exhibit signs of jealousy, such as becoming distant or acting differently when they see you with someone else. However, it is important to communicate openly with them to understand their feelings and address any concerns they may have. Jealousy is a common emotion in relationships, but it is essential to handle it with care and respect for both parties involved. **

It is difficult to determine if someone is jealous without more context or specific behaviors to consider. Jealousy can manifest in various ways, such as possessiveness, insecurity, or competitiveness. Observing how the person reacts to certain situations or individuals, as well as their communication style, can provide insights into whether they are feeling jealous. It may be helpful to have an open and honest conversation with the person to address any concerns or misunderstandings. **

Friends can sometimes experience feelings of jealousy, especially if they perceive that their friend is achieving something they desire or if they feel left out. However, true friends should be able to communicate openly about their feelings and work through any jealousy that may arise. It's important for friends to support and celebrate each other's successes, rather than letting jealousy come between them. Overall, while friends may experience jealousy at times, it's important for them to address and overcome these feelings in order to maintain a healthy and supportive friendship. **

I cannot answer that question as I do not have enough information about the specific situation or individual. Jealousy is a complex emotion that can be influenced by various factors, including personal insecurities, past experiences, and the dynamics of the relationship in question. It would be best to directly communicate with F to understand their feelings and address any concerns. **

Without more context or information, it is difficult to determine if she is jealous. Jealousy is a complex emotion that can stem from various reasons such as insecurity, fear of losing someone, or feeling inadequate. It is important to observe her behavior, communication, and body language to better understand if she is experiencing jealousy. Open and honest communication with her about your concerns may also help clarify the situation. **