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. **

My favorite era of Taylor Swift is the "1989" era. I love the pop sound of the album and the catchy, upbeat songs like "Shake It Off" and "Blank Space." The music videos and overall aesthetic of this era were also very visually appealing. Overall, I think this era showcased Taylor's evolution as an artist and solidified her status as a pop superstar. **

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. **

The Renaissance era is particularly interesting due to its significant advancements in art, science, and culture. This period saw the emergence of great artists like Leonardo da Vinci and Michelangelo, as well as groundbreaking scientific discoveries by figures such as Galileo and Copernicus. The Renaissance also marked a shift towards humanism and a renewed interest in classical learning, making it a fascinating time of innovation and creativity. **

An era is a period of time characterized by particular events, developments, or cultural trends. It is often defined by a significant shift or change in society, technology, politics, or other aspects of human life. Eras can be marked by specific historical events, such as wars or revolutions, or by broader changes in social and cultural norms. They provide a framework for understanding and categorizing different periods of history. **

It is unclear which era is being referred to in the question. Please provide more specific information or context so that I can accurately answer your question. **

Cleopatra lived during the Hellenistic era, which was a period of history that followed the conquests of Alexander the Great and lasted from the late 4th century BC to the early 1st century BC. An era is a long and distinct period of history marked by certain characteristics, events, or developments that set it apart from other periods. It is often used to categorize and study different time periods in history. **

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. **