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. **

The record for record sales is held by Michael Jackson's album "Thriller," which has sold an estimated 66 million copies worldwide. This makes it the best-selling album of all time. "Thriller" was released in 1982 and its success was fueled by hit singles such as "Billie Jean" and "Beat It," as well as Jackson's groundbreaking music videos. The album's continued popularity and influence have solidified its place in music history. **

An Olympic record is not considered a world record because it is specific to the Olympic Games and the conditions under which the event is held. World records, on the other hand, are recognized as the best performance ever achieved in a particular event, regardless of the competition or location. Olympic records are only valid for the duration of the specific Olympic Games, while world records are recognized and maintained by international governing bodies such as the International Association of Athletics Federations (IAAF) or the International Swimming Federation (FINA). **

A record player must have a built-in preamp or the ability to connect to an external preamp in order to record vinyl. It should also have a USB output or a line output to connect to a computer or recording device. Additionally, the record player should have a tonearm with a stylus to play the vinyl and a platter to support the record. Some record players also have the ability to adjust the tracking force and anti-skate settings for optimal recording quality. **

To record a video and simultaneously record the sound, you can use a smartphone or a digital camera with a built-in microphone. Simply open the camera app on your device and switch to video mode. Make sure the microphone is enabled and positioned to capture the sound you want to record. Then, start recording the video while ensuring that the microphone is picking up the audio. After recording, you can play back the video to check if the sound was captured properly. If you need higher quality audio, you can also use an external microphone that can be connected to your device. **

When using acrylic paint for painting, it is important to use pens that are specifically designed for use with acrylics. Some popular options include acrylic paint pens, acrylic markers, and acrylic ink pens. These pens are designed to be sealant-resistant, meaning they will not smudge or bleed when a sealant is applied over the painted surface. Look for pens that are labeled as waterproof, fade-resistant, and suitable for use on a variety of surfaces to ensure the best results for your acrylic painting projects. **