Yes, it is possible to install dry screed on old screed. Dry screed systems are designed to be installed on top of existing floor surfaces, including old screed. This can be a cost-effective and efficient way to improve the insulation and soundproofing of a floor without having to remove the existing screed. However, it is important to ensure that the old screed is in good condition and properly prepared before installing the dry screed system to ensure a smooth and level finish. **

The amount of screed needed to pour concrete screed will depend on the thickness of the screed layer and the area to be covered. To calculate the volume of screed required, you can multiply the area to be covered by the thickness of the screed layer. For example, if you have an area of 50 square meters and you want to pour a 50mm thick screed, you would need 2.5 cubic meters of screed (50 sqm x 0.05m = 2.5 cubic meters). It is always recommended to order slightly more screed than calculated to account for any wastage or uneven surfaces. **

Screed 3 is a type of construction material used to create a level surface on a concrete floor. It is typically made of a mixture of cement, sand, and water, and is poured and spread over the concrete to fill in any imperfections and create a smooth, flat finish. Screed 3 is commonly used in the construction industry to prepare floors for the installation of tiles, carpet, or other types of flooring. **

If moisture or water is still present under the screed, it can lead to several problems. Firstly, it can cause the screed to become soft and weak, leading to structural issues and potential damage to the flooring above. Additionally, it can create an environment for mold and mildew to grow, which can be harmful to indoor air quality and pose health risks. Furthermore, the presence of moisture can cause the flooring to become uneven and can lead to issues with adhesion of floor coverings. Overall, it is important to ensure that the screed is properly dried and free of moisture before any flooring is installed. **

To correct screed, one can start by identifying the areas that need adjustment or repair. This can involve checking for uneven surfaces, cracks, or areas that are not level. Once the issues are identified, the screed can be corrected by adding more screed material to level out uneven surfaces, filling in cracks with a suitable filler, or using a straight edge to ensure a level finish. It is important to follow the manufacturer's guidelines for the specific type of screed being used to ensure proper correction. **

After the screed is applied, the next step is typically to lay the flooring material on top of it. This could be tiles, wood, laminate, or any other type of flooring chosen for the space. The flooring material is installed on top of the screed once it has dried and cured properly, creating a smooth and level surface for the final floor finish. Finally, once the flooring is installed, any necessary finishing touches such as sealing, grouting, or sanding may be done to complete the project. **

To dry screed, first ensure that the screed is laid evenly and at the correct thickness. Then, allow the screed to dry naturally for at least 24-48 hours, depending on the type of screed used. It is important to ensure good ventilation during the drying process to allow moisture to escape. Avoid walking on the screed during the drying period to prevent any damage. Finally, once the screed is completely dry, it can be sealed or covered with the desired flooring material. **

To saw screed, you will need a concrete saw with a diamond blade. First, mark the area where you want to cut the screed. Then, carefully use the concrete saw to make straight and even cuts along the marked lines. It's important to wear appropriate safety gear, such as goggles and a mask, and to follow proper safety precautions when using a concrete saw. After sawing the screed, you can use a chisel and hammer to break it along the cut lines. **