**3.5 Why is engineered wood expensive?**

In addition, the production of engineered wood costs more than traditional wood products due to more complex processes and advanced technologies. Also, some types of wood used in the construction of engineered wood are of high quality, which requires additional costs for their extraction. In general, engineered wood can be used due to its advantages such as less wood consumption, lower maintenance and installation costs, greater yield from the tree, and more sustainable applications.

## **3.6 How long does engineered wood last?**

The life of engineered wood generally depends on the quality of construction, the type of trees used, environmental conditions, and how to maintain and use it. However, for high-quality engineered wood, it has a lifespan of at least 30–50 years. Considering that engineered wood is more resistant than traditional wood, it is usually used in domestic and industrial applications to make walls, doors, windows, parquet, and furniture [10].

#### **3.7 How do you protect engineered wood?**

You can use the following methods to preserve engineered wood and increase its life: Regular care and maintenance: to prevent damage to engineered wood, it should be cleaned regularly and dust and dirt removed from it. Use cleaners made of engineered wood. You can also use wood conditioners to keep moisture inside the wood. Use of protective coating: using protective coating can prevent wrinkling and scratching. You can use a water, soil, and corrosion protection coating to protect engineered wood from water, weather, insects, and scratches. Coating with paint or wood oil: by coating engineered wood with paint or wood oil, you protect it from moisture, wind, and sunlight. People who want to use engineered wood outdoors can use wood paint to cover the wood to prevent corrosion and scratches.

Installing in the right place: installing engineered wood in environments with moderate temperature and humidity is one of the solutions that can help preserve it. Avoid installing engineered wood in areas that are exposed to water, sunlight, and direct wind. In short, to maintain engineered wood, it should be cleaned regularly, use a protective coating, and cover It is important to choose the right place to install it with paint or wood oil [37].

## **4. Conclusion**

Although engineered wood protects the environment and prevents indiscriminate cutting of trees, it should be kept in mind that this type of wood can cause serious harm to human health. Because in its production process, a type of glue is used that contains a harmful substance called formaldehyde; Therefore, and both carpenters and manufacturers are exposed to damage caused by engineered wood; Therefore, these people should look for solutions such as the use of masks and the size of safety equipment to minimize the possible risks of working with engineered wood.
