Because it is flexible and easy to nail through.
LEAD
Because they can last over 300 years If installed properly
It is much too expensive.
Sand is used on roofing shingles to keep the individual shingles from sticking to each other during storage.
Glass fiber reinforced roofing felt is a type of roofing material that incorporates glass fibers to enhance its strength and durability. This reinforcement helps the felt resist tearing and provides better dimensional stability, making it suitable for various roofing applications. Typically used as an underlayment, it serves as a moisture barrier and adds protection against weather elements. Its lightweight nature and resistance to UV degradation also contribute to its popularity in roofing systems.
LEAD
Because they can last over 300 years If installed properly
No, gypsum is not used in roofing or paint products
Lead flashing is commonly used in the roofing industry and can cause lead contamination. Lead can cause problems with water systems if the flashing is not water tight.
Because it's easy to work with, and it's weather proof. (The lead forms a patina when exposed to the elements that seals it in, so it won't leach lead into the groundwater.)
Thick asphalt-impregnated paper used for roofing.
i don't understand exactly what you are asking but.....a form of concrete is used for decks in roofing.
Plywood is primarily used as a sheathing material in roofing applications to provide a stable base for roofing materials such as shingles or tiles.
Black Knight roofing tar .
Lead is primarily used in the production of batteries, including car batteries. It is also used in building construction, particularly in roofing and piping due to its durability and resistance to corrosion. Additionally, lead has been historically used in certain types of ammunition and as a radiation shield in medical imaging and nuclear facilities.
New trend of roofing sheets.
Gold is not used as roofing primarily due to its high cost and low durability. While it is a highly malleable and corrosion-resistant material, gold does not provide the structural strength needed for roofing applications and can be easily damaged. Additionally, its value makes it impractical for widespread use in construction, where more affordable and durable materials like asphalt, metal, or tiles are preferred. Lastly, gold's reflective properties can also lead to excessive heat buildup, making it less suitable for roofing purposes.