Greenhouse gas emissions can occur in many ways. 1) The anaerobic decomposition of waste in landfills produces methane greenhouse gas 21 times more potent than carbon dioxide. 2) The incineration of waste produces carbon dioxide as a by-product. 3) The transportation of waste to disposal sites produces greenhouse gas emissions from the combustion of the fuel used in the equipment. 4) The disposal of materials indicates they are being replaced by new products that often require the use of fossil fuels to obtain raw materials to produce the items.
The life cycle of waste starts with the use of natural resources to produce raw materials and the transport of those raw materials to the manufacture site where energy is needed to produce useable products to construct buildings. At the end of a building's service life, it is demolished, transported and disposed of by either composting, incineration or storage in a landfill that requires large amounts of energy and produces off gassing. This building life cycle is way too short, especially for individual building components like roofing. Today the choice of using the right sustainable and renewable protective green coatings can extend the life of a building and its individual components indefinitely.
It makes perfect sense to limit the amount of waste we generate, transport and store. One of the best ways to do this is to recycle our buildings and roofing; not after they've been demolished, but before. Too often in the past we would allow a building to go unprotected to the point of deterioration where it would then have to be demolished or replaced. This is both financially and environmentally wasteful. We have to take action to extend the life of our buildings. This will reduce a large proportion of waste and generation of harmful greenhouse gases.
The simplest way to extend a building's service life is to use the right protective green coating and this renewable coating will wear away with time, not the building or the component it is shielding. A prime example is when we are told that a roof has reached the end of its useful service life and needs to be torn off and replaced. That same roof can now be treated with a proper green coating that can extend the roof's life indefinitely, keeping what is good about it such as the insulation factor and structural strength, and creating a new, sustainable roof.
Many landfills today are at their maximum capacity and some are overflowing. By limiting the generation, transportation and storage of unwanted waste in the ever shrinking number of available landfills, we can help reduce the production of greenhouse gases that in turn contribute to global warming and climate change. Environmentally friendly, interior/exterior, green coatings renew and extend the life cycle of existing building stock. So remember 'Don't Replace, Just Encase!'