roofs, roof leaks, roof problems,
roof failures, roof consulting, roofing experts, BUR, Modified Bitumen,
advice, testing & litigation support
systems and construction
"The Hannover Principles: Design for Sustainability"
Insist on rights of humanity and nature to co-exist in a healthy,
supportive, diverse and sustainable condition.
Recognize interdependence. The elements of human design interact with and
depend upon the natural world, with broad and diverse implications at
every scale. Expand design considerations to recognizing even distant
Respect relationships between spirit and matter. Consider all aspects of
human settlement including community, dwelling, industry and trade in
terms of existing and evolving connections between spiritual and material
Accept responsibility for the consequences of design decisions upon human
well-being, the viability of natural systems and their right to coexist
Create safe objects of long-term value. Do not burden future generations
with requirements for maintenance or vigilant administration of potential
danger due to the careless creation of products, processes or standards.
Eliminate the concept of waste. Evaluate and optimize the full life-cycle
of products and processes, to approach the state of natural systems, in
which there is no waste.
Rely on natural energy flows. Human designs should, like the living world,
derive their creative forces from perpetual solar income. Incorporate this
energy efficiently and safely for responsible use.
Understand the limitations of design. No human creation lasts forever and
design does not solve all problems. Those who create and plan should
practice humility in the face of nature. Treat nature as a model and
mentor, not as an inconvenience to be evaded or controlled.
Seek constant improvement by the sharing of knowledge. Encourage direct
and open communication between colleagues, patrons, manufacturers and
users to link long term sustainable considerations with ethical
responsibility, and re-establish the integral relationship between natural
processes and human activity."
Copyright 1992 by William McDonough
Architects, all rights reserved.