Roof secure for the future

Roofs not producing no electric power an no heat and break down because a littile bit snowfall have nothing to do with a secure future.

  Cogeneration heat electric power roof

For luck, there is a new technology. The combination of photovoltaic and heat makes it possible to produce electricity and heat with the roof.

To cool in the summer the roof with the colder underground. What's more adjacent than to use the system in the winter to melt a thin layer of snow and let the snow slide down on a water film. Not as a big roof avalanche, but in small portions.

  Less strong static possible

A snow able to let the snow slide down can be weaker designed and saves so money. The combined electricity heat production pays not only by the electricity and heat production, but also by the lower cost of the construction.

Photovoltaic - Electric power direct from light Photovoltaic - Electric power direct from light
Even a far north situated industrial nation like Germany could produce a big part of the needed energy by the roofs of the houses. Photovoltaic has much potential.

Photovoltaic and heat combined Photovoltaic and heat combined
Cogeneration of electric power and heat from one modul. Optimal utilization of roofs by combined production of electric power and heat on the same area.

Plan for house building - requirements specifications Plan for house building - requirements specifications
From the first idea over the requirements specifications and how this develops to constructions plans. The development of my second plus energy house.

Roof for a one family house
Planning for the roof, the deciding component, which makes a house an energy waster or energy producer. Electric power and warmth from the roof is a must.

  Snow roof and snow weight

A winter with extrem much snow forces to reevaluate all our roofs. Not only that most roofs produce not energy, they are at much snow deadly dangerously.

Snow shoveling on the roof Snow shoveling on the roof
A very dangerouse work on a snowy roof. For the workers, but also for the chief in case of an accident with an unsecured worker.

Solar collector snow free Solar collector snow free
On the north side is like on all other houses about one half meter snow on the roof. But the snow can not perist on the large solar collector.

Water film lets slide the snow Water film lets slide the snow
80 minutes after I was car driving, all the snow from the front of the roof had slid to the windshield. The warmth from the interior room has melted a thin layer of snow..

Solar-collector under snow
Only a small upsurge in the snow shows, that on this roof of a garage is a solar collector. The failure: Below the collector is a tile roof. Solar collector partial free from snow
Only a half meter tiles below the solar collector prevent the sliding of the snw. Tin instead of tiles would help here. Snow glides on a water film
At the first time, I thought a prankster pushed all the snow from the roof to the windshield. Because it happened several times, I started to think about it. Photovoltaic snow free by sliding
After the snow always slided down from the little bit descending roof to the windshield, it stands firm: The solution for a snow free photovoltaic. Snow turned over from the roof
Over the garbage container is a tin roof. The sun was sining on the left side. The heat had spread out to the right side and melted a thin layer of snow.

Context description:  secure for the future roof roofs
snowy extrem much high snow event events date time month 2 Feb February winter