While there are many variations there are two popular options used to create a hot roof.
Roof hot water system.
These collect heat from the sun and use it to heat up water that is kept during a hot water cylinder.
When properly installed unvented roofs perform well and cause no excess moisture accumulation.
A boiler or heating element is often used as a back up to heat the water any to succeed in the temperature you wish.
If water or air ducts run through your attic space they are less likely to be affected by extreme temperatures and this can save you money on utility costs.
Small units or retirees.
These roofs can lower your heating costs in the winter.
Solar water heating systems use solar panels known as collectors fitted to your roof.
The smaller volume of the 181l makes it ideal for applications where low volumes of solar hot water are required e g.
Sunearth offers a variety of solar hot water heating solutions that allow you to use the sun s power to provide hot water for all your needs.
The first method revolves around foam sprayed in place generally sprayed in between the rafters trusses while the second utilizes foam board generally placed on top of the exterior roof sheathing.