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2. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Stone slabs require a very heavyweight roof structure, but their weight makes them stormproof. An obsolete roofing material, now used commercially only for building restoration. Collyweston stone slate named after the village of Collyweston; Solar shingle; Metal shakes or shingles. Long life. High cost, suitable for roofs of 3:12 pitch or greater.

3. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   Other applications, including polycarbonate sheets, may have the anti-UV layer added as a special coating or a coextrusion for enhanced weathering resistance. Polycarbonate is also used as a printing substrate for nameplate and other forms of industrial grade under printed products. The polycarbonate provides a barrier to wear, the elements ...

4. Solar canopy - Wikipedia

   en.wikipedia.org/wiki/Solar_canopy

   These solar panels operate on a Rotating Roof Gazebo System which allows the solar panels to turn towards the sun as it moves throughout the day. [9] This allows for the solar panels to have direct sunlight throughout most of the day unlike stationary solar panels that will only receive full sunlight for a limited period of time.

5. Gazebo - Wikipedia

   en.wikipedia.org/wiki/Gazebo

   A gazebo is a pavilion structure, sometimes octagonal or turret-shaped, often built in a park, garden, or spacious public area. [1] Some are used on occasions as bandstands . The name is also now used for a tent like canopy structure with open sides used as partial shelter from sun and rain at outdoor events.

6. Cost estimate - Wikipedia

   en.wikipedia.org/wiki/Cost_estimate

   A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate. A cost ...

7. Greenhouse - Wikipedia

   en.wikipedia.org/wiki/Greenhouse

   [44] [45] "Semi-transparent" PV panels used in agrivoltaics increase the spacing between solar cells and use clear backsheets enhancing food production below. In this option, the fixed PV panels enable the east–west movement of the sun to "spray sunlight" over the plants below, thereby reducing "over-exposure" due to the day-long sun as in ...