Figuring Waste for DaVinci Products

Deciding how much waste should be figured for the different DaVinci roofing products requires the contractor to answer a few questions.

  1. Can the installers be counted on to be careful and save material where they can?

  2. If they cut a tile for a valley will they use the remnant on the corresponding hip?

  3. On Multi-width installation will they measure for the correct tile on the gable end or will they cut the tile and throw away the rest as waste?

  4. On Valoré will they use the cutoff portion from the right side of a gable and use it on the left?

If the answer to all of these questions is yes then DaVinci Multi-Width Slate and Shake can be installed with < 1% waste; unless there are valleys in the roof which don’t have corresponding hips. In that case there is 1 square of waste for every 100 linear feet of valley (that counts both sides of the valley). Valoré Slate and Shake can be installed with < 2% waste with the same stipulation as above.

Bellaforté Slate and Shake will have more waste than our other products because often times the remnant of a cut cannot be reused. A good rule of thumb for the Bellaforté products is 4% waste with a conservative installer but that can go up to 8% if the installers are not conscientious about saving material.

For tips to help eliminate waste in valleys, please read Installing DaVinci Tiles With No Waste.


Name: paul mcneely
Time: Monday, October 3, 2016

i have a project where shake is spec'd on a mansard.
what would be the suggestion for how to finish top of mansard?
Name: DaVinci Roofscapes
Time: Thursday, October 20, 2016

Hi Paul,

Thank you for your question. Please call 1-800-328-4624 to speak to our customer service department. They will be able to help you get everything ready to go.

Best of luck! We will look forward to seeing the finished project.

The DaVinci Roofscapes Team

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