Underlayment and Decking Needs for DaVinci Roofing Materials

DaVinci Slate in AspenWhen you have a DaVinci Roof installed there are a few more things that you will need to consider than just the polymer roof tiles.

1. What's underlayment and which do I need for DaVinci?

Underlayment is an asphalt-saturated felt or other sheet material installed between the roof deck and the roof covering. Underlayment is used to separate the roof covering from the roof deck, to shed water and to provide secondary weather protection for the roof area of the building.  For DaVinci Slate to have a Class A fire rating, all you need is 30 lb. felt underlayment.  For DaVinci Shake and Bellaforte, you will need 2 layers of MB Tech or Fontana G 40. 

2. What is needed for the roof deck?

For all DaVinci plastic roofing materials, we recommend that you use 1/2 inch plywood decking to ensure a stable roof.  Of course, if you want your roof to have a Class A fire rating and a Class 4 impact rating, then you must use this roof decking.

Please don't hesitate to contact us with additional questions that you have about an imitation slate roof at 1-800-328-4624 or 913-599-0766 or online or by leaving a comment below.

Name: javier
Time: Friday, December 17, 2010

If roof has 2 by 6 rafters is it nesessary to install earthquake straps on sheeting. how much is the weight on 100 square feet of field for this material
Name: steve holbrook
Time: Wednesday, July 22, 2015

for da vincia bellaforte shake roof is astmd 266 a proper underlayment.
Name: DaVinci Roofscapes
Time: Thursday, August 20, 2015

Hi Steve,

Please call our sales support department at 1-800-328-4624 and they will be able to help you get the appropriate amount of materials.


The DaVinci Roofscapes Team

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