Underlayment Calculator

Synthetic Underlayments vs. Felt Cost Calculator

Use the Calculator below to work out the cost of using 100% synthetic RhinoRoof U20 or Titanium UDL30 10 square rolls compared to using traditional 15 lb or 30 lb felt.

  • Instructions:
  • Type either the cost per roll of RhinoRoof, Titanium or Felt into the appropriate box
  • Click "Calculate" and the Calculator will do the rest
  • You can edit the values and click Calculate to update the results to suit your requirements
  • Do not use spaces, commas or $ signs, if the roof is 10,000 square feet, input it as: 10000
  • Clicking "Calculate" without inputing any data will return default values that you can then edit



RhinoRoof
vs. 15 lb Felt
RhinoRoof Roll
Titanium UDL30
vs. 30 lb Felt
Titanium UDL30 Roll
*Cost per roll RR/UDL30
*Cost per roll Felt
Labor rate ($ Per Hr)
Size of Roof (Sq Ft)
 
Calculate
Calculate
 
 
15 lb Felt
RhinoRoof
30 lb Felt
UDL30
Material Cost
Labor Cost
Total Install Cost
Variance  
% Premium
 
 
15 lb Felt
RhinoRoof
30 lb Felt
UDL-30
Square feet per roll
Coverage
Number of rolls
**Installation (feet per hr)
**Installation time (hrs)

** The installation times are approximations only, the actual time required to install felt or synthetic underlayment will vary depending on many factors that can not be addressed with the Synthetic Underlayment vs. Felt calculator. The times presented are approximated based on the additional time required to install felt underlayments. For instance, a 5000 square foot job requires 25 rolls of 30 lb felt compared to only 5 rolls of RhinoRoof or Titanium, that means extra time and labor to transport and carry the rolls onto the roof deck. The approximations also take into account the additional laps required to complete a job using felt paper, for instance, a rectangular roof deck that is 22 feet in height requires 8 laps (with a 3" overlap) of 36" wide felt paper whereas the same 22 feet can be covered with just 6 laps of 48" wide Titanium. As felt paper requires more laps to complete, it also requires more anchoring devices which adds time and additional costs.

* InterWrap Inc can not be held responsible for any inaccuracies or discrepancies that result from the use of the calculations derived from the Synthetic Underlayment vs. Felt calculator. All costs are approximations only. The figures presented here are by no means meant to reflect actual amounts either a roofer or homeowner should expect to pay for labor or materials. The cost per roll of RhinoRoof, Titanium and felt paper are approximations only and can vary from region to region. Only your roofing contractor can provide you with an accurate quote or final dollar amount for having either felt paper, RhinoRoof or Titanium synthetic underlayment applied to a roof deck. The actual cost of felt paper, RhinoRoof or Titanium is dependent on many factors that can not be accounted for using this calculator. Use of the Synthetic Underlayment vs. Felt Calculator is only intended to aid in the decision to use RhinoRoof or Titanium over felt paper. It is in no way meant to be used as a tool for accurately costing roofing projects.