Product Calculator

How to use this Product Calculator

Measure where you'd like Vent-A-Roof to be installed on your roof and enter the length in meters in the below calculator. If your roof is flat (skillion), only enter that length. If your roof only has a ridge, then only use that measurement. There's no need to enter both Ridge and Skillion lengths if it doesn't apply to your roof.

How to measure your roof to calculate Vent-A-Roof® quantities

If you have a Regular Roof Ridge: estimate the length of the highest point of your roof where you would like Vent-A-Roof® to be installed.
If you have a Flat Roof Skillion: estimate the length of the highest point of your flat roof where you would likeVent-A-Roof® to be installed.