How to Remove Existing Waterproof

[nasis]

Hello I am currently having a problem in removing existing asphalt waterproofing in the roof deck. We do it manually and it takes a lot of time because the area to be remove is 30,000 square meters. What is the fastest way to do it? I hope to hear your suggestions. Thank you.

[nasis]

Hello I am currently having a problem in removing existing pebble asphalt waterproofing in the concrete roof deck. We do it manually and it takes a lot of time because the area to be remove is 30,000 square meters. The purpose of removing existing waterproofing is to rewaterproof with torch applied waterproofing membrane. What is the fastest and best way to do it? I hope to hear your suggestions. Thank you.