core-test.mp4

This is an example of a flat roof core testing survey completed in 2021. The insulation layer was present beneath a felt roof covering laid onto asphalt. Only by digging deeper, were we able to know that insulation was present at all and in this case, was soaking wet. Before completing any flat roof waterproofing project, have a core sampling survey completed - it could save you a lot of wasted time and money.