How much denso tape do i need?

[Zippymark]

Hello, i've got a job to replace some pipework in the floor with new, then cover it in denso tape.

Can anyone give me a rough idea how much coverage i'll get per roll? It's 15mm and 22mm pipes, im thinking 50mm x 10m rolls.

Thankyou

 

[Chuck]

I think this this what you need:

http://www.densona.com/pdfs/DensoEstimatingTables/Denso-Quantity-Estimate-Sheet.pdf

Surface area of pipes is:

0.047 m^2 per metre for 15mm and
0.069 m^2 per metre for 22mm

As a sanity check, one of your 10 m rolls will give roughly a single layer of coverage with no overlap for 10 m of 15mm pipe (The specified coverage will be more, of course.)