In message
,
RobertL writes

I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Crikey. That's more than I weigh!

Use a long handled garden draw hoe. One of your allotment holding
neighbours is bound to have one.

regards

--
Tim Lamb