It is fine to use old laths and boards when working on a roof

When constructing a new building, you have to use laths marked T1

TOP 26 is a guide from the advisory committee of the timber industry which describes lathing

If you are working on a flat roof more than 5 metres high, railings must be set up to protect against falling

You can always replace other safety arrangements with a safety line

Ladders can be used as a work platform over a fairly long period of time

If you are working 5 metres above the ground on a roof where the base of the roof is 2 metres above the grounds, something to protect you from falling must always be set up at the base of the roof

Regardless of how high the roof is, the securing at the base is sufficient

If there are hazardous things (e.g. materials, sharp objects, etc.) that you could fall onto. You should first be prevented from falling when you are 2 m up

There must be instructions in Danish for use on all fall protection equipment