Health and safety inspector Tony Mitchell said Mr Langford was experienced in this type of work and he used a crawling board to get around the roof.
Although he used a crawling board, there was no evidence of any other safety measures in place, such as a guard rail.
He did not have any safety equipment but had a crawling board
which could reach three quarters of the way up the roof.
He said Mr Langford did not have any safety equipment but he had a crawling board
which could be used to reach three quarters of the way up the roof.
Following a fatal accident inquiry, the sheriff said the 68-year-old may not have died if he had used crawling boards
on the roof or if there had been straw bales on the ground to break a fall.
Mold Magistrates' Court heard the company had not provided enough crawling boards
, which meant employees had to step from joist to carry out the work.
Alfred Scott, of Cherry Cottage, Great Whittington, asked Mr Duddin to use crawling boards
to do the job safely, but the court heard his inability to ensure Jamie followed his instructions contributed to the accident.
It was claimed a risk assessment of the job would have identified the need for scaffolding and crawling boards
Mr Williams said before they set off to carry out the work, Wood had warned them to make sure they used crawling boards
to move across the roof.
Mr Ageros said: "Mr Williams said he expressed concerns to Mr Duddin about the condition of the roof and he went off to get the crawling boards