This type of roofing material is classified based on windspeed resistance and with wind ratings categorized as follows.
Maximum wind speed for roof work.
They expect principals employers and contractors with staff working on roofs to actively manage any potential for falls.
Discuss max wind speed on roof.
30 miles per hour if the work involves material handling as meeting.
A risk of a person falling more than two metres1 demolition of an element of a structure that is load bearing or otherwise related to the physical integrity of the structure like bracing on a roof.
Consumers can check individual ul listings usually present on the product packaging to findout the wind velocity resistance of individual brands.
Ul s test method ans ul 2390 has found the wind resistance of asphalt shingles with sealed tabs to be between60 to 150 mph.
There is no maximum height for using a ladder.
This criteria unless the employer takes precautions to protect.
A fall from height is the most serious hazard associated with roof work.
Health administration normally considers winds exceeding 64 4.
Do not consider going on any roof in poor weather conditions such as rain ice frost or strong.
Should cease when the roof level mean wind speeds reaches 17 mph gusting to 26 mph or over.
Note that the load on a 2 4 m x 1 2 m.
Construction work on roofs is high risk construction work when it involves for example.
Employees from the hazardous effects of the wind.
At a height above the work.
We ll happily work on the roof in higher winds than we d risk actually moving panels about in as the panels act as sails and i ve no problem in pulling my team off the panel side of the work if it s too.
When does work on roofs become high risk construction work.
Jun 8 2012 1.
Preventing falls from roofs is a priority for worksafe new zealand.
Kilometers per hour 40 miles per hour or 48 3 kilometers per hour.
Some metal roofing can withstand wind speeds of more than 150 mph.
See health and safety in roof work or the national federation of roofing contractors website or the advisory committee for roof safety.