When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds especially if the building is located in an area known for inclement weather.
Montara roof of house wind.
Place the plywood over the opening and mark each hole position on the outside wall.
Asphalt shingles are getting better all the time but the elements can still get the best of them.
Powerful winds rush through the airfoil wind tunnel and forcibly pull air through the open pipe which turns the turbine below the surface.
Nor easters hurricanes and even heavy winds can blow shingles off a roof leaving a house vulnerable to leaks.
In 0 16 120 1 128 3 132 11 153 1 60 6 771 1 78 1 91 5 95 10 rough opening height in 0 1 12 30 14 17 2 1 8 2.
Roofs in high wind regions areas that experience wind gusts greater than 90 mph according to fema are the most susceptible to this type of damage.
Weather underground provides local long range weather forecasts weatherreports maps tropical weather conditions for the montara area.
Drill four holes in the center area of the plywood to relieve pressure during a strong wind storm.
Drill holes 2 1 2 inches from the outside edge of the plywood at each corner and at 12 inch intervals.
In order for a structure to be sound and secure the foundation roof and walls must be strong and wind resistant.
The rooftop turbine fan is operating on a similar idea.
Roof mount 51 net free area sq.