The difference between your 2 whirlybirds could be anything that affects those conditions.
Whirlybird roof vent not spinning.
Lubricating a really noisy whirlybird roof vent lubricated the bushing with wurth hhs2000 spray grease.
Step 2 examine the turbine from the exterior from the roof.
Ok i am 3 14in.
The turbines are adjustable so that the spinning part is level even though the roof is slanted.
Do whirlybird vents leak.
Wind turbines put in at the pick with a saddle base to fit the 5 12 roof pitch.
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These will not rust.
There s other vents to get air the roof from another place to the area where the hotter air is it s in a location were the hotter air builds up then the hot air in the roof can so push out of the whirlybird making it spin.
Working for years since no more noise.
The turbins do not turn much at all.
This is a brand new metal roof very expensive.
Game of life shall not be held liable for any improper or incorrect use.
There is noway to have soffits vents i ether have to put 5 6 12 14 in holes at ower end for intake.
In the event the turbine becomes damaged the whole vent will require replacing.
In addition pay attention to the maximum roof pitch that will work with the turbines.
If the vents are blocked by insulation boxes or other obstructions heat will not be able to escape through them and they will not spin.
Find the noisy turbine and apply the lubricant to the moving parts of the turbine.
Or put in a gable vent at one end large enough 24in x 48in.
Wich im not a fan of.
Not all turbines will fit all roof pitches.
Find roof turbine vents at lowe s today.
Given the position of the whirlybird on top of the roof removing foreign objects is no mean feat.
Place the stepladder under the attic access space.
Thanks now i have a two story brick building with 2 800 sq.
Both turbins are only about 4 years old.
Clear away any debris or insulation blocking the vents to re activate the spinning turbine.
I have sophits and gabel vents.
I have taken them off and oiled them and they spin freely and easily when spun with the hand.
The spinning capacity of the whirlybird will decrease if a foreign object finds its way through the vents and into the turbines.
The wind has to blow pretty hard for them to turn good.
Climb the ladder remove the access panel and enter the attic.