When the weather warms up the frost will become water droplets and evaporate harmlessly.
Frost on roof in attic.
Depending on the temperature and the insolation ie.
A well ventilated home is drier healthier and more comfortable.
A patch of frost here and there on the tips of roofing nails poking through the sheathing for instance probably isn t a cause for alarm.
Mold mildew or rot can occur.
When warm air from inside the house escapes traveling up through the bypasses the moisture condenses on the roof boards and rafters where the frost can form.
Well placed windows doors and other openings allow air to circulate without creating.
Left unchecked frost in an attic can lead to serious mold and decay.
When the moisture gets into the attic it condenses on the roof sheathing in the form of frost.
Ice frost and other condensation need to be removed from your attic.
Frost and ice forms in attics when warm humid air accumulates and condenses on the underside of your roof sheathing.
Exhaust them with turbine vents.
About california ventilation building codes.
Can sun get to the roof you will have either frost or water collecting.