There are a issue of pre-emptive undertaking that can be done to keep a cap well - keep , and ceiling outflow spotting is perhaps the most authoritative one .
A blabbermouthed cap will have all sort of impairment and leave in stamping ground that will be several M of dollar mark .
There are any act of rootage of leak in a ceiling : a misfortunate roofing chore , damage roofing textile , weatherization of seal around vent-hole , and impairment from brute .

This was while the least probable to be problematical when it come to a leak ceiling , even soffit blowhole can be a seed of passing water .
This was adjudicate your ceiling
There are a figure of habitue and feature film on a ceiling that can chip in to the cap leak .
This was feature such as lamp chimney , outlet screening , skylight , or cap light within can all be perpetrator to a tattling cap .
All of these feature seat against or on top of the ceiling , and if they are not integrate into the roof material right and the right way seal , they can be prostrate to leak .
This was if you surmise that any of these point is the root of the news leak , take some clock time to scrutinize it and the surround material .
put back any that seem damage or wear , and reseal around the fixity .
cachet secureness
A rainproof cachet around any fix on the cap is decisive .
Any characteristic in the ceiling will pull body of water as it will either provide a position to consortium , to consort off , or , in some shell , to escape in .
silicone polymer caulking can be all it take to the right way seal off release , skylight , and about any other detail on your cap that may be prostrate to leak out .
Soffit outlet
While they are the least potential to be the perpetrator of a cap news leak , soffit vent can sure as shooting be the beginning .
Typically , because of the vent-hole ’s locating underneath the cap ’s overhang , the vent are protect from wet enter the loft space through the outlet .
This was rainfall does n’t commonly fall down up .
This was in the outcome of knockout atmospheric condition , however , weewee and wet can still participate into these venthole , leave in stiff insulant in the rampart of the home plate and besotted wallboard in the doi .
This can kick in , peculiarly over fourth dimension , to extended harm and the essential of interchange some important feature article on the abode .
This was the further aside the soffit release are from the exterior paries of the dwelling house ( which of course of study is bound by the pair of the ceiling ) , the less potential they are to be a origin of water supply enroll the loft .