Solar panel instalation. Check your tile roof waterproofing after solar installation.
Under tile membrane is there to stop storm water entering your home. When wind blows in an unnatural gravitational direction storm water enters in-between the roof tiles overlap. This under tile membrane picks up this storm water and delivers it to the roof's edge where it makes daylight to the exterior of the house walls. Most building construction ends this membrane on top of the exterior house walls where it finds its way inside. see our websites: https://flatroofwaterproofing.co.za