Because of the malleability of lead, these sheets can be shaped closely to awkward shapes, such as the junction of a sloping roof and a chimney, without the need for the sheet to be cut. Cuts in the sheet would create a potential leak site. Copper is also used for this purpose as it is also durable and malleable.
A number of factors increase the risk of developing grand mal seizures. Not all people with risk factors will get grand mal seizures. Risk factors for grand mal seizures include: 1  Family history of certain genetic conditions. 2  Family history of epilepsy. 3  Recent brain surgery. 4  Recent head injury. 5  Recent infection of the brain.
The onset of generalized tonic-clonic seizures could be caused by a variety of health conditions. Some of the more severe conditions include a brain tumor or a ruptured blood vessel in your brain, which can cause a stroke. A head injury could also trigger your brain to cause a seizure. Other potential triggers for a grand mal seizure could include: