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.
Epilepsy, sleep disorders, brain injury, trauma, sudden stroke and side effects of medicines are common reason that can trigger seizure attack in a human body. Emotional stress and lack of sleep have also been seen as common causes that can trigger grand mal seizure or generalized seizure attacks. For people suffering with epilepsy, sleep disorders are an additional health disorder that accompanies them.