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.
Grand mal seizures often cause a dog's jaw muscles to tighten, which causes their teeth to chatter. While such seizures are obvious to dog owners, focal motor seizures can also cause chattering. These seizures are less severe than grand mal seizures; they are often brief and cause only minor symptoms.