A roof valley is where two sloping roofs meet and rainwater is channelled downwards, usually into a gutter, but sometimes onto a lower section of roof. It should not be confused with a gully which is horizontal.

Roof valleys are prone to leaking, especially during heavy rain. How you repair this part of the roof will depend on what the valley is made from. Roof valleys can be constructed from the following materials:

• Lead
• Concrete or Clay tiles
• Fibreglass
• Steel
• Rubber

• Lead Stolen from roof Lead Stolen from roof
• Water damage to felt Water damage to felt
• Lead removed Lead removed
• Damage from Valley Leak Damage from Valley Leak
• Strip and install biger valley Strip and install biger valley
• Repoint after repairs Repoint after repairs
• Slates removed Slates removed
• Slipped slates in Valley Slipped slates in Valley
• Slipped vally slates Slipped vally slates
• Fiberglass Valley Fiberglass Valley
• New lead installed on slate roof New lead installed on slate roof
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http://www.safewayconstruction.co.uk/index.php/lead-valley?tmpl=component&print=1#sigProIdb0660c0705