Weatherproofing is unarguably the trickiest part of the construction of your house. In order to properly weatherproof your house, precise craftsmanship and engineering must be involved. It is so involved that the local Building Department developed specific codes that are required to be followed by all roofers.
When looking at the design of your roof, you may notice that there are many angles and intersections. In Between these intersections are areas where structural material, such as wooden panels, that create an anglewhere there is inevitable space between. Because of the nature of the design, this is also the area that can be most susceptible to collecting a lot of precipitation, leaves, dirt and debris from trees.
Examples of the most sensitive areas in your roof are:
• Eves are the end part of your roof where your roof ends. These need drip edge support consisting of aluminum metal around edge. Felt paper goes over the plywood once drip edge is installed around eves.
• Rakes need drip edge support consisting of aluminum metal around edge, each one made specifically to fit each particular area. This drip edge further protects the vulnerable parts of the wood.
• Dormers– the structure (walls and roof) around a window that projects from a sloped roof. This part of the roof usually requires several types of flashing including tar and aluminum. It is an integral part of your roof mainly because of the weatherization that is caused by the architectural shape. Step flashing is usually necessary but is situation specific.
• Valleys – internal angles formed when by the intersection of two sloping roof planes. The intersection of a cross hip or cross gable roof.