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Drip edge is a type of roofing material that is designed to help protect the edges of a roof from water damage. Its purpose is to prevent water from seeping into the roofing material and causing damage to the underlying structure. Drip edge is typically made from metal, such as aluminum or galvanized steel, and is installed along the edges of the roof where the shingles or other roofing material meets the fascia board or gutter.
The main benefits of installing drip edge include:
- Directing water away from the roof: Drip edge helps to channel water away from the roof and into the gutters or downspouts, preventing water from collecting on the roof and causing damage.
- Protecting the roof decking: Without drip edge, water can seep under the roofing material and into the roof decking, causing it to rot and deteriorate over time.
- Preventing damage to the fascia board: Drip edge helps to protect the fascia board, which is the vertical board that runs along the edge of the roof, from water damage. This can help to extend the lifespan of the board and prevent costly repairs.
Overall, drip edge is an important component of a well-designed roofing system, as it helps to protect the roof from water damage and extend its lifespan.
General concepts
By advancing the c-pawn two squares, Black asserts control over the d4-square and begins the fight for the centre of the board. The move resembles 1…e5, the next most common response to 1.e4, in that respect. Unlike 1…e5, however, 1…c5 breaks the symmetry of the position, which strongly influences both players’ future actions. White, having pushed a kingside pawn, tends to hold the initiative on that side of the board. However, 1…c5 does little for Black’s development, unlike moves such as 1…e5, 1…g6, or 1…Nc6, which either develop a minor piece or prepare to do so. In many variations of the Sicilian, Black makes a number of further pawn moves in the opening (for example, …d6, …e6, …a6, and …b5). Consequently, White often obtains a substantial lead in development and dangerous attacking chances.
Meanwhile, advancing a queenside pawn has given Black a spatial advantage there and provides a basis for future operations on that flank. Often, Black’s c5-pawn is traded for White’s d4-pawn in the early stages of the game, granting Black a central pawn majority. The pawn trade also opens the c-file for Black, who can place a rook or queen on that file to support the queenside counterplay. In many variations, White castles queenside to exploit attacking chances on the kingside at the cost of moving his king to the flank where Black has a spatial advantage.[citation needed]
History
By advancing the c-pawn two squares, Black asserts control over the d4-square and begins the fight for the centre of the board. The move resembles 1…e5, the next most common response to 1.e4, in that respect. Unlike 1…e5, however, 1…c5 breaks the symmetry of the position, which strongly influences both players’ future actions. White, having pushed a kingside pawn, tends to hold the initiative on that side of the board. However, 1…c5 does little for Black’s development, unlike moves such as 1…e5, 1…g6, or 1…Nc6, which either develop a minor piece or prepare to do so. In many variations of the Sicilian, Black makes a number of further pawn moves in the opening (for example, …d6, …e6, …a6, and …b5). Consequently, White often obtains a substantial lead in development and dangerous attacking chances.
Meanwhile, advancing a queenside pawn has given Black a spatial advantage there and provides a basis for future operations on that flank. Often, Black’s c5-pawn is traded for White’s d4-pawn in the early stages of the game, granting Black a central pawn majority. The pawn trade also opens the c-file for Black, who can place a rook or queen on that file to support the queenside counterplay. In many variations, White castles queenside to exploit attacking chances on the kingside at the cost of moving his king to the flank where Black has a spatial advantage.[citation needed]