Roof Drip Edge Code

Most states in the u s.

Roof drip edge code.

Drip edges have been required by the international residential code since the 2012 revision. It must extend on the roof a minimum of two inches and down a minimum of 1 4. Florida building code on roof drip edge. Sometimes it is called drip metal d metal or t style.

Underlayment shall be installed over the drip edge along eaves and under the drip edge along rake edges. A drip edge must be provided up the gables on top of the underlayment. The metal shall overlap a minimum of 2 inches 51 mm and should be fastened with the appropriate fasteners every 12 inches 305 mm on center. This is the classic l shaped drip edge sometimes called l style.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. With fasteners as specified in section r905 2 5. Drip edges shall be mechanically fastened to the roof deck at not more than 12 inches 305 mm o c. Section r905 2 8 5 drip edge of the 2012 international residential code for one and two family dwellings state minimum standard residential code states.

Chimneys must be topped with a metal or stone cap that has a drip edge. This profile of drip edge is shaped like a t with a lower flange at the bottom. A drip edge shall be provided at eaves and gables of shingle roofs. This drip edge is bent to a 90 degree angle and has a lower flange at the bottom.

Adjacent pieces of drip edge shall be overlapped a minimum of 2 inches 51 mm. Have adopted the irc which means that drip edges are required for most buildings in those states. With fasteners as specified in section r905 2 5. In the state of florida the florida building code fbc which is applicable to commercial construction and the florida building code residential fbc r which is applicable to one and two family dwellings provide options for the installation of the drip edge.

It must be nailed 12 o c. The code specifically states that the drip edge shall extend a minimum of 1 4 inch 6 4 mm down the eave and a minimum of 2 inches 51 mm over the deck. Drip edges shall extend not less than 1 4 inch 6 4 mm below the roof sheathing and extend up back onto the roof deck not less than 2 inches 51 mm. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures.