How To Apply Metal Flashing Roof

By the end of step 7 every square inch of the roof should be covered in metal the entire perimeter protected with edge flashing and all the roof joints protected with flashing.

How to apply metal flashing roof.

It s very important to make sure that you grab the z channel that s below and make sure that you re in the outside leg of the z channel. If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch. While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Still up on the roof your next step is to make sure that all the edges are smooth and finished and that all panels are fully secured to the roof.

Place corner pieces where panels will meet bends at the edge of the roofing. Most flashing is 8 inches wide. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Drip edge metal valley flashing dormer chimney and kick out flashing shed water away from the connections between roofs walls chimneys and other building assemblies this collection of 18 articles animations and videos identifies the critical roof flashing areas illustrates durable roof flashing details and shows how to flash roofs.

Most flashing is made of galvanized metal but diy ers may prefer aluminum flashing because it s easier to bend. Galvanized metal or aluminum is considered the best to use for roof flashing. Open valleys have metal flashing to protect this critical area of the roof. With the end wall flashing in place i use stitch screws to attach it to the z trim and to the gable trim.

These problem areas include the edges of skylights and chimneys soil stacks vent fans and roof valleys as well as the intersection of the roof deck and dormer walls. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint. This is the metal trim similar to the eave flashing except that it is placed over joints in the roof where different sections meet. This should be used in valleys points where 2 sections less than 140 degrees meet and as end caps over the tops of 2 sides that meet.

Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. Flashing provides the extra protection these spots need.