Proper Flashing At The Bottom Of Hardie Siding

Pinning of the butt joints is not intended to increase wind load values.

Proper flashing at the bottom of hardie siding.

Cover with cap flashing. James hardie recommends that a slip sheet joint flashing is installed behind each butt joint in the siding. Lift the bottom shingle and slip in the kickout flashing. Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not recommend caulking butt joints or the horizontal overlaps joint flashing 6 in.

2 run the l shaped flashing up under the bottom row of siding so that it tucks under the final. Slip in the flashing. Hardieplank siding with colorplus technology. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.

James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2. A 5 inch wide flashing will result in a 2 1 2 roof deck flange and 2 1 2 vertical wall flange. And shall be installed 3 8 in. Nail it to the sidewall or glue it if nailing isn t possible.

Likewise a 10 wide flashing will result in a 5 inch wide roof deck flange and a 5 inch vertical flange. From end and between 3 4 in. If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top. However the typical recommended width of step flashing ranges from 5 inches to 10 inches.

Dog ears will be cut on both sides approximately inch from the bottom and then folded to create a stop that will locate itself on the top of the underlying row of siding but not be so long that it will run into the nails that hold the siding of the row being flashed. Fold the roof side of the flashing down over the facing board along the roof.