Installation Of Step Flashing Behind Lap Siding

The roofing felt should be installed before you start tin.

Installation of step flashing behind lap siding.

Flashing behind butt joints is an effective low maintenance way to comply with building code and help protect against water intrusion. Cut step flashing pieces to be 10 in. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner. Install step flashing with minimum 4 inch 102 mm upper leg.

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 in most instances step flashing should be installed behind siding. Do not extend the siding or trim into the kick out flashing or gutter. Longer than the shingle s exposure.

Bend the 10 in. In certain instances flashing may need to be installed on the exterior of siding. Lift the bottom shingle and slip in the kickout flashing. Riley shows his way the only way how to install step flashing.

This allows each step flashing piece to overlap the piece below. Nail j channel for vinyl or metal siding onto the flashing. Install the step flashing before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof. Alternatively use j channel nails for vinyl.

Length to extend 5 in. Nail it to the sidewall or glue it if nailing isn t possible. Slip in the flashing. Nail the metal siding onto flashing by following siding manufacturer directions for material installation.

Install siding on the walls down to the flashing. Properly integrate flashing with the secondary water resistant barrier. A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint. It is a good idea to use a harness so that less hazard appears.

Riley explains its easy to do when it comes to new construction. Make sure that you remain cautious when you are on the roof. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Extra things to remember when installing step flashing.

This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted. Leave a 1 4 inch gap between the step flashing and wood siding or cement board. James hardie recommends 6 inch wide flashing that overlaps the course below by 1 inch. Riley says most roofers use.

Step flashings are quite often improperly installed on the exterior of siding. Use housewrap flashing tape z flashing or other items as needed to maintain the counterflashing principle. Wide and 2 in.