Installation Of Step Flashing Behind Lap Siding

Length to extend 5 in.

Installation of step flashing behind lap siding.

The roofing felt should be installed before you start tin. Do not extend the siding or trim into the kick out flashing or gutter. Install siding on the walls down to the flashing. Cover with cap flashing.

Make sure that you remain cautious when you are on the roof. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner. Longer than the shingle s exposure. This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Lift the bottom shingle and slip in the kickout flashing. Flashing behind butt joints is an effective low maintenance way to comply with building code and help protect against water intrusion. Leave a 1 4 inch gap between the step flashing and wood siding or cement board.

Nail j channel for vinyl or metal siding onto the flashing. Alternatively use j channel nails for vinyl. Nail the metal siding onto flashing by following siding manufacturer directions for material installation. James hardie recommends 6 inch wide flashing that overlaps the course below by 1 inch.

Riley explains its easy to do when it comes to new construction. 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. Use housewrap flashing tape z flashing or other items as needed to maintain the counterflashing principle. Cut step flashing pieces to be 10 in.

Extra things to remember when installing step flashing. Slip in the flashing. However some local building codes may require different size flashing. Riley shows his way the only way how to install step flashing.

However in most instances step flashing should be installed behind siding. Step flashings are quite often improperly installed on the exterior of siding. Nail it to the sidewall or glue it if nailing isn t possible. 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.

In certain instances flashing may need to be installed on the exterior of siding. Properly integrate flashing with the secondary water resistant barrier. Install step flashing with minimum 4 inch 102 mm upper leg. Wide and 2 in.

Riley says most roofers use. It is a good idea to use a harness so that less hazard appears. Bend the 10 in.