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.

Installation of step flashing behind lap siding.

This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted. Nail the metal siding onto flashing by following siding manufacturer directions for material installation. Step flashings are quite often improperly installed on the exterior of siding. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.

Do not extend the siding or trim into the kick out flashing or gutter. It is a good idea to use a harness so that less hazard appears. Alternatively use j channel nails for vinyl. Wide and 2 in.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Longer than the shingle s exposure. Cut step flashing pieces to be 10 in. However in most instances step flashing should be installed behind siding.

Use housewrap flashing tape z flashing or other items as needed to maintain the counterflashing principle. James hardie recommends 6 inch wide flashing that overlaps the course below by 1 inch. 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. Slip in the flashing.

Properly integrate flashing with the secondary water resistant barrier. Lift the bottom shingle and slip in the kickout flashing. Riley says most roofers use. In certain instances flashing may need to be installed on the exterior of siding.

Leave a 1 4 inch gap between the step flashing and wood siding or cement board. Install step flashing with minimum 4 inch 102 mm upper leg. Bend the 10 in. Nail j channel for vinyl or metal siding onto the flashing.

Nail it to the sidewall or glue it if nailing isn t possible. Length to extend 5 in. However some local building codes may require different size flashing. Riley explains its easy to do when it comes to new construction.

This allows each step flashing piece to overlap the piece below. Make sure that you leave a quarter of an inch gap between cement board or wood siding and step flashing. Riley shows his way the only way how to install step flashing. The roofing felt should be installed before you start tin.

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. Extra things to remember when installing step flashing. Cover with cap flashing.