How Do You Flash Hardie Siding

James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.

How do you flash hardie siding.

This video will outline the basics of installing james hardie s fiber cement products. Learn how to install hardiepanel vertical siding products. Hardie siding problems a k a. Do not caulk clearance and flashing requirements hardiepanel vertical siding hs1237 p2 3 09 19 figure 10 sheltered areas figure 11 mortar masonry min.

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. Fiber cement is a siding material that was first introduced in the 1980 s as a replacement for asbestos cement wood aluminum and vinyl siding products. During my time working for james hardie i very rarely got calls from homeowners that wanted to submit a warranty claim for their hardie siding. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc.

If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this. Hardie siding requires a minimum 2 gap from all hard surfaces like decks or rooflines and at least 8 from any soft surfaces like grass dirt or gravel. If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing. However in most instances step flashing should be installed behind siding.

Flashing behind butt joints is an effective low maintenance way to comply with building code and help protect against water intrusion. James hardie recommends 6 inch wide flashing that overlaps the course below by 1 inch. Out from the fascia when gutters are present as required by irc code min 4 in. In certain instances flashing may need to be installed on the exterior of siding.

Do not caulk extend shingles at least 1 in. Fiber cement problems are rare but do happen from time to time. Problems with hardie siding. How do i flash the siding butt joints.