Installation Instructions

General Guidelines

•Sill-Chiseled can be used as a transition or border detail between Nichiha

products, as well as a window sill detail. Do not use Chiseled as a drip edge

above windows or doors.

• Sill-Chiseled must be installed on a minimum 7/16” plywood or OSB

sheathing over braced wood or steel stud (20 gauge or heavier)

construction spaced at a maximum of 24” o.c.

Installation

Sill-Chiseled as a Transition or Border

• Where Chiseled pieces butt together, moderate contact is appropriate. No

sealant is necessary at butt joints. Mitered corners must be applied using a

polyurethane adhesive to join miters together.

• Make certain all exposed edges are sealed with paint, primer, or sealant.

• When installing Nichiha panels or lap siding above Sill-Chiseled, the use of

a corrosion-resistant flashing is required. The flashing must be galvanized,

anodized, or PVC coated. Leave a ¼” gap above and below the flashing so

there is at least 1/2” between the siding and Sill-Chiseled. Do not caulk

this gap or use raw aluminum flashing.

Storage and HandlingSill-Chiseled

Sill-Chiseled Pieces