|
|
 |
 |
Design and Application Details
 The instructions given here are not meant to supercede local code requirements. Check with your local building official for their preference in your area.
Preparation - Be sure that the walls are smooth, without protuberances. Nail ends or points should be removed or pounded flush.
Underlayment - The CSSB recommends Type 30 felt under-
layment (also known as #30 bituminous impregnated building paper). Check with your local building official for any questions about alternative underlayment materials. Apply it horizontally, with a staple gun, starting at the base of the wall, with a 2" horizontal overlap with each succeeding course, and a 6" overlap vertically when starting a new roll. Wrap the Type 30 felt underlayment 4" each way around both inside and outside corners.
Corner Boards - Install corner boards (Figure 8) at this time.
Flashing - Flashings associated with doors, windows, and penetration details should be in accordance with good building practice.
Laying Out - Determine the number of Certi-label™ courses by measuring the height of the wall at the lowest part of the foundation, from a point 1" below the top of the foundation, to the top of the wall. Divide the height into equal parts, corresponding closely to the weather exposure, but not exceeding the maximum weather exposure recommended. Transfer this measurement and the number of Certi-label™ courses to a storypole (Figure 1), to lay out courses on all other walls. Whenever possible butt lines should align with tops or bottoms of windows or other openings, and for appearance the exposure of the final course at the top should match those below.
Certi-label™ Western Cedar shingle and shake size, exposure, width of joints, width of product, kiln versus air-drying process, moisture content and the local environment will all affect the expansion/contraction of Certi-label™ Western Cedar sidewall products. consideration when determining the installation details and adequate spacing needed for your specific project. Consult with your Approved Installer and refer to Figure 2: Spacing Detail.
 |
Figure 2: Spacing Detail
|
 |
Figures 3a and 3b |
|
|
|
