specs

Section 09950
Page 2
B. Apply using approved Adhesives or Construction Mastic as recommended by manufacturer's of the specific
products.
1. Adhesives and sealants: Provide low VOC products in compliance with California’s South Coast Air
Quality Management District (SCAQMD) #1168 identified in Section 01352.
PART 3 - EXECUTION
3.01 PREPARATION
A. Inspect the substrates before starting work and notify the Contractor in writing with copies to the Architect of
apparent conditions that will result in an inferior installation. Do not proceed with work until defects are
entirely corrected.
B. Installation of materials constitutes the acceptance of the substrates and defects in the finished installation shall
be corrected at the expense of the Contractor.
C. Do not proceed with soundfold work until acoustical insulation is in place.
3.02 INSTALLATION OF VINYL WALLCOVERINGS
A. Fill nicks, gauges and other minor imperfections of gypsum wallboard surfaces with latex filler, and smooth
flush with surface. Follow with primer coat of flat alkyd or oil base sealer recommended by wall covering
manufacturer. Color of sealer shall match color of wall covering.
B. Be certain pattern and color are as ordered.
C. Rolls are numbered. Hang in sequence starting with lowest number.
D. Adhesive and wall covering should be at room temperature (not less than 65º) at least 24 hours prior to and
during hanging. Temperature should be maintained until thoroughly dried.
E. Thoroughly kneed recommended paste. One gallon covers approximately 10-12 linear yards 54" of Type II of
III material and 20-25 yards of Type I. See detailed instructions on paste container.
F. Before cutting, examine pattern of color, correctness and uniformity.
G. Cut three strips to desired length and apply paste using roller or brush. Allow paste to soak into fabric backing
by folding strip and setting aside five to ten minutes before hanging.
H. Hang strips by reversing alternate strips (except on match patterns). The following methods seaming are
acceptable.
1. Pre trim and butt.
2. Overlap and double cut.
3. Overlap and cut using a seam cutter.
I. After installing three cuts, inspect for shading. If satisfactory, proceed with work. If not, and you are unable to
determine reason for shading, stop work and contact supplier. Each set of three cuts should be judged
acceptable before proceeding with the next.
J. Headers - Full widths of material should be applied for the most satisfactory installation. Headers can cause
shading problems.
K. Corners - Wrap wall covering 4" to 6" beyond inside or outside corners.
L. Use a flexible broad knife or still bristled brush to eliminate air pockets and secure wall covering to substrate.
M. Fill in over doors and windows with panels cut in consecutive order from the roll from which the original full
adjacent strips were cut.
N. Apply fabric secure, smooth, clean, and without wrinkles, gaps or overlaps. Eliminate air pockets and ensure
full bond to wall surface.
O. Horizontal seams are not acceptable.
P. Remove excess adhesive from each seam before proceeding with any further work. Wipe seam clean with dry
cloth towel. Wash seam (after wiping) with clear water until all adhesive is removed before proceeding to next
seam.
Q. Install wall covering before installation of casings, trim, bases, cabinets, hardware, etc.
3.03 INSTALLATION OF WALL CARPET
A. Surface Preparation
1. Remove all previous wallcovering
2. Surface protrusions and low spots should be sanded and filled so that the surface is clean, smooth and dry.
3. Wall previously painted with a high gloss enamel paint should be sanded so that the glossy finish is
removed.
4. Surface should be thoroughly sealed.
5. Use a quality wallcovering primer-sealer per architect's specification.
NAPA CENTURY CENTER XD 12
#165582