C33 Wallcovering Installation and Preparation

Question 1

What is the recommended minimum moisture content level for drywall before hanging wallcovering?

Accepted Answer

Below 4%

Answer

Below 8%

Answer

Below 12%

Answer

Below 16%

Question 2

Which type of wallcovering is rated Type II and is most suitable for high-traffic commercial applications?

Accepted Answer

Paper-backed vinyl weighing at least 13 oz per linear yard

Answer

Fabric-backed vinyl weighing at least 7 oz per linear yard

Answer

Foil wallcovering with a paper backing

Answer

Natural-fiber grasscloth with a cotton backing

Question 3

Before hanging wallcovering on new drywall, what surface treatment is most commonly required?

Accepted Answer

Apply an acrylic primer-sealer or sizing

Answer

Sand the drywall to 220-grit

Answer

Apply a coat of flat latex paint only

Answer

Wet the drywall surface with water

Question 4

When measuring and cutting wallcovering for a room, how much extra length is typically added to each strip for trimming?

Accepted Answer

4 to 6 inches total (2–3 inches top and bottom)

Answer

1 inch total

Answer

10 inches total

Answer

12 to 16 inches total

Question 5

Which adhesive type is most appropriate for hanging heavyweight commercial vinyl wallcovering?

Accepted Answer

Heavy-duty clear or universal vinyl adhesive

Answer

Wheat starch paste

Answer

Standard cellulose wallpaper paste

Answer

Contact cement

Question 6

When hanging the first strip of wallcovering in a room, what tool is used to ensure the strip is hung perfectly vertical?

Accepted Answer

Plumb bob or level

Answer

Chalk line only

Answer

Tape measure

Answer

T-square

Question 7

What is the primary purpose of 'booking' a pasted wallcovering strip?

Accepted Answer

To allow the adhesive to activate and the material to relax before hanging

Answer

To remove excess paste from the surface

Answer

To fold the strip for easier transport to the wall

Answer

To pre-cut the strip to the correct length