CFI Adhesives, Fasteners & Transition Systems

Question 1

What type of trowel notch is most commonly specified for applying full-spread adhesive for broadloom carpet installation?

Accepted Answer

1/16 inch x 1/16 inch V-notch

Answer

3/16 inch x 5/32 inch U-notch

Answer

1/4 inch x 1/4 inch square-notch

Answer

1/8 inch x 1/8 inch square-notch

Question 2

What is 'open time' in the context of flooring adhesives?

Accepted Answer

The period after application during which the adhesive can accept the flooring material

Answer

The time needed to cure after the floor is laid

Answer

The working temperature range

Answer

The manufacturer's recommended shelf life

Question 3

Which type of fastener is used to nail solid hardwood strip flooring to a wood subfloor with a pneumatic nailer?

Accepted Answer

Cleat nail or staple

Answer

Ring-shank screw

Answer

Smooth-shank brad nail

Answer

Concrete screw

Question 4

What is the purpose of a 'reducer' transition strip in flooring installations?

Accepted Answer

To transition between two floor surfaces of different heights

Answer

To cover expansion gaps only

Answer

To join two surfaces of identical height

Answer

To provide a threshold between interior and exterior spaces only

Question 5

What is the purpose of applying adhesive at a 'wet-set' for large-format tile installation?

Accepted Answer

To ensure full back coverage while the mortar is fresh and pliable

Answer

To speed up cure time

Answer

To prevent lippage only

Answer

To allow tiles to slide after setting

Question 6

Which adhesive type is most appropriate for installing LVT (luxury vinyl tile) in a high-moisture area like a commercial kitchen?

Accepted Answer

Pressure-sensitive or hard-set epoxy adhesive rated for wet areas

Answer

Standard latex carpet adhesive

Answer

Water-based wood flooring adhesive

Answer

Hot-melt adhesive