I5 - Installation of Finished Floors - LT #2

Question 1

Why does ceramic flooring need an extra stiff sub floor?

Answer 1

Prevent cracking by providing solid support.

Question 2

How are the joints in the underlay offset from the joints in the subfloor?

Answer 2

Joints overlap subfloor joints length & widthwise 200 mm

Question 2

What is the preferred fastener for installing panel-type underlay?

Answer 2

1” long staples w/ a 1/4” crown.

Question 3

Why should the joints of the underlay to the subfloor?

Answer 3

Underlay will move at joints if not bonded to the subfloor. Imperfections will telegraph through the resilient flooring?

Question 4

How are sleepers fastened together?

Answer 4

Toenailed

Question 5

What amount of gap is left between the sleepers and the wall?

Answer 5

1/2”

Question 6

What is the second layout line squared to the first?

Answer 6

3-4-5 in largest form

Question 7

Where is a wood strip flooring started?

Answer 7

Parallel to the longest wall or direction of travel

Question 8

How much space is required for expansion when using strip flooring?

Answer 8

min. 1/2” against each wall.

Question 9

What should be done if installing wood flooring and the building is damp?

Answer 9

Heating & ventilate, dehumidify

Question 10

What special precautions should be taken with prefinished flooring materials?

Answer 10

Cover installed flooring with heavy cardboard that is held in place

Question 11

What is the base shoe used for?

Answer 11

Cover up the gap left for expansion and will flex easily to keep the shoe tight to the floor.

Question 12

How long should wood strip flooring be acclimatized to the job site conditions?

Answer 12

Minimum of 72 hours.

Question 13

How is the adhesive for wood tiles applied?

Answer 13

Spread with a notched trowel.

Question 14

How long should wood strip flooring be acclimatized to the job-site conditions?

Answer 14

Min. of 72 hours.

Question 15

When is it appropriate to sand wood flooring across the grain?

Answer 15

When the floor is installed very unlevel.

Question 16

Where is the nail placed when toenailing wood strip flooring?

Answer 16

Just above the tongue.

Question 17

List four factors that will affect the amount of waste in a flooring installation.

Answer 17

Angled walls, floor openings, quality of floors, patterns and skill of installer.

Question 18

Once the building has reached what humidity level should boxes of flooring be open?

Answer 18

9-13 %

Question 19

Rolled flooring products are best stored:

Answer 19

Standing up

Question 20

When selecting the type and installation of underlay:

Answer 20

Best to consult with the supplier and the installer of the floor, as it may effect warranty

Question 21

Wood flooring and carpet are often installed directly onto:

Answer 21

Plywood or OSB subfloor, no sleeper required unless on concrete slab.

Question 22

Resilient flooring requires underlay why?

Answer 22

Thin and any defects will telegraph through

Question 23

Standard underlay for resilient flooring is:

Answer 23

4x8’, 4x4’ sheets of 1/4” thick panel type material.

Question 24

Nails and screws for installing underlay are usually:

Answer 24

11mm 7/16” or thicker.

Thicker is underlay is often used to support ceramic tile.

Question 25

Nails & screws used to install underlay should be long enough to penetrate by no more:

Answer 25

Thickness of the subfloor

Question 26

Nails used to install underlay must be:

Answer 26

Ring nails or screw nails (ardox)

Question 27

Underlay used under resilient floor is usually:

Answer 27

6mm thick.

Question 28

Staples are used for:

Answer 28

Thin under layment

Question 29

All seams, fastener dimples and defects in the top of the surface of the underlay with floor patch compounds must be:

Answer 29

Sanded smooth.

Question 30

Sleepers are fastened by:

Answer 30

Adhesive or powder actuated fasteners.

Question 31

When laying out flooring, chalk the line:

Answer 31

1/2 wider than the first strip, allow for expansion

Question 32

When the direction of installing the wood strip flooring needs to be changed:

Answer 32

Spline is used to connect two flooring strips back to back

Question 33

The gap between the wall finish and the wood strip flooring is typically covered with:

Answer 33

Baseboard & base shoe.

Question 34

What is used for ceramic tile setting?

Answer 34

Thin set (Latex modified cement mortar) Applied to the subfloor or slab, the back of the tile is wetted and mortar is also applied.

Question 35

When installing Laminate over a concrete slab,

Answer 35

special grade moisture barrier foam may be required.