I5 - Installation of Finished Floors - LT #2 Flashcards
Why does ceramic flooring need an extra stiff sub floor?
Prevent cracking by providing solid support.
How are the joints in the underlay offset from the joints in the subfloor?
Joints overlap subfloor joints length & widthwise 200 mm
What is the preferred fastener for installing panel-type underlay?
1” long staples w/ a 1/4” crown.
Why should the joints of the underlay to the subfloor?
Underlay will move at joints if not bonded to the subfloor. Imperfections will telegraph through the resilient flooring?
How are sleepers fastened together?
Toenailed
What amount of gap is left between the sleepers and the wall?
1/2”
What is the second layout line squared to the first?
3-4-5 in largest form
Where is a wood strip flooring started?
Parallel to the longest wall or direction of travel
How much space is required for expansion when using strip flooring?
min. 1/2” against each wall.
What should be done if installing wood flooring and the building is damp?
Heating & ventilate, dehumidify
What special precautions should be taken with prefinished flooring materials?
Cover installed flooring with heavy cardboard that is held in place
What is the base shoe used for?
Cover up the gap left for expansion and will flex easily to keep the shoe tight to the floor.
How long should wood strip flooring be acclimatized to the job site conditions?
Minimum of 72 hours.
How is the adhesive for wood tiles applied?
Spread with a notched trowel.
How long should wood strip flooring be acclimatized to the job-site conditions?
Min. of 72 hours.
When is it appropriate to sand wood flooring across the grain?
When the floor is installed very unlevel.
Where is the nail placed when toenailing wood strip flooring?
Just above the tongue.
List four factors that will affect the amount of waste in a flooring installation.
Angled walls, floor openings, quality of floors, patterns and skill of installer.
Once the building has reached what humidity level should boxes of flooring be open?
9-13 %
Rolled flooring products are best stored:
Standing up
When selecting the type and installation of underlay:
Best to consult with the supplier and the installer of the floor, as it may effect warranty
Wood flooring and carpet are often installed directly onto:
Plywood or OSB subfloor, no sleeper required unless on concrete slab.
Resilient flooring requires underlay why?
Thin and any defects will telegraph through
Standard underlay for resilient flooring is:
4x8’, 4x4’ sheets of 1/4” thick panel type material.
