Chapter 16: Finishes Flashcards
What is strip wood flooring?
Consists of thin strips from 3/8” to 25/32” thick of varying lengths with tongue and groove edges. Most strip flooring is 1 1/2”-2 1/4” wide.
What is plank wood flooring?
Comes in the same thickness as strip but is 3 1/4”-8” wide.
What is block wood flooring?
Made of preassembled wood flooring in three basic configurations.
What is unit block wood flooring?
Standard strip flooring assembled into a unit held together with steel or wood splines.
What is laminated block wood flooring?
Made from 3-7 plies of cross-laminated wood veneer.
What is parquet wood flooring?
Made of preassembled units of several small, thin slats of wood in a variety of patterns.
What is end-grain block wood flooring?
Solid pieces of wood from 2 1/4”-4” thick laid on end. Very durable and resistant to oils, mild chemicals, and indentation.
What types of wood species are considered sustainable products?
Bamboo - which is actually a grass; milled with tongue and groove edges; almost as hard and twice as stable as oak/maple
Palm wood - by-product from plantation-grown coconut palms; hard and more stable than maple, red oak, and white oak.
How are wood floors installed?
Method 1 - Plywood is attached to the concrete to provide a nailable base. A layer of polyethylene film is laid down first if moisture may be a problem.
Method 2 - Wood flooring is laid on wood sleepers. Give a more resilient floor that is more comfortable underfoot, but it also provides an air space so any excess moisture can escape.
In both instances a gap is left at the perimeter to allow for expansion and is concealed with the wood base.
A layer of #15 asphalt felt may be laid to prevent squeaking and act as a vapor barrier.
What is engineered wood flooring?
Consists of three, five, seven layers of wood veneer, each oriented at 90 degrees to the adjacent ones, like plywood. The top layer is the actual finished wood species. More dimensionally solid.
Describe granite stone.
Igneous rock with visible grain. Polished, honed, fine-rubbed, rubbed, flame finishes are possible.
Describe marble stone.
Metamorphic rock formed by layers of shells that, under heat and pressure, form into a composition of crystalline grains of calcite and/or dolomite. Polished, honed, abrasive, wet-sand finish.
Describe limestone.
Most commonly used in exterior surfaces. Travertine is used indoors, light creamy color, holes that need to be filled with resin.
Describe slate.
Fine-grain metamorphic rock that is easily split into thin slabs, making it ideal for flooring as well as roofing. A natural cleft finish shows the surface as it is cleaved from the rock.
Describe sandstone.
Sedimentary rock made of sand and other substances.
Describe stone flooring installation
Thin-set installation - Uniform thickness of stone is set on the subfloor with a special thin-set mortar. Less expensive, adds less weight to the floor, faster to install.
Thick-set installation - Requires that a layer of mortar from 3/4”-1 1/4” thick to be applied to a suitably prepared, structurally sound subfloor. Generally best approach and must be used when the subfloor is uneven or when the stone varies in thickness.
How is a cleavage membrane used in thick-set stone flooring installation?
Used with steel reinforcing mesh in the mortar bed, this method allows the finish floor to be structurally separate from the subfloor. If the subfloor deflects or moves slightly, the stone flooring is protected from cracking because it is not bonded to the structural floor.
What is terrazzo?
Composite material poured in place or precast that is used for floors, walls, and stairs.
What are the advantages of terrazzo?
Durability, water resistance, ease of cleaning, fire resistance, and the availability of a wide choice of patterns and colors.
How is terrazzo installed?
The sand cushion method is best to avoid cracking because the finish system is physically separated from the structural slab with a membrane. Finished to a smooth surface.
What is resilient flooring?
Generic term describing several types of composition materials made from various resins, fibers, plasticizers, and fillers. It is formed under heat and pressure to produce a thin material, either sheets or tiles. Applied with mastic to a subfloor of concrete, plywood, or smooth underlayment.
What is vinyl flooring?
Includes tiles and sheet vinyl, resistant to indentation, abrasion, grease, water, alkalis, and some acids. Inexpensive, installed below or above grade.
What is rubber flooring?
Made from synthetic rubber and offers excellent resistance to deformation under loads, providing a very comfortable, quiet, resilient floor. Not resistant to oils and grease.
What is cork flooring?
Made from granulated pieces of bark from the cork oak tree that are bonded together under heat and pressure. Renewable resource.
What is linoleum?
Composed of oxidized linseed oil, wood flour, pigments, and fillers applied over a backing of burlap or asphalt-saturated felt.
What is the maximum limit for moisture emission of concrete?
3.0 lb/1000 ft2/24 hr when exposed to a 73 degree temperature and 50% relative humidity
How do you test for the moisture emission of concrete?
There are various methods but the idea is to place a box or device over the concrete and to test how it traps excess moisture.