 | The examples and perspective in this article or section may not represent a worldwide view of the subject.
Please improve this article or discuss the issue on the talk page. | - For the musical group "Drywall," see Drywall (musical project)
 Example of drywall with joint compound, the common interior building material. (This photo shows drywall hung vertically.) Drywall, also commonly known as gypsum board, plasterboard (UK, Ireland, Australia), Gibraltar board or gib (New Zealand - GIB being a trademark of Winstone Wallboards), rock lath, sheetrock (a trademark of United States Gypsum Company[1]), gyprock (Canada and Australia - likely a portmanteau of "gypsum board" and "sheetrock"), or rigips (Germany and Eastern Europe - after the Rigips brand) is a common manufactured building material used globally for the finish construction of interior walls and ceilings. Image File history File links Gnome-globe. ...
Drywall is a musical project of Los Angeles singer-songwriter Stan Ridgway, which he has variously described as an electro/experimental noise combo, a mad apocalyptic project, and an experiment in terror, a collection of rants, laments and media overload. ...
Self-owned, released to PD I, the creator of this image, hereby release it into the public domain. ...
Self-owned, released to PD I, the creator of this image, hereby release it into the public domain. ...
Joint compound is a white substance similar to plaster used to seal joints between sheets of drywall, primarily in building construction. ...
Categories: Companies traded on NYSE | Corporation stubs | Fortune 500 companies | Companies based in Illinois ...
This article is about blends. ...
// Building material is any material which is used for a construction purpose. ...
A drywall panel is made of a paper liner wrapped around an inner core made primarily from gypsum plaster, the semi-hydrous form of calcium sulphate (CaSO4.½ H2O). The raw gypsum (mined or FGD) must be calcined before use. Flash calciners typically use natural gas today. The plaster is mixed with fiber (typically paper and/or fiberglass), foaming agent, various additives that increase mildew and fire resistance, and water and is then formed by sandwiching a core of wet gypsum between two sheets of heavy paper or fiberglass mats. When the core sets and is dried in a large drying chamber, the sandwich becomes rigid and strong enough for use as a building material. It has been suggested that Selenite be merged into this article or section. ...
This article is about the building material. ...
Hydrates are compounds formed by the union of water with some other substance, generally forming a neutral body, as certain crystallized salts. ...
Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. Chemical structure Gypsum from New South Wales, Australia Heating gypsum above approximately 150°C (302°F) partially dehydrates the mineral, by driving off exactly 75% of the water contained in its chemical structure. ...
Bundle of fiberglass Fiberglass (also called fibreglass and glass fibre) is material made from extremely fine fibers of glass. ...
A foaming agent is a material that will decompose to release a gas under certain conditions (typically high temperature), which can be used to turn a liquid into a foam. ...
Mildew is a grey, mold-like growth caused by one of two different types of micro-organisms. ...
Specifications (USA and Canada) Drywall is typically available in 4 ft (1219 mm) wide sheets of various lengths. Newly formed sheets are cut from a belt, the result of a continuous manufacturing process. In some commercial applications, sheets up to 16 ft are used. Larger sheets make for faster installation, since they reduce the number of joints that must be finished. Often, a sizable quantity of any custom length may be ordered, from factories, to exactly fit ceiling-to-floor on a large project.
The most commonly used drywall is one-half-inch thick but can range from one quarter (6.35 mm) to one inch (25 mm). For soundproofing or fire resistance, two layers of drywall are sometimes laid at right angles to each other. In North America, five-eighths-inch-thick drywall with a one-hour fire-resistance rating is often used where fire resistance is desired.
Drywall provides a thermal resistance R-value of 0.32 for three-eighths-inch board, 0.45 for half inch, 0.56 for five-eighths inch and 0.83 for one-inch board. In addition to increased R-value, thicker drywall has a higher sound transmission class. R-value is a term predominantly used in the building industry to rate the insulative properties of construction materials and building assemblies. ...
Sound Transmission Class (or STC) is an integer-number rating of how well a building partition isolates airborne sound. ...
Construction techniques
 Drywall is delivered to a building site on a flatbed truck and unloaded with a forked material handler crane. The bulk drywall sheets are directly to upper floors via a window or exterior doorway. As opposed to a week-long plaster application, an entire house can be drywalled in one or two days by two experienced drywallers, and drywall is easy enough to use that it can be installed by many amateur home carpenters. In large-scale commercial construction, the work of installing and finishing drywall is often split between the drywall mechanics, or hangers, who install the wallboard, and the tapers and mudman, or float crew, who finish the joints and cover the nailheads with drywall compound. Image File history File linksMetadata Download high-resolution version (889x657, 280 KB)[edit] Summary A flatbed truck with material handler unloading drywall. ...
Image File history File linksMetadata Download high-resolution version (889x657, 280 KB)[edit] Summary A flatbed truck with material handler unloading drywall. ...
This article is about the building material. ...
A Drywall Mechanic is a carpenter who specializes in the installation of drywall. ...
A Drywall Mechanic is a carpenter who specializes in the installation of drywall. ...
Drywall is cut to size, using a large T-square, by scoring the paper on the front side (usually white) with a utility knife, breaking the sheet along the cut, scoring the paper backing, and finally breaking the sheet in the opposite direction. Small features such as holes for outlets and light switches are usually cut using a keyhole saw or a small high-speed bit in a rotary tool. Drywall is then fixed to the wall structure with nails, or more commonly in recent years, the now-ubiquitous drywall screws. A T-square is a technical drawing instrument primarily a guide for drawing horizontal lines on a drafting table. ...
a Stanley 99E fully retracted A utility knife (also called a box cutter, a razor blade knife, a carpet knife, or a stationery knife) is a common tool used in various trades and crafts for a variety of purposes. ...
A keyhole (jab) saw used in a drywall cutting application. ...
A brick wall A wall is a usually solid structure that defines and sometimes protects an area. ...
A pile of nails. ...
Screws come in a variety of shapes and sizes for different purposes. ...
Drywall fasteners, also referred to as drywall clips or stops, are gaining popularity in both residential and commercial construction. Drywall fasteners are used for supporting interior drywall corners and replacing the non-structural wood or metal blocking that traditionally was used to install drywall. Their function serves to save on material and labor expenses; to minimize call backs due to truss uplift; to increase energy efficiency; and to make plumbing and electrical installation simpler. Many green building and energy efficiency models suggest using drywall fasteners to conserve the environment and save energy, including the U.S. Dept. of Energy.
Drywall screws have a curved, bugle-shaped top, allowing them to self-pilot and install rapidly without punching through the paper cover. These screws are set slightly into the drywall. When drywall is hung on wood framing, screws having an acute point and widely spaced threads are used. When drywall is hung on light-gauge steel framing, screws having an acute point and finely spaced threads are used. If the steel framing is heavier than 20-gauge, self-tapping screws with finely spaced threads must be used. In some applications, the drywall may be attached to the wall with adhesives. It has been suggested that this article or section be merged into Platform framing. ...
This page is a candidate to be moved to Wiktionary. ...
For the band, see Adhesive (band). ...
After the sheets are secured to the wall studs or ceiling joists, the seams between drywall sheets are concealed using joint tape and several layers of joint compound (sometimes called "mud"). This compound is also applied to any screw holes or defects. The compound is allowed to air dry then typically sanded smooth before painting. Alternatively, for a better finish, the entire wall may be given a skim coat, a thin layer (about 1 mm or 1/16 inch) of finishing compound, to minimize the visual differences between the paper and mudded areas after painting. Platform framing is a light-frame construction system and the most common method of constructing the frame for houses and small apartment buildings as well as some small commercial buildings in Canada and the United States. ...
A joist, in architecture and engineering, is one of the supporting bars that run from wall to wall to support a ceiling (or floor). ...
Joint compound is a white substance similar to plaster used to seal joints between sheets of drywall, primarily in building construction. ...
Another similar skim coating is always done in a process called veneer plastering, although it is done slightly thicker (about 2 mm or 1/8 inch). Veneering uses a slightly different specialized setting compound ("finish plaster") that contains gypsum and lime putty. For this application blueboard is used which has special treated paper to accelerate the setting of the gypsum plaster component. This setting has far less shrinkage than the air-dry compounds normally used in drywall, so it only requires one coat. Blueboard also has square edges rather than the tapered-edge drywall boards. The tapered drywall boards are used to countersink the tape in taped jointing whereas the tape in veneer plastering is buried beneath a level surface. One coat veneer plaster over dry board is an intermediate style step between full multi-coat "wet" plaster and the limited joint-treatment-only given "dry" wall. It has been suggested that Selenite be merged into this article or section. ...
PuTTY is a free software SSH, Telnet, rlogin, and raw TCP client. ...
 Electric screw gun used to drive drywall screws ImageMetadata File history File links Download high resolution version (1585x1273, 251 KB) Picture of drywall screwgun (electric screwdriver) taken 18 September, 2005 by Luigi Zanasi (myself) on my workbench using a Olympus digital camera. ...
ImageMetadata File history File links Download high resolution version (1585x1273, 251 KB) Picture of drywall screwgun (electric screwdriver) taken 18 September, 2005 by Luigi Zanasi (myself) on my workbench using a Olympus digital camera. ...
History The name drywall derives from its replacement of the lath-and-plaster wall-building method, in which wet plaster was spread over small, wooden formers. In 1916, the United States Gypsum Company invented a 4' x 8'ft sheet of gypsum pressed between sheets of extremely strong paper, which they called "Sheetrock." Despite extensive use at the Chicago World's Fair in 1933–34, it was generally seen as an inferior alternative to plaster-and -lath, and was not quickly adopted. It was adopted during World War II, when the war effort made labor expensive. It was reintroduced in 1952, impelled by the migration to the suburbs of the 1950s and by the cheaper construction methods it allowed.[2] Lath seen from the back with brown coat oozing through Lath and plaster is a building process used mainly for interior walls in the United States until the late 1950s. ...
This article is about the building material. ...
USG Corporation (NYSE: USG), also known as United States Gypsum Corporation, is a Fortune 500 (rank 420 in 2006) company that manufactures construction materials. ...
A 1933 Century of Progress worlds fair poster The Century of Progress International Exposition was a Worlds Fair held in Chicago, Illinois from 1933-1934 to celebrate Chicagos centennial. ...
Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki TÅjÅ Casualties Military dead: 17,000,000 Civilian dead: 33,000...
Fire resistance When used as a component in fire barriers, drywall is a passive fire protection item, subject to stringent bounding. In its natural state, gypsum contains the water of crystallisation bound in the form of hydrates. When exposed to heat or fire, this water is vapourised, retarding heat transfer. Therefore, a fire in one room, which is separated from an adjacent room by a fire-resistance rated drywall assembly, will not cause this adjacent room to get any warmer than the boiling point (100°C) until the water in the gypsum is gone. This makes drywall an ablative material because as the hydrates sublime, a crumbly dust is left behind, which, along with the paper, is sacrificial. Generally, the more layers of Type X drywall one adds, the more one increases the fire-resistance of the assembly, be it horizontal or vertical. Evidence of this can be found both in publicly available design catalogues on the topic, as well as common certification listings. "Type X" drywall is formulated by adding glass fibers to the gypsum, to increase the resistance to fires, especially once the hydrates are spent, which leaves the gypsum in powder form. Type X is typically the material chosen to construct walls and ceilings that are required to have a fire-resistance rating. Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent [1] cable coating. ...
To meet Wikipedias quality standards, this article or section may require cleanup. ...
Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ...
Hydrate is a term which means different things in inorganic chemistry and organic chemistry. ...
For other uses, see Heat (disambiguation) In physics, heat, symbolized by Q, is energy transferred from one body or system to another due to a difference in temperature. ...
For other uses, see Fire (disambiguation). ...
Ablation is defined as the removal of material from the surface of an object by vaporization, chipping, or other erosive processes. ...
A typical fire problem: the measures taken by the plumbers and the drywallers are at cross-purposes. Image File history File links Drywall_firestop_problem1. ...
Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent [1] cable coating. ...
| Another example: this steel sleeve, a penetrant itself, causes more problems than it solves. Image File history File links Drywall_firestop_problem2. ...
For other uses, see Steel (disambiguation). ...
Steel sleeve used to create a pipe penetration, with uneven rockwool packing, making an incomplete, unbounded firestop. ...
A penetrant is the cause for a service penetration firestop. ...
| Penetrants have been punched and burned through drywall, compromising its integrity. Image File history File links Drywall_firestop_problem3. ...
A penetrant is the cause for a service penetration firestop. ...
| Mechanical shaft with compromised fire-resistance rating through pipe installation. Image File history File links Size of this preview: 800 × 521 pixelsFull resolution (3477 × 2265 pixel, file size: 650 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Drywall ...
| Finished, painted, fire-resistance rated drywall assembly. A common deficiency: Lift ceiling tiles and find electrical and mechanical service penetrations without a firestop. Image File history File links Size of this preview: 800 × 531 pixelsFull resolution (3482 × 2312 pixel, file size: 634 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
In mathematics, a deficient number or defective number is a number n for which σ(n) < 2n. ...
| Improper drywall and absent firestops at Cambrian College, Greater Sudbury, Ontario, Canada. Image File history File links Size of this preview: 461 × 599 pixelsFull resolution (1854 × 2408 pixel, file size: 441 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Firestop after fire exposure during fire test in Tulsa, Oklahoma. ...
Cambrian College is a College of Applied Arts and Technology in Greater Sudbury, Ontario. ...
Nickname: Motto: Aedificemus (Latin for Come, let us build together) Coordinates: , Country Province Established 1893 (as Sudbury) 2001 (as Greater Sudbury) Government - Mayor John Rodriguez - Governing Body Greater Sudbury City Council - MPs Raymond Bonin (LPC), Diane Marleau (LPC) - MPPs Rick Bartolucci (OLP), Shelley Martel (NDP) Area - City 3,200 km...
Motto: Ut Incepit Fidelis Sic Permanet (Latin: Loyal she began, loyal she remains) Capital Toronto Largest city Toronto Official languages English (de facto) Government - Lieutenant-Governor David C. Onley - Premier Dalton McGuinty (Liberal) Federal representation in Canadian Parliament - House seats 106 - Senate seats 24 Confederation July 1, 1867 (1st) Area...
| Improper Firestop and Fireproofing interface, August 2000, Cambrian College, Greater Sudbury, Ontario, Canada. Image File history File links Size of this preview: 800 × 494 pixelsFull resolution (3441 × 2126 pixel, file size: 1,012 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Firestop after fire exposure during fire test in Tulsa, Oklahoma. ...
Fireproofing, a passive fire protection measure, subject to bounding, refers to the act of making materials or structures more resistant to fire, or to those materials themselves. ...
Cambrian College is a College of Applied Arts and Technology in Greater Sudbury, Ontario. ...
Nickname: Motto: Aedificemus (Latin for Come, let us build together) Coordinates: , Country Province Established 1893 (as Sudbury) 2001 (as Greater Sudbury) Government - Mayor John Rodriguez - Governing Body Greater Sudbury City Council - MPs Raymond Bonin (LPC), Diane Marleau (LPC) - MPPs Rick Bartolucci (OLP), Shelley Martel (NDP) Area - City 3,200 km...
Motto: Ut Incepit Fidelis Sic Permanet (Latin: Loyal she began, loyal she remains) Capital Toronto Largest city Toronto Official languages English (de facto) Government - Lieutenant-Governor David C. Onley - Premier Dalton McGuinty (Liberal) Federal representation in Canadian Parliament - House seats 106 - Senate seats 24 Confederation July 1, 1867 (1st) Area...
| Improper breach of fire-resistance rated drywall assembly, August 2000, Cambrian College, Greater Sudbury, Ontario, Canada. Image File history File links Size of this preview: 665 × 600 pixelsFull resolution (2204 × 1987 pixel, file size: 375 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Cambrian College is a College of Applied Arts and Technology in Greater Sudbury, Ontario. ...
Nickname: Motto: Aedificemus (Latin for Come, let us build together) Coordinates: , Country Province Established 1893 (as Sudbury) 2001 (as Greater Sudbury) Government - Mayor John Rodriguez - Governing Body Greater Sudbury City Council - MPs Raymond Bonin (LPC), Diane Marleau (LPC) - MPPs Rick Bartolucci (OLP), Shelley Martel (NDP) Area - City 3,200 km...
Motto: Ut Incepit Fidelis Sic Permanet (Latin: Loyal she began, loyal she remains) Capital Toronto Largest city Toronto Official languages English (de facto) Government - Lieutenant-Governor David C. Onley - Premier Dalton McGuinty (Liberal) Federal representation in Canadian Parliament - House seats 106 - Senate seats 24 Confederation July 1, 1867 (1st) Area...
| The "I-was-there-first-scenario", resulting in improper drywall firestops with plastic piping. Image File history File links Size of this preview: 692 × 599 pixelsFull resolution (4528 × 3921 pixel, file size: 1. ...
Piping is used to convey fluids (usually liquids and gases but sometimes loose solids) from one location to another. ...
| Fire testing of drywall assemblies for the purpose of expanding national catalogues, such as the National Building Code of Canada, Germany's Part 4 of DIN4102 and its British cousin BS476, are a matter of routine research and development work in more than one nation and can be sponsored jointly by national authorities and representatives of the drywall industry. For example, the National Research Council of Canada routinely publishes such findings. The results are printed as approved designs in the back of the building code. Generally, exposure of drywall on a panel furnace removes the water and calcines the exposed drywall and also heats the studs and fasteners holding the drywall. This typically results in deflection of the assembly towards the fire, as that is the location where the sublimation occurs, which weakens the assembly, due to the fire influence. When tests are co-sponsored, resulting in code recognised designs with assigned fire-resistance ratings, the resulting designs become part of the code and are not limited to use by any one manufacturer, provided the material used in the field configuration can be demonstrated to meet the minimum requirements of Type X drywall (such as an entry in the appropriate category of the UL Building Materials Directory) and that sufficient layers and thicknesses are used. In this case, the code design becomes the basis for bounding. For the purpose of unique designs, certified by organisations holding national accreditation for testing and certification such as Underwriters Laboratories, only the test sponsor's material qualifies for use in field bounding. Fire test reports for such unique third party tests are confidential. Deflection of drywall assemblies is important to consider to maintain the integrity of drywall assemblies in order to preserve their ratings. The deflection of drywall assemblies can vary somewhat from one test to another. Importantly, penetrants do not follow the deflection movement of the drywall assemblies they penetrate. For example, see cable tray movement in a German test right here. It is, therefore, important to test firestops in full scale wall panel tests, so that the deflection of each applicable assembly can be taken into account. The size of the test wall assembly alone is not the only consideration for firestop tests. If the penetrants are mounted to and hung off the drywall assembly itself during the test, this does not constitute a realistic deflection exposure insofar as the firestop is concerned. In reality, on a construction site, penetrants are hung off the ceiling above. Penetrants may increase in length, push and pull as a result of operational temperature changes (e.g. hot and cold water in a pipe), particularly in a fire, but it is a physical impossibility to have the penetrants follow the movement of drywall assemblies that they penetrate, since they are not mounted to the drywalls in a building. It is, therefore, counterproductive to suspend penetrants from the drywall assembly during a fire test. As downward deflection of the drywall assembly and buckling towards the fire occurs, the top of the firestop is squeezed and the bottom of the firestop is pulled - and this is motion over and above that, which is caused by the expansion of metallic penetrants themselves, due to heat exposure in a fire. Both types of motion occur in reality because metal first expands in a fire and then softens once the critical temperature has been reached, as is explained under structural steel. To simulate the drywall deflection effect, one can simply mount the penetrants to the steel frame holding the test assembly. The operational and fire induced motion of the penetrants themselves, which is independent of the assemblies penetrated, can be separately arranged. The National Building Code of Canada is the model building code of Canada. ...
The phrase research and development (also R and D or, more often, R&D), according to the Organization of Economic Coopeation and Development, refers to creative work undertaken on a systematic basis in order to increase the stock of knowledge, including knowledge of man, culture and society, and the use...
The National Research Council of Canada (NRC) is Canadas leading organization for scientific research and development. ...
A fastener is a hardware device that mechanically joins or affixes two or more objects together. ...
This article or section does not cite any references or sources. ...
This article does not cite any references or sources. ...
The UL Mark Underwriters Laboratories Inc. ...
To meet Wikipedias quality standards, this article or section may require cleanup. ...
Product certification or product qualification is the cornerstone of all bounding and the process of certifying that a certain product has passed performance and/or quality assurance tests or qualification requirements stipulated in regulations such as a building code and nationally accredited test standards, or that it complies with a...
The UL Mark Underwriters Laboratories Inc. ...
A Fire Test is a means of determining whether or not fire protection products meet minimum performance criteria as set out in a building code or other applicable legislation. ...
A penetrant is the cause for a service penetration firestop. ...
Firestopped cable tray penetration. ...
Firestop after fire exposure during fire test in Tulsa, Oklahoma. ...
PIPE can refer to PIPE (explosive) PIPE Networks Private Investment in Public Equity (PIPE) Physical Interface for PCI Express (PIPE) For other meanings, see also pipe. ...
Structural steel is steel construction material, a profile, formed with a specific shape or cross section and certain standards of chemical composition and strength. ...
North American market North America hails as one of the largest gypsum board users in the world with a total wallboard plant capacity of 40 billion square feet per year.[3] Moreover, the home building and remodeling markets in North America have increased demand the last five years. The gypsum board market is one of the biggest beneficiaries of the housing boom as "an average new American home contains more than 7.31 metric tons of gypsum."[4]
The introduction in March 2005 of the Clean Air Interstate Rule by the United States Environmental Protection Agency requires power plants to "cut sulfur dioxide emissions by 73%" by 2018.[5] The Clean Air Interstate Rule also requested that the power plants install new scrubbers (industrial pollution control devices) to remove sulfur dioxide present in the output waste gas. Scrubbers use the technique of flue gas desulfurization (FGD), which produces synthetic gypsum as a usable by-product. In response to the new supply of this raw material, the gypsum board market was predicted to shift significantly. However, issues such as mercury release during calcining need to be resolved. [6] EPA redirects here. ...
Flue gas desulfurization is technology that employs a sorbent, usually lime or limestone, to remove sulfur dioxide(SO2) from the gases produced by burning fossil fuels. ...
Waste Because up to 17% of drywall is wasted during the manufacturing and installation processes,[citation needed] and the drywall material is rarely re-used, disposal has become a problem. Some landfill sites have banned the dumping of drywall. Therefore, used drywall and gypsum are often dumped into the ocean where it may cause harm to sea life. The EPA regulates this ocean dumping by permit. Most manufacturers with an environmental concern take back the boards from construction sites, and burn them at high temperature to eliminate the paper and bringing back the gypsum to its initial plaster state. Recycled paper is sometimes used during manufacturing. More recently, recycling at the construction site itself is being investigated.
Types available in the USA and Canada - Regular white board, from 1/4" to 3/4" thickness
- Fire-resistant ("Type X"), different thickness and multiple layers of wallboard provide increased fire rating based on the time a specific wall assembly can withstand a standardized fire test. Often perlite, vermiculite and boric acid are added to improve fire resistance.
- Greenboard, a drywall that contains an oil-based additive in the green colored paper covering that provides moisture resistance. It is commonly used in washrooms and other areas expected to experience elevated levels of humidity.
- Blueboard or gypsum base, the blue face paper forms a strong bond with a skim coat or a built-up plaster finish
- Concrete backerboard, sometimes known as Durock, which is more water-resistant than greenboard, for use in showers or sauna rooms, and as a base for ceramic tile
- Soundboard is made from wood fibers to increase the sound rating (STC)
- Soundproof drywall such as QuietRock (not completely soundproof) is a laminated drywall made with gypsum, other materials, and damping polymers
- Mold-resistant, paperless drywall from Georgia-Pacific
- Enviroboard, a board made from recycled agricultural materials
- Lead-lined drywall, a drywall used around radiological equipment
- Foil-backed drywall to control moisture in a building or room
Expanded Perlite Perlite is an amorphous volcanic glass that has a relatively high water content. ...
Vermiculite is a natural, non toxic mineral that expands with the application of heat. ...
Boric acid, also called boracic acid or orthoboric acid or Acidum Boricum, is a mild acid often used as an antiseptic, insecticide, flame retardant, in nuclear power plants to control the fission rate of uranium, and as a precursor of other chemical compounds. ...
Sound Transmission Class (or STC) is an integer-number rating of how well a building partition isolates airborne sound. ...
QuietRock QuietRock is a registered trademark of Quiet Solution. ...
Georgia-Pacific Corp. ...
Enviroboard is a construction panel, generally manufactured using compressed ecologically safe sourced material. ...
Common drywall tools Look up bench in Wiktionary, the free dictionary. ...
Metal die-cast model of a Checker taxicab Originally, a Checker Cab was a taxi produced by the Checker Cab Manufacturing Company (later known as Checker Motors Corporation) of Kalamazoo, Michigan, and operating under the name Checker Cabs in New York and other American cities. ...
A gardening trowel Trowel used by the Hon. ...
A Dimpler or a drywall screw setter is a #2 Phillips screwdriver tip usually 1 long with a stopper, to stop the drywall screw from penetrating the drywall, this tool is mostly being used by non professional installers. ...
This article refers to the threaded fastener. ...
A pile of nails. ...
A basic screwdriver made by Craftsman (slotted tip shown) A rechargeable battery-powered electric screwdriver from Black & Decker The screwdriver is a device specifically designed to insert and tighten, or to loosen and remove, screws. ...
Joint compound is a white substance similar to plaster used to seal joints between sheets of drywall, primarily in building construction. ...
Joint compound is a white substance similar to plaster used to seal joints between sheets of drywall, primarily in building construction. ...
A keyhole (jab) saw used in a drywall cutting application. ...
This article is about the handwriting instrument. ...
The Needles, situated on the Isle Of Wight, are part of the extensive Southern England Chalk Formation. ...
Wood rasp A rasp is a woodworking tool used for shaping wood. ...
A stud finder (also stud detector or stud sensor) is a handheld device used to determine the location of framing studs used in light-frame construction after the walling surface has been installed. ...
Self-retracting pocket tape measure plastic tape measure A tape measure or measuring tape is a ribbon of cloth, plastic, or metal with linear-measure markings, often in both imperial and metric units. ...
A taping knife or joint knife is a drywall tool with a very large blade for spreading wide areas of joint compound over wallboard tape. ...
a Stanley 99E fully retracted A utility knife (also called a box cutter, a razor blade knife, a carpet knife, or a stationery knife) is a common tool used in various trades and crafts for a variety of purposes. ...
Levels of Finish "In 1990, four major trade associations, the Association of Wall and Ceiling Industries International (AWCI), the Ceilings and Interior Systems Construction Association (CISCA), the Gypsum Association (GA), and the Painting and Decorating Contractors of America (PDCA), presented the consensus document Levels of Gypsum Board Finish. The document was created to "precisely describe" the desired finish of walls and ceilings prior to final decoration. This precise description enables contractors to better understand the requirements of architects and building owners in order to enhance the satisfaction of the client. Specifications that include the Levels of Gypsum Board Finish also promote competitive bidding that allows the bidder to consider the correct labor and materials to finish the wall suitably for its final decoration." [1]
The official document (summarized below) is known as GA-214-96 "Recommended Levels of Gypsum Board Finish".
Level 0 No taping, finishing, or accessories required.
Usage: Temporary construction or when final decoration is undetermined.
Level 1 All joints and interior angles shall have tape set in joint compound. Surface shall be free of excess joint compound. Tool marks and ridges are acceptable.
Usage: Above false ceilings or other areas which are out of public view where a degree fire and noise resistance is required.
Level 2 All joints and interior angles shall have tape embedded in joint compound and wiped with a joint knife leaving a thin coating of joint compound over all joints and interior angles. Fastener heads and accessories shall be covered with a coat of joint compound. Surface shall be free of excess joint compound. Tool marks and ridges are acceptable. Joint compound applied over the body of the tape at the time of tape embedment shall be considered a separate coat of joint compound and shall satisfy the conditions of this level.
Usage: Substrate for tile as well as garages, warehouses, and other places where appearance is not a primary concern.
Level 3 All joints and interior angles shall have tape embedded in joint compound and one additional coat of joint compound applied over all joints and interior angles. Fastener heads and accessories shall be covered with two separate coats of joint compound. All joint compound shall be smooth and free of tool marks and ridges. It is recommended that the prepared surface be coated with a drywall primer prior to the application of final finishes.
Usage: Suitable base for heavy-medium textured paint or other thick finishes.
Level 4 All joints and interior angles shall have tape embedded in joint compound and two separate coats of joint compound applied over all flat joints and one separate coat of joint compound applied over interior angles. Fastener heads and accessories shall be covered with three separate coats of joint compound. All joint compound shall be smooth and free of tool marks and ridges. It is recommended that the prepared surface be coated with a drywall primer prior to the application of final finishes.
Usage: "Standard" household and office walls. Used with light or non-textured finishes. Not suitable for harsh lighting conditions which may highlight minor imperfections.
Level 5 All joints and interior angles shall have tape embedded in joint compound and two separate coats of joint compound applied over all flat joints and one separate coat of joint compound applied over interior angles. Fastener heads and accessories shall be covered with three separate coats of joint compound. A thin skim coat of joint compound or a material manufactured especially for this purpose, shall be applied to the entire surface. The surface shall be smooth and free of tool marks and ridges. It is recommended that the prepared surface be coated with a drywall primer prior to the application of finish paint.
Usage: The skim coat is a final leveling agent suitable to smooth out a surface to be used under the harshest lighting conditions that may otherwise highlight any imperfections under the finished surface. This finish is highly recommended for gloss and entirely non-textured surfaces.
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In thermodynamics, the word endothermic describes a process or reaction that absorbs energy in the form of heat. ...
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Firestop after fire exposure during fire test in Tulsa, Oklahoma. ...
This article is about firewalls used in construction. ...
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Knockdown Texture is a drywall finishing style. ...
Product certification or product qualification is the cornerstone of all bounding and the process of certifying that a certain product has passed performance and/or quality assurance tests or qualification requirements stipulated in regulations such as a building code and nationally accredited test standards, or that it complies with a...
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References Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ...
is the 292nd day of the year (293rd in leap years) in the Gregorian calendar. ...
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History - Essay on the history of Sheetrock in the US
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