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Disaster Advice Glossary
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Disaster recovery and restoration can be veiled in mystery to the many who have not undertaken specific training. This glossary explains technical terms to assist both report writing and the understanding of those technical terms so often misunderstood.
Definition
| Absorbed water: |
Surface water which is held in place by tension or electrochemical forces. The adhesion of water in the form of mnolecules as a liquid, vapour, or gas as a disssolved substance bound in or on a material. |
| Adhesion: |
The ability of a material to adhere and bond to another surface or material usually with a chemical binder or adhesive. Education Note: In painting, for example, the adhesion increases as the surfaces are able to molecularly bond with each other. |
| Adhesion, loss of: |
The resistance to delaminate or separate from one or more layers, resulting in a loss of bonding strength. |
| Adhesive: |
A chemical substance used to bond materials together. In most carpets which have backings, adhesives are applied between the primary and secondary backing. In plywood, adhesives are used to bond layers of wood together. Often, adhesives are stronger than the materials they hold or bond together, while in other instances, the loss of adhesion strength by the adhesive, results in delamination or loss of structural integrety of the material. |
| Blisters on Painted Surfaces: |
Blisters on a paint film is a dome shape bubble of paint that has released its adhesion from the underside surface. The dome shape blister may be irregular or circular in shape. If the condition exists after a flood or there exists excessive moisture content behind the painted surfaces, the blister may be filled with water or water vapour. |
| Blocking in Painting: |
Blocking is a paint condition resulting in undesired adhesion between newly painted surfaces, such as painted cabinets and doors, that have been closed and opened before or after the paint film was allowed to thoroughly dry and cure. Education Note: Blocking refers to the new paint sticking to itself, and usually the condition leaves bare patches of the substrate. Blocking may be a result of painting too soon after a water damage occurrence, or the presence of to high of a moisture content in building materials. |
| Capillary Attraction: |
The force of a liquid to rise when in contact with a porous substance. The force of adhesion and surface tension allows a substance to soak up a liquid. |
| Carpet Roller: |
A rolling tool weighing from 35 to 50 pounds and up to 100 pounds, that aids the adhesion of carpet and mastic adhesives to bond with a subfloor. Water Damage Note: Carpet rollers are also used on water damaged carpets, where especially gluedown carpets are squeezed-out of the excess moisture. See Compression Rolling |
| Ceramic Tile: |
Ceramic tiles are made of clay, fired and baked in a kiln, having a glaze finish. Ceramic tiles are permanently attached to floors and some walls and ceilings, as well as on counter tops. The glaze finish of ceramic tiles are a moisture-resistant surface, which is very durable under most conditions. Ceramic tiles are adhered with a mastic or mortar and filled between the tiles with a cement or synthetic coloured grout. Education Note: Ceramic tiles stand-up very well in water damage situations, but when fresh water or sewage water entrains under the tiles, through an underlayment, or from saturation moisture wicks up from a lower substrate, resulting in the adhesion of some tiles to become loose, causing in the eventual cracking and damage to some tiles. Mitigation Note: Kitchen ceramic tile counters having tile as part of the backsplash, the tiles may be in good condition, but when the lower counter is damaged, requiring detaching, repair or replacement of the counter, or the subfloor, the ceramic tiles are almost always damaged during the counter removal. |
The Disaster Advice Glossary and its contents are the protected copyright of Disaster Advice
The Disaster Advice Glossary operates on TechMerit Technoloy.
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