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Suspended ceiling-A ceiling system supported by hanging it from the overhead structural framing. Terra cotta-A ceramic material molded into masonry units. Testing combination-A unique surface to be tested that is characterized by the room equivalent, component,and substrate. Test location-A specific area on a testing combination where XRF instruments will test for lead- based paint. Threshold-The bottom metal or wood plate of an exterior door frame. Generally they are adjustable to keep a tight fit with the door slab. Tread-The walking surface board in a stairway on which the foot is placed. Treated lumber- A wood product which has been impregnated with chemical pesticides such as CCA(Chromated Copper Arsenate) to reduce damage from wood rotor insects. Often used for the portions of a structure which are likely to be in contact with soil and water.Wood may also be treated with a fire retardant. Treatment-In residential lead-based paint hazard control work,any method designed to control lead-based paint hazards. Treatment includes interim controls,abatement,and removal. Trim-Interior-The finish materials in a building, such as moldings applied around openings (window trim, door trim)or at the floor and ceiling of rooms (baseboard,cornice,and other moldings).Also,the physical work of installing interior doors and interior woodwork, to include all handrails,guardrails,stair way balustrades,mantles, light boxes,base, door casings,cabinets, countertops,shelves,window sills and aprons,etc. Exterior-The finish materials on the exterior a building, such as moldings applied around openings(window trim,door trim), siding,windows, exterior doors, attic vents,crawl space vents, shutters,etc. Also,the physical work of installing these materials. Ug-Micrograms. The prefix micro means 1/1,000,000(or one-millionth); a microgram is 1/1,000,000 of a gram and 1/1,000 or a milligram. Veneer-Extremely thin sheets of wood.Also a thin slice of wood or brick or stone covering a framed wall. Vent-A pipe or duct which allows the flow of air and gasses to the outside. Also,another word for the moving glass part of a window sash,i.e. window vent. Wafer board-A manufactured wood panel made out of I"- 2" wood chips and glue.Often used as a substitute for plywood in the exterior wall and roof sheathing. Water board-Water resistant drywall to be used in tub and shower locations. Normally green or blue colored Window frame-The stationary part of a window unit;window sash fits into the window frame. 49930 N Samiam Hwy SE,Wanha,OR 97350 - Page 142