Existing Conditions R0241 Demolition Gutting

1 Existing ConditionsR0241 DemolitionR024119-10 Demolition DefinedWhole Building Demolition - Demolition of the whole building with noconcern for any particular building element, component, or materialtype being demolished. This type of Demolition is accomplished with largepieces of construction equipment that break up the structure, load it intotrucks and haul it to a disposal site, but disposal or dump fees are notincluded. Demolition of below-grade foundation elements, such as footings,foundation walls, grade beams, slabs on grade, etc., is not mechanical equipment containing flammable liquids orozone-depleting refrigerants, electric lighting elements, communicationequipment components, and other building elements may contain hazardouswaste, and must be removed, either selectively or carefully, as hazardouswaste before the building can be Demolition - Demolition of below-grade foundation footings,foundation walls, grade beams, and slabs on grade.

2 This type of demolitionis accomplished by hand or pneumatic hand tools, and does not include sawcutting, or handling, loading, hauling, or disposal of the -Removal of building interior finishes and electrical/mechanicalsystems down to the load-bearing and sub-floor elements of the roughbuilding frame, with no concern for any particular building element,component, or material type being demolished. This type of Demolition isaccomplished by hand or pneumatic hand tools, and includes loading intotrucks, but not hauling, disposal or dump fees, scaffolding, or mechanical equipment containing flammable liquids orozone-depleting refrigerants, electric lighting elements, communicationequipment components, and other building elements may contain hazardouswaste, and must be removed, either selectively or carefully, as hazardouswaste, before the building is Demolition - Demolition of a selected building element,component, or finish, with some concern for surrounding or adjacentelements, components, or finishes (see the first Subdivision (s) at thebeginning of appropriate Divisions).

3 This type of Demolition is accomplishedby hand or pneumatic hand tools, and does not include handling, loading,storing, hauling, or disposal of the debris, scaffolding, or shoring. Gutting methods may be used in order to save time, but damage that is causedto surrounding or adjacent elements, components, or finishes may have tobe repaired at a later Removal -Removal of a piece of service equipment, buildingelement or component, or material type, with great concern for both theremoved item and surrounding or adjacent elements, components or purpose of careful removal may be to protect the removed item forlater re-use, preserve a higher salvage value of the removed item, or replacean item while taking care to protect surrounding or adjacent elements,components, connections, or finishes from cosmetic and/or structuraldamage.

4 An approximation of the time required to perform this type ofremoval is 1/3 to 1/2 the time it would take to install a new item of like kind(see Reference Number R220105-10). This type of removal is accomplishedby hand or pneumatic hand tools, and does not include loading, hauling,or storing the removed item, scaffolding, shoring, or lifting Demolition - Demolition of a small quantity of floor, wall, roof, orother assembly, with concern for the appearance and structural integrityof the surrounding materials. This type of Demolition is accomplished byhand or pneumatic hand tools, and does not include saw cutting, handling,loading, hauling, or disposal of debris, scaffolding, or Handling -Work activities that involve handling, loading or haulingof debris.

5 Generally, the cost of rubbish handling must be added to thecost of all types of Demolition , with the exception of whole Site Demolition - Demolition of site elements outside the footprintof a building. This type of Demolition is accomplished by hand orpneumatic hand tools, or with larger pieces of construction equipment, andmay include loading a removed item onto a truck (check the Crew forequipment used). It does not include saw cutting, hauling or disposal ofdebris, and, sometimes, handling or DumpstersDumpster rental costs on construction sites are presented in two ways:The cost per week rental includes the delivery of the dumpster; its pullingor emptying once per week, and its final removal. The assumption is madethat the dumpster contractor could choose to empty a dumpster by simplybringing in an empty unit and removing the full one.

6 These costs alsoinclude the disposal of the materials in the alternate pricing can be used when actual planned Conditions are notapproximated by the weekly numbers. For example, these lines can beused when a dumpster is needed for 4 weeks and will need to be emptied2 or 3 times per week. Conversely the alternate pricing lines can be usedwhen a dumpster will be rented for several weeks or months but needs to beemptied only a few times over this Rubbish Handling ChutesTo correctly estimate the cost of rubbish handling chute systems, theindividual components must be priced separately. First choose the size ofthe system; a 30-inch diameter chute is quite common, but the sizes rangefrom 18 to 36 inches in diameter. The 30-inch chute comes in a standardweight and two thinner weights.

7 The thinner weight chutes are sometimeschosen for cost savings, but they are more easily are several types of major chute pieces that make up the chute first component to consider is the top chute section (top intakehopper) where the material is dropped into the chute at the highest determining the top chute, the intermediate chute pieces called theregular chute sections are priced. Next, the number of chute control doorsections (intermediate intake hoppers) must be determined. In the morecomplex systems, a chute control door section is provided at each floor last major component to consider is bolt down frames; these areusually provided at every other floor are a number of accessories to consider for safe operation and are covers for the top chute and the chute door sections.

8 The topchute can have a trough that allows for better loading of the chute. For thesafest operation, a chute warning light system can be added that will warnthe other chute intake locations not to load while another is being are dust control devices that spray a water mist to keep down thedust as the debris is loaded into a dumpster. There are special breakawaycords that are used to prevent damage to the chute if the dumpster isremoved without disconnecting from the chute. There are chute liners thatcan be installed to protect the chute structure from physical damage fromrough abrasive materials. Warning signs can be posted at each floor level thatis provided with a chute control door summary, a complete rubbish handling chute system will include one topsection, several intermediate regular sections, several intermediate controldoor (intake hopper) sections and bolt down frames at every other floor levelstarting with the top floor.

9 If so desired, the system can also include coversand a light warning system for a safer operation. The bottom of thechute should always be above the Dumpster and should be tied off with abreakaway cord to the Tables