- Cut specified lengths of primacord and attach primers to cord ends.
Occupations with related tasks Save Table: XLSX CSV
| Closely Related Tasks | All Related Tasks | Job Zone | Code | Occupation |
| 9 | 9 | 2 | 47-5032.00 | Explosives Workers, Ordnance Handling Experts, and Blasters |
| 4 | 4 | 2 | 47-2041.00 | Carpet Installers |
| 2 | 3 | 2 | 47-2042.00 | Floor Layers, Except Carpet, Wood, and Hard Tiles 
|
| 2 | 3 | 2 | 47-3012.00 | Helpers--Carpenters |
| 1 | 7 | 2 | 47-2121.00 | Glaziers |
| 1 | 4 | 2 | 47-2044.00 | Tile and Stone Setters
|
| 1 | 3 | 2 | 47-2142.00 | Paperhangers |
| 1 | 2 | 2 | 47-5012.00 | Rotary Drill Operators, Oil and Gas |
| 1 | 1 | 2 | 47-2131.00 | Insulation Workers, Floor, Ceiling, and Wall |
| 1 | 1 | 2 | 47-2132.00 | Insulation Workers, Mechanical |
| 1 | 1 | 2 | 47-2141.00 | Painters, Construction and Maintenance |
| 1 | 1 | 3 | 47-2152.04 | Solar Thermal Installers and Technicians |
| 1 | 1 | 2 | 47-2181.00 | Roofers |
- Tie specified lengths of delaying fuses into patterns in order to time sequences of explosions.
- Place explosive charges in holes or other spots; then detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials.
- Insert, pack, and pour explosives, such as dynamite, ammonium nitrate, black powder, or slurries into blast holes; then shovel drill cuttings, admit water into boreholes, and tamp material to compact charges.
- Connect electrical wire to primers, and cover charges or fill blast holes with clay, drill chips, sand, or other material.
- Lay primacord between rows of charged blast holes, and tie cord into main lines to form blast patterns.
- Assemble and position equipment, explosives, and blasting caps in holes at specified depths, or load perforating guns or torpedoes with explosives.
- Cut specified lengths of primacord and attach primers to cord ends.
- Connect gun chambers to electric detonating devices, and operate controls at panelboards, in order to detonate charges in guns or to ignite chemical charges.
- Insert powder charges into chambers of sidewall sample-taking cylinders, and assemble cylinders, using special wrenches.
- Examine blast areas to determine amounts and kinds of explosive charges needed and to ensure that safety laws are observed.
- Place safety cones around blast areas to alert other workers of danger zones, and signal workers as necessary to ensure that they clear blast sites prior to explosions.
- Mark patterns, locations, and depths of charge holes for drilling, and issue drilling instructions.
- Compile and keep gun and explosives records in compliance with local and federal laws.
- Measure depths of drilled blast holes, using weighted tape measures.
- Verify detonation of charges by observing control panels, or by listening for the sounds of blasts.
- Move and store inventories of explosives, loaded perforating guns, and other materials, according to established safety procedures.
- Light fuses, drop detonating devices into wells or boreholes, or activate firing devices with plungers, dials, or buttons, in order to set off single or multiple blasts.
- Drive trucks to transport explosives and blasting equipment to blasting sites.
- Maintain inventory levels, ordering new supplies as necessary.
- Repair and service blasting, shooting, and automotive equipment, and electrical wiring and instruments, using hand tools.
- Set up and operate short-wave radio or field telephone equipment to transmit and receive blast information.
- Insert waterproof sealers, bullets, and/or powder charges into guns, and screw gun ports back into place.
- Clean, gauge, and lubricate gun ports.
- Lower perforating guns into wells, using hoists; then use measuring devices and instrument panels to position guns in correct positions for taking samples.
- Obtain samples of earth from sidewalls of well boreholes, using electrically exploding devices.
- Create and lay out designs for drill and blast patterns.
- Document geological formations encountered during work.
- Operate machines to flush earth cuttings or to blow dust from holes.
- Set up and operate equipment such as hoists, jackhammers, and drills, in order to bore charge holes.
- Signal crane operators to move equipment.
- Tie specified lengths of delaying fuses into patterns in order to time sequences of explosions.
- Place explosive charges in holes or other spots; then detonate explosives to demolish structures or to loosen, remove, or displace earth, rock, or other materials.
- Insert, pack, and pour explosives, such as dynamite, ammonium nitrate, black powder, or slurries into blast holes; then shovel drill cuttings, admit water into boreholes, and tamp material to compact charges.
- Connect electrical wire to primers, and cover charges or fill blast holes with clay, drill chips, sand, or other material.
- Lay primacord between rows of charged blast holes, and tie cord into main lines to form blast patterns.
- Assemble and position equipment, explosives, and blasting caps in holes at specified depths, or load perforating guns or torpedoes with explosives.
- Cut specified lengths of primacord and attach primers to cord ends.
- Connect gun chambers to electric detonating devices, and operate controls at panelboards, in order to detonate charges in guns or to ignite chemical charges.
- Insert powder charges into chambers of sidewall sample-taking cylinders, and assemble cylinders, using special wrenches.
- Roll out, measure, mark, and cut carpeting to size with a carpet knife, following floor sketches and allowing extra carpet for final fitting.
- Cut and trim carpet to fit along wall edges, openings, and projections, finishing the edges with a wall trimmer.
- Cut carpet padding to size and install padding, following prescribed method.
- Cut and bind material.
- Inspect the surface to be covered to determine its condition, and correct any imperfections that might show through carpet or cause carpet to wear unevenly.
- Join edges of carpet and seam edges where necessary, by sewing or by using tape with glue and heated carpet iron.
- Plan the layout of the carpet, allowing for expected traffic patterns and placing seams for best appearance and longest wear.
- Stretch carpet to align with walls and ensure a smooth surface, and press carpet in place over tack strips or use staples, tape, tacks or glue to hold carpet in place.
- Take measurements and study floor sketches to calculate the area to be carpeted and the amount of material needed.
- Install carpet on some floors using adhesive, following prescribed method.
- Clean up before and after installation, including vacuuming carpet and discarding remnant pieces.
- Measure, cut and install tackless strips along the baseboard or wall.
- Nail tack strips around area to be carpeted or use old strips to attach edges of new carpet.
- Fasten metal treads across door openings or where carpet meets flooring to hold carpet in place.
- Draw building diagrams and record dimensions.
- Move furniture from area to be carpeted and remove old carpet and padding.
- Roll out, measure, mark, and cut carpeting to size with a carpet knife, following floor sketches and allowing extra carpet for final fitting.
- Cut and trim carpet to fit along wall edges, openings, and projections, finishing the edges with a wall trimmer.
- Cut carpet padding to size and install padding, following prescribed method.
- Cut and bind material.
- Cut flooring material to fit around obstructions.
- Cut covering and foundation materials, according to blueprints and sketches.
- Trim excess covering materials, tack edges, and join sections of covering material to form tight joint.
- Sweep, scrape, sand, or chip dirt and irregularities to clean base surfaces, correcting imperfections that may show through the covering.
- Inspect surface to be covered to ensure that it is firm and dry.
- Form a smooth foundation by stapling plywood or Masonite over the floor or by brushing waterproof compound onto surface and filling cracks with plaster, putty, or grout to seal pores.
- Measure and mark guidelines on surfaces or foundations, using chalk lines and dividers.
- Roll and press sheet wall and floor covering into cement base to smooth and finish surface, using hand roller.
- Apply adhesive cement to floor or wall material to join and adhere foundation material.
- Determine traffic areas and decide location of seams.
- Lay out, position, and apply shock-absorbing, sound-deadening, or decorative coverings to floors, walls, and cabinets, following guidelines to keep courses straight and create designs.
- Remove excess cement to clean finished surface.
- Disconnect and remove appliances, light fixtures, and worn floor and wall covering from floors, walls, and cabinets.
- Heat and soften floor covering materials to patch cracks or fit floor coverings around irregular surfaces, using blowtorch.
- Cut flooring material to fit around obstructions.
- Cut covering and foundation materials, according to blueprints and sketches.
- Trim excess covering materials, tack edges, and join sections of covering material to form tight joint.
- Cut and install insulating or sound-absorbing material.
- Cut tile or linoleum to fit and spread adhesives on flooring for installation.
- Cut timbers, lumber, or paneling to specified dimensions.
- Clean work areas, machines, or equipment, to maintain a clean and safe job site.
- Fasten timbers or lumber with glue, screws, pegs, or nails and install hardware.
- Perform tie spacing layout and measure, mark, drill or cut.
- Select tools, equipment, or materials from storage and transport items to work site.
- Drill holes in timbers or lumber.
- Position and hold timbers, lumber, or paneling in place for fastening or cutting.
- Align, straighten, plumb, or square forms for installation.
- Hold plumb bobs, sighting rods, or other equipment to aid in establishing reference points and lines.
- Erect scaffolding, shoring, or braces.
- Construct forms and assist in raising them to the required elevation.
- Install handrails under the direction of a carpenter.
- Glue and clamp edges or joints of assembled parts.
- Smooth or sand surfaces to remove ridges, tool marks, glue, or caulking.
- Secure stakes to grids for constructions of footings, nail scabs to footing forms, and vibrate and float concrete.
- Cover surfaces with laminated plastic covering material.
- Cut and install insulating or sound-absorbing material.
- Cut tile or linoleum to fit and spread adhesives on flooring for installation.
- Cut timbers, lumber, or paneling to specified dimensions.
- Measure, cut, fit, and press anti-glare adhesive film to glass or spray glass with tinting solution to prevent light glare.
- Cut, fit, install, repair, or replace glass or glass substitutes, such as plastic or aluminum, in building interiors or exteriors or in furniture or other products.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Pack spaces between moldings and glass with glazing compounds and trim excess material with glazing knives.
- Cut and remove broken glass prior to installing replacement glass.
- Score glass with cutters' wheels, breaking off excess glass by hand or with notched tools.
- Prepare glass for cutting by resting it on rack edges or against cutting tables and brushing thin layer of oil along cutting lines or dipping cutting tools in oil.
- Read and interpret blueprints or specifications to determine size, shape, color, type, or thickness of glass, location of framing, installation procedures, or staging or scaffolding materials required.
- Determine plumb of walls or ceilings, using plumb lines and levels.
- Install pre-assembled metal or wood frameworks for windows or doors to be fitted with glass panels, using hand tools.
- Fabricate or install metal sashes or moldings for glass installation, using aluminum or steel framing.
- Operate cranes or hoists with suction cups to lift large, heavy pieces of glass.
- Set glass doors into frames and bolt metal hinges, handles, locks, or other hardware to attach doors to frames and walls.
- Drive trucks to installation sites and unload mirrors, glass equipment, or tools.
- Load and arrange glass or mirrors onto delivery trucks, using suction cups or cranes to lift glass.
- Measure mirrors and dimensions of areas to be covered to determine work procedures.
- Assemble, erect, or dismantle scaffolds, rigging, or hoisting equipment.
- Secure mirrors in position, using mastic cement, putty, bolts, or screws.
- Measure and mark outlines or patterns on glass to indicate cutting lines.
- Grind or polish glass, smoothing edges when necessary.
- Fasten glass panes into wood sashes or frames with clips, points, or moldings, adding weather seals or putty around pane edges to seal joints.
- Cut, assemble, fit, or attach metal-framed glass enclosures for showers, bathtubs, display cases, skylights, solariums, or other structures.
- Move furniture to clear work sites and cover floors or furnishings with drop cloths.
- Confer with customers to determine project requirements or to provide cost estimates.
- Select the type or color of glass or mirror according to specifications.
- Assemble and cement sections of stained glass together.
- Create patterns on glass by etching, sandblasting, or painting designs.
- Measure, cut, fit, and press anti-glare adhesive film to glass or spray glass with tinting solution to prevent light glare.
- Cut, fit, install, repair, or replace glass or glass substitutes, such as plastic or aluminum, in building interiors or exteriors or in furniture or other products.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Pack spaces between moldings and glass with glazing compounds and trim excess material with glazing knives.
- Cut and remove broken glass prior to installing replacement glass.
- Score glass with cutters' wheels, breaking off excess glass by hand or with notched tools.
- Prepare glass for cutting by resting it on rack edges or against cutting tables and brushing thin layer of oil along cutting lines or dipping cutting tools in oil.
- Cut tile backing to required size, using shears.
- Cut and shape tile to fit around obstacles and into odd spaces and corners, using hand and power cutting tools.
- Measure and cut metal lath to size for walls and ceilings, using tin snips.
- Cut, surface, polish, and install marble and granite or install pre-cast terrazzo, granite or marble units.
- Align and straighten tile using levels, squares, and straightedges.
- Finish and dress the joints and wipe excess grout from between tiles, using damp sponge.
- Determine and implement the best layout to achieve a desired pattern.
- Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.
- Study blueprints and examine surface to be covered to determine amount of material needed.
- Measure and mark surfaces to be tiled, following blueprints.
- Lay and set mosaic tiles to create decorative wall, mural, and floor designs.
- Apply mortar to tile back, position the tile, and press or tap with trowel handle to affix tile to base.
- Mix and apply mortar or cement to edges and ends of drain tiles to seal halves and joints.
- Apply a sealer to make grout stain- and water-resistant.
- Level concrete and allow to dry.
- Install and anchor fixtures in designated positions, using hand tools.
- Prepare surfaces for tiling by attaching lath or waterproof paper, or by applying a cement mortar coat to a metal screen.
- Remove and replace cracked or damaged tile.
- Remove any old tile, grout and adhesive using chisels and scrapers and clean the surface carefully.
- Spread mastic or other adhesive base on roof deck to form base for promenade tile, using serrated spreader.
- Assist customers in selection of tile and grout.
- Prepare cost and labor estimates, based on calculations of time and materials needed for project.
- Brush glue onto manila paper on which design has been drawn and position tiles, finished side down, onto paper.
- Select and order tile and other items to be installed, such as bathroom accessories, walls, panels, and cabinets, according to specifications.
- Build underbeds and install anchor bolts, wires, and brackets.
- Cut tile backing to required size, using shears.
- Cut and shape tile to fit around obstacles and into odd spaces and corners, using hand and power cutting tools.
- Measure and cut metal lath to size for walls and ceilings, using tin snips.
- Cut, surface, polish, and install marble and granite or install pre-cast terrazzo, granite or marble units.
- Measure and cut strips from rolls of wallpaper or fabric, using shears or razors.
- Trim rough edges from strips, using straightedges and trimming knives.
- Trim excess material at ceilings or baseboards, using knives.
- Smooth strips or sections of paper with brushes or rollers to remove wrinkles and bubbles and to smooth joints.
- Check finished wallcoverings for proper alignment, pattern matching, and neatness of seams.
- Mark vertical guidelines on walls to align strips, using plumb bobs and chalk lines.
- Cover interior walls and ceilings of rooms with decorative wallpaper or fabric, using hand tools.
- Apply adhesives to the backs of paper strips, using brushes, or dunk strips of prepasted wallcovering in water, wiping off any excess adhesive.
- Place strips or sections of paper on surfaces, aligning section edges and patterns.
- Fill holes, cracks, and other surface imperfections preparatory to covering surfaces.
- Measure surfaces or review work orders to estimate the quantities of materials needed.
- Apply sizing to seal surfaces and maximize adhesion of coverings to surfaces.
- Smooth rough spots on walls and ceilings, using sandpaper.
- Set up equipment, such as pasteboards and scaffolds.
- Remove old paper, using water, steam machines, or solvents and scrapers.
- Apply thinned glue to waterproof porous surfaces, using brushes, rollers, or pasting machines.
- Mix paste, using paste powder and water, and brush paste onto surfaces.
- Staple or tack advertising posters onto fences, walls, billboards, or poles.
- Remove paint, varnish, dirt, and grease from surfaces, using paint remover and water soda solutions.
- Apply acetic acid to damp plaster to prevent lime from bleeding through paper.
- Measure and cut strips from rolls of wallpaper or fabric, using shears or razors.
- Trim rough edges from strips, using straightedges and trimming knives.
- Trim excess material at ceilings or baseboards, using knives.
- Lower and explode charges in boreholes to start flow of oil from wells.
- Plug observation wells, and restore sites.
- Train crews, and introduce procedures to make drill work more safe and effective.
- Observe pressure gauge and move throttles and levers to control the speed of rotary tables, and to regulate pressure of tools at bottoms of boreholes.
- Count sections of drill rod to determine depths of boreholes.
- Push levers and brake pedals to control gasoline, diesel, electric, or steam draw works that lower and raise drill pipes and casings in and out of wells.
- Connect sections of drill pipe, using hand tools and powered wrenches and tongs.
- Maintain records of footage drilled, location and nature of strata penetrated, materials and tools used, services rendered, and time required.
- Maintain and adjust machinery to ensure proper performance.
- Start and examine operation of slush pumps to ensure circulation and consistency of drilling fluid or mud in well.
- Locate and recover lost or broken bits, casings, and drill pipes from wells, using special tools.
- Weigh clay, and mix with water and chemicals to make drilling mud.
- Direct rig crews in drilling and other activities, such as setting up rigs and completing or servicing wells.
- Monitor progress of drilling operations, and select and change drill bits according to the nature of strata, using hand tools.
- Repair or replace defective parts of machinery, such as rotary drill rigs, water trucks, air compressors, and pumps, using hand tools.
- Clean and oil pulleys, blocks, and cables.
- Bolt together pump and engine parts, and connect tanks and flow lines.
- Remove core samples during drilling to determine the nature of the strata being drilled.
- Cap wells with packers, or turn valves, to regulate outflow of oil from wells.
- Line drilled holes with pipes, and install all necessary hardware, to prepare new wells.
- Position and prepare truck-mounted derricks at drilling areas specified on field maps.
- Dig holes, set forms, and mix and pour concrete, for foundations of steel or wooden derricks.
- Lower and explode charges in boreholes to start flow of oil from wells.
- Plug observation wells, and restore sites.
- Measure and cut insulation for covering surfaces, using tape measures, handsaws, power saws, knives, or scissors.
- Fit, wrap, staple, or glue insulating materials to structures or surfaces, using hand tools or wires.
- Cover and line structures with blown or rolled forms of materials to insulate against cold, heat, or moisture, using saws, knives, rasps, trowels, blowers, or other tools and implements.
- Distribute insulating materials evenly into small spaces within floors, ceilings, or walls, using blowers and hose attachments, or cement mortars.
- Move controls, buttons, or levers to start blowers and regulate flow of materials through nozzles.
- Fill blower hoppers with insulating materials.
- Cover, seal, or finish insulated surfaces or access holes with plastic covers, canvas strips, sealants, tape, cement or asphalt mastic.
- Read blueprints, and select appropriate insulation, based on space characteristics and the heat retaining or excluding characteristics of the material.
- Remove old insulation, such as asbestos, following safety procedures.
- Prepare surfaces for insulation application by brushing or spreading on adhesives, cement, or asphalt, or by attaching metal pins to surfaces.
- Measure and cut insulation for covering surfaces, using tape measures, handsaws, power saws, knives, or scissors.
- Measure and cut insulation for covering surfaces, using tape measures, handsaws, knives, and scissors.
- Apply, remove, and repair insulation on industrial equipment, pipes, ductwork, or other mechanical systems such as heat exchangers, tanks, and vessels, to help control noise and maintain temperatures.
- Select appropriate insulation, such as fiberglass, Styrofoam, or cork, based on the heat retaining or excluding characteristics of the material.
- Fit insulation around obstructions, and shape insulating materials and protective coverings as required.
- Determine the amounts and types of insulation needed, and methods of installation, based on factors such as location, surface shape, and equipment use.
- Cover, seal, or finish insulated surfaces or access holes with plastic covers, canvas strips, sealants, tape, cement, or asphalt mastic.
- Install sheet metal around insulated pipes with screws to protect the insulation from weather conditions or physical damage.
- Read blueprints and specifications to determine job requirements.
- Prepare surfaces for insulation application by brushing or spreading on adhesives, cement, or asphalt, or by attaching metal pins to surfaces.
- Distribute insulating materials evenly into small spaces within floors, ceilings, or walls, using blowers and hose attachments or cement mortar.
- Remove or seal off old asbestos insulation, following safety procedures.
- Fill blower hoppers with insulating materials.
- Move controls, buttons, or levers to start blowers, and to regulate flow of materials through nozzles.
- Measure and cut insulation for covering surfaces, using tape measures, handsaws, knives, and scissors.
- Cut stencils and brush or spray lettering or decorations on surfaces.
- Fill cracks, holes, or joints with caulk, putty, plaster, or other fillers, using caulking guns or putty knives.
- Cover surfaces with dropcloths or masking tape and paper to protect surfaces during painting.
- Smooth surfaces, using sandpaper, scrapers, brushes, steel wool, or sanding machines.
- Read work orders or receive instructions from supervisors or homeowners to determine work requirements.
- Apply primers or sealers to prepare new surfaces, such as bare wood or metal, for finish coats.
- Apply paint, stain, varnish, enamel, or other finishes to equipment, buildings, bridges, or other structures, using brushes, spray guns, or rollers.
- Erect scaffolding or swing gates, or set up ladders, to work above ground level.
- Mix and match colors of paint, stain, or varnish with oil or thinning and drying additives to obtain desired colors and consistencies.
- Calculate amounts of required materials and estimate costs, based on surface measurements or work orders.
- Polish final coats to specified finishes.
- Wash and treat surfaces with oil, turpentine, mildew remover, or other preparations, and sand rough spots to ensure that finishes will adhere properly.
- Select and purchase tools or finishes for surfaces to be covered, considering durability, ease of handling, methods of application, and customers' wishes.
- Remove old finishes by stripping, sanding, wire brushing, burning, or using water or abrasive blasting.
- Remove fixtures such as pictures, door knobs, lamps, or electric switch covers prior to painting.
- Use special finishing techniques such as sponging, ragging, layering, or faux finishing.
- Waterproof buildings, using waterproofers or caulking.
- Spray or brush hot plastics or pitch onto surfaces.
- Bake finishes on painted or enameled articles, using baking ovens.
- Cut stencils and brush or spray lettering or decorations on surfaces.
- Cut, miter, and glue piping insulation to insulate plumbing pipes and fittings.
- Test operation or functionality of mechanical, plumbing, electrical, and control systems.
- Apply weather seal, such as pipe flashings and sealants, to roof penetrations and structural devices.
- Install solar collector mounting devices on tile, asphalt, shingle, or built-up gravel roofs, using appropriate materials and penetration methods.
- Install copper or plastic plumbing using pipes, fittings, pipe cutters, acetylene torches, solder, wire brushes, sand cloths, flux, plastic pipe cleaners, or plastic glue.
- Identify plumbing, electrical, environmental, or safety hazards associated with solar thermal installations.
- Demonstrate start-up, shut-down, maintenance, diagnostic, and safety procedures to thermal system owners.
- Install circulating pumps using pipe, fittings, soldering equipment, electrical supplies, and hand tools.
- Install flat-plat, evacuated glass, or concentrating solar collectors on mounting devices, using brackets or struts.
- Install solar thermal system controllers and sensors.
- Fill water tanks and check tanks, pipes, and fittings for leaks.
- Design active direct or indirect, passive direct or indirect, or pool solar systems.
- Determine locations for installing solar subsystem components, including piping, water heaters, valves, and ancillary equipment.
- Perform routine maintenance or repairs to restore solar thermal systems to baseline operating conditions.
- Install heat exchangers and heat exchanger fluids according to installation manuals and schematics.
- Apply operation or identification tags or labels to system components, as required.
- Connect water heaters and storage tanks to power and water sources.
- Install plumbing, such as dip tubes, port fittings, drain tank valves, pressure temperature relief valves, or tanks, according to manufacturer specifications and building codes.
- Install monitoring system components, such as flow meters, temperature gauges, and pressure gauges, according to system design and manufacturer specifications.
- Assess collector sites to ensure structural integrity of potential mounting surfaces or the best orientation and tilt for solar collectors.
- Apply ultraviolet radiation protection to prevent degradation of plumbing.
- Cut, miter, and glue piping insulation to insulate plumbing pipes and fittings.
- Cut felt, shingles, or strips of flashing to fit angles formed by walls, vents, or intersecting roof surfaces.
- Inspect problem roofs to determine the best repair procedures.
- Remove snow, water, or debris from roofs prior to applying roofing materials.
- Set up scaffolding to provide safe access to roofs.
- Estimate materials and labor required to complete roofing jobs.
- Cement or nail flashing strips of metal or shingle over joints to make them watertight.
- Install partially overlapping layers of material over roof insulation surfaces, using chalk lines, gauges on shingling hatchets, or lines on shingles.
- Apply plastic coatings, membranes, fiberglass, or felt over sloped roofs before applying shingles.
- Install, repair, or replace single-ply roofing systems, using waterproof sheet materials such as modified plastics, elastomeric, or other asphaltic compositions.
- Attach roofing paper to roofs in overlapping strips to form bases for other materials.
- Cover roofs or exterior walls of structures with slate, asphalt, aluminum, wood, gravel, gypsum, or related materials, using brushes, knives, punches, hammers, or other tools.
- Waterproof or damp-proof walls, floors, roofs, foundations, or basements by painting or spraying surfaces with waterproof coatings or by attaching waterproofing membranes to surfaces.
- Apply reflective roof coatings, such as special paints or single-ply roofing sheets, to existing roofs to reduce solar heat absorption.
- Apply alternate layers of hot asphalt or tar and roofing paper to roofs.
- Install vapor barriers or layers of insulation on flat roofs.
- Cover exposed nailheads with roofing cement or caulking to prevent water leakage or rust.
- Smooth rough spots to prepare surfaces for waterproofing, using hammers, chisels, or rubbing bricks.
- Glaze top layers to make a smooth finish or embed gravel in the bitumen for rough surfaces.
- Mop or pour hot asphalt or tar onto roof bases.
- Install attic ventilation systems, such as turbine vents, gable or ridge vents, or conventional or solar-powered exhaust fans.
- Install skylights on roofs to increase natural light inside structures or to reduce energy costs.
- Apply gravel or pebbles over top layers of roofs, using rakes or stiff-bristled brooms.
- Install solar roofing systems that have energy-collecting photovoltaic panels built into roofing membranes, shingles, or tiles.
- Spray roofs, sidings, or walls to bind, seal, insulate, or soundproof sections of structures, using spray guns, air compressors, or heaters.
- Attach solar panels to existing roofs, according to specifications and without damaging roofing materials or the structural integrity of buildings.
- Punch holes in slate, tile, terra cotta, or wooden shingles, using punches and hammers.
- Apply modular soil- and plant-containing grids over existing roof membranes to create green roofs.
- Install layers of vegetation-based green roofs, including protective membranes, drainage, aeration, water retention and filter layers, soil substrates, irrigation materials, and plants.
- Cut felt, shingles, or strips of flashing to fit angles formed by walls, vents, or intersecting roof surfaces.
