Major Work Activity F - Assesses, maintains and repairs roof
Table of Contents
- Task F-15 Assesses roof condition
- Task F-16 Maintains and repairs low slope roofing
- Task F-17 Maintains and repairs steep slope roofing
Task F-15 Assesses roof condition
Task descriptor
Roofers assess roof conditions to determine what actions are required to maintain a roof’s performance.
F-15.01 Performs roof inspections
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-15.01.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-15.01.02P | discuss problem areas with client or occupant | discussions with client or occupant are held to investigate leaks and potential causes |
| F-15.01.03P | identify type of roofing system | type of roofing system is identified |
| F-15.01.04P | visually inspect building structure for signs of environmental and physical damage | building structure is visually inspected for signs of environmental and physical damage to identify extent of damage and area to be maintained or repaired |
| F-15.01.05P | identify areas of roof that require immediate or future repair | areas of roof that require immediate or future repair are identified by performing visual inspection for defects and deficiencies |
| F-15.01.06P | identify cause of defects and deficiencies | cause of defects and deficiencies are identified |
| F-15.01.07P | record and report inspection observations | inspection observations are recorded and reported |
Range of variables
- tools and equipment include: cameras, core cutters (cut tester), portable recording devices, thermal scanning equipment, moisture probes, drones
- types of roofing systems include: single ply, modified bitumen, built-up roofing, inverted roofing, low slope and steep slope roofing
- defects and deficiencies include: leaks, alligatoring, bare spots, ballast displacement, deteriorated caulking and sealants, deteriorated membranes, blisters, wrinkles, bad laps, mechanical fasteners, loose, missing and damaged tiles, flashings and shingles, penting (single-ply)
- cause of defects and deficiencies include: flawed or inappropriate roof or building design, faulty workmanship, defective materials, building movement, abuse, lack of timely, appropriate roof maintenance, age-related weathering and deterioration of roofing system components, environmental conditions, lack of insulation
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-15.01.01L | demonstrate knowledge of roofing systems, their characteristics and applications | define terminology associated with roofing systems |
| identify types of roofing systems, and describe their characteristics and applications | ||
| F-15.01.02L | demonstrate knowledge of procedures to perform roof inspections | identify tools and equipment used to perform roof inspections, and describe their procedures for use |
| describe procedures to perform roof inspections | ||
| describe when to inspect roof | ||
| identify where to look for defects and deficiencies | ||
| identify history of leaks and past repairs | ||
| identify types of defects and deficiencies | ||
| identify potential causes of damage | ||
| identify composition of roof |
Range of variables
- types of roofing systems include: single ply, modified bitumen, built-up roofing, inverted roofing, low slope and steep slope roofing
- tools and equipment include: cameras, core cutters (cut tester), portable recording devices, thermal scanning equipment, moisture probes, drones
- defects and deficiencies include: leaks, alligatoring, bare spots, ballast displacement, deteriorated caulking and sealants, deteriorated membranes, blisters, wrinkles, bad laps, mechanical fasteners, loose, missing and damaged tiles, flashings and shingles, penting (single-ply)
- potential causes of damage include: extreme weather events, maintenance personnel, vandalism, animals
F-15.02 Performs cut test
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-15.02.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-15.02.02P | test roofing system components | roofing system components are tested by removing a sample area |
| F-15.02.03P | record and report cut test findings | cut test findings are recorded and reported |
| F-15.02.04P | patch cut test area temporarily or permanently | cut test area is patched temporarily or permanently |
Range of variables
- tools and equipment include: saws, knives, trowels, cameras, thermal scanning equipment, core cutters (cut tester), moisture detection devices, torches, measuring tapes, hot-air welders, adhesives
- findings include: roofing system components, moisture, contamination, deterioration
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-15.02.01L | demonstrate knowledge of procedures to perform a cut test | identify tools and equipment used to perform a cut test, and describe their procedures for use |
| describe procedures to perform a cut test | ||
| describe when and where to perform a cut test | ||
| describe procedures to patch area where a cut test was performed |
Range of variables
- tools and equipment include: saws, knives, trowels, cameras, thermal scanning equipment, core cutters (cut tester), moisture detection devices, torches, measuring tapes, hot-air welders, adhesives
F-15.03 Determines maintenance or repair required
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-15.03.01P | determine next steps | next steps are determined according to cut test and inspection results |
| F-15.03.02P | determine feasibility of maintenance or repair | feasibility of maintenance or repair is determined according to roofing system condition |
| F-15.03.03P | determine timeframe required for inspections and preventative maintenance | timeframe required for inspections and preventative maintenance is determined according to manufacturers’ warranty and client requirements |
| F-15.03.04P | determine if temporary or permanent repair can be performed | temporary or permanent repair is determined according to results of inspection and roof condition |
| F-15.03.05P | inform client of inspection report results and recommendations for next steps | client is informed of inspection report results and recommendations for next steps |
Range of variables
- next steps are: additional investigation, maintenance, repair or replacement
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-15.03.01L | demonstrate knowledge of procedures to determine maintenance or repair required on roofing system | describe procedures to determine maintenance or repair required on roofing system |
| identify types of maintenance performed on a roofing system | ||
| describe procedures used to determine timeframe required for inspections and preventative maintenance | ||
| identify repair methods |
Range of variables
- types of maintenance include: caulking, refilling penetration pockets, securing loose flashing, replacing deteriorated roofing components, replacing deteriorated steep slope roofing materials, clearing drainage systems
Task F-16 Maintains and repairs low slope roofing
Task descriptor
Roofers perform roof maintenance and repair of low slope roofing to address normal wear and damage in order to extend the service life of roofing systems.
F-16.01 Maintains low slope roofing
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-16.01.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-16.01.02P | remove obstructions from drains, scuppers and gutters | obstructions are removed from drains, scuppers and gutters |
| F-16.01.03P | dismantle and reassemble drain components | drain components are dismantled and reassembled to reseal |
| F-16.01.04P | reseal drains and scuppers | drains and scuppers are resealed to return to serviceable condition |
| F-16.01.05P | verify penetration pocket is well secured | penetration pocket is well secured without separations |
| F-16.01.06P | clean surface of existing sealant | surface of existing sealant is cleaned for adhesion of replacement sealant |
| F-16.01.07P | apply sealant compatible with roofing system | sealant compatible with roofing system is applied according to manufacturers’ specifications |
| F-16.01.08P | remove old caulking | old caulking is removed by using methods |
| F-16.01.09P | clean, dry and prime surface prior to maintenance | surface is cleaned, dried and primed prior to maintenance |
| F-16.01.10P | reseal membranes | membranes are resealed to serviceable condition according to type of membrane |
| F-16.01.11P | determine application methods of surfacing | application methods of surfacing are determined according to type of roof membrane |
| F-16.01.12P | resurface membrane with materials | membrane is resurfaced with materials |
| F-16.01.13P | reinstall fasteners | fasteners are reinstalled to secure roofing components |
| F-16.01.14P | select type and colour of caulking | type and colour of caulking is selected to match adjacent finishes |
| F-16.01.15P | reapply caulking | caulking is reapplied using caulking gun and tooling |
| F-16.01.16P | remove excessive snow and ice from roof | excessive snow and ice are removed without causing damage to roofing materials |
Range of variables
- tools and equipment include: wrenches, drills/drivers, caulking guns, blowers, trowels, knives, scrapers, hammers, glazing bars, torches, kettles, melters, hot air welding equipment, rollers, shovels, brooms, pry-bars, tin/metal snips, hatchets, PPE
- obstructions include: debris, vegetation, construction material
- drain components include: clamps, strainer baskets, drain hardware, backflow preventers
- methods include: pulling, scraping, cutting
- materials include: granules, aggregate, coatings, ballast
- fasteners include: screws, nails, clips
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-16.01.01L | demonstrate knowledge of tools and equipment used for maintenance of low slope roofing | identify tools and equipment used to maintain low slope roofing and describe their procedures for use |
| F-16.01.02L | demonstrate knowledge of roof drains, gutters and scuppers, their components, characteristics and applications | define terminology associated with roof drains, gutters and scuppers, and their components |
| identify types of drains, gutters and scuppers, and describe their characteristics and applications | ||
| identify drain components, and describe their characteristics and applications | ||
| F-16.01.03L | demonstrate knowledge of procedures to maintain roof drains, gutters and scuppers | describe procedures to maintain roof drains, gutters and scuppers |
| describe procedures to dismantle and reassemble roof drains, gutters and scuppers, and drain components | ||
| describe procedures to seal roof drains, gutters and scuppers | ||
| F-16.01.04L | demonstrate knowledge of penetration pockets, their characteristics and applications | define terminology associated with penetration pockets |
| identify types of penetration pockets, and describe their characteristics and applications | ||
| F-16.01.05L | demonstrate knowledge of procedures to refill penetration pockets | describe procedures to refill penetration pockets |
| identify types of sealants used to seal penetration pockets | ||
| describe effect of environmental conditions on sealants | ||
| identify curing times for sealants | ||
| F-16.01.06L | demonstrate knowledge of caulking, its characteristics and applications | define terminology associated with caulking |
| identify types of caulking, and describe their characteristics and application | ||
| F-16.01.07L | demonstrate knowledge of procedures to replace deteriorated caulking | describe methods used to remove old caulking |
| describe effect of environmental conditions on caulking | ||
| identify curing times for caulking | ||
| F-16.01.08L | demonstrate knowledge of membranes, their characteristics and applications | define terminology associated with membranes |
| identify types of membranes, and describe their characteristics and applications | ||
| F-16.01.09L | demonstrate knowledge of ballast/surfacing, their characteristics and applications | define terminology associated with ballast/surfacing |
| identify types of ballast/surfacing, and describe their characteristics and applications | ||
| describe effects of environmental conditions on surfaces | ||
| F-16.01.10L | demonstrate knowledge of metal flashings, their characteristics and applications | define terminology associated with metal flashings |
| identify types of metal flashings, and describe their characteristics and applications | ||
| F-16.01.11L | demonstrate knowledge of procedures to re-secure loose metal flashings | describe procedures used to re-secure loose metal flashings |
| identify types of fasteners used to re-secure metal flashings | ||
| F-16.01.12L | demonstrate knowledge of excessive snow and ice removal practices | describe procedures for removing snow |
| describe procedures for removing ice |
Range of variables
- tools and equipment include: wrenches, drills/drivers, caulking guns, blowers, trowels, knives, scrapers, hammers, glazing bars, torches, kettles, melters, hot air welding equipment, rollers, shovels, brooms, pry-bars, tin/metal snips, hatchets, PPE
- types of drains, gutters and scuppers include: internal, external, overflow
- drain components include: clamps, strainer baskets, drain hardware, backflow preventers
- types of penetration pockets include: metal, composite
- types of sealants include:mastic, pourable sealer, rubberized asphalt (polybitumen)
- environmental conditions include: temperature, wind, moisture
- types of caulking include: silicone, polyurethane, latex, general-purpose
- methods include: pulling, scraping, cutting
- types of ballast/surfacing include: granular, coating, aggregate, pavers, rigid insulation
- types of metal flashings include: wall, base, parapet, cap, termination, reglet, drip edge, aggregate stop, thru-wall, saddle
- fasteners include: screws, nails, clips
F-16.02 Repairs low slope roofing
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-16.02.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-16.02.02P | remove and replace damaged roofing materials | damaged roofing materials are removed and replaced |
| F-16.02.03P | remove and replace components | components are removed and replaced according to industry practices |
| F-16.02.04P | reposition and re-secure displaced roofing materials | displaced roofing materials are repositioned and re-secured according to industry practices |
Range of variables
- tools and equipment include: caulking guns, torches, trowels, scrapers, brooms, mops, shovels, hot air welding equipment, blowers
- roofing materials include: roof membranes, liquid-applied materials, ballast, mastics, sealers, insulation
- components include: vent stacks, pipe boots, penetration (roof anchors, gas lines, steel beam) flashings, penetration pockets
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-16.02.01L | demonstrate knowledge of procedures to repair low slope roofing | identify tools and equipment used to repair low slope roofing, and describe their procedures for use |
| describe procedures used to remove and replace roofing materials and components | ||
| F-16.02.02L | demonstrate knowledge of procedures to repair membrane defects | describe techniques used to repair membrane defects |
| F-16.02.03L | demonstrate knowledge of procedures to reapply surfacing/ballast to bare areas | describe procedures used to reapply surfacing/ballast to bare areas |
| determine when surface requires resurfacing | ||
| describe importance of compatibility of materials used |
Range of variables
- tools and equipment include: caulking guns, torches, trowels, scrapers, brooms, mops, shovels, hot air welding equipment, blowers
- roofing materials include: roof membranes, liquid-applied materials, ballast, mastics, sealers, insulation
- components include: vent stacks, pipe boots, penetration (roof anchors, gas lines, steel beam) flashings, penetration pockets
- membrane defects include: blisters, ridges, splits, rips, delamination, laps
- techniques include: hot application, cold application, troweling, de-granulating
Task F-17 Maintains and repairs steep slope roofing
Task descriptor
Roofers perform roof maintenance and repair of steep slope roofing to address normal wear and damage in order to extend the service life of roofing systems.
F-17.01 Maintains steep slope roofing
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-17.01.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-17.01.02P | select roofing materials required for maintenance | roofing materials required for maintenance are selected |
| F-17.01.03P | remove obstructions from gutters | obstructions are removed from gutters |
| F-17.01.04P | dismantle and reassemble gutter components | gutter components are dismantled and reassembled to reseal |
| F-17.01.05P | reseal gutter seams | gutter seams are resealed to return to serviceable condition |
| F-17.01.06P | verify penetration flashings are well-secured | penetration flashings are well secured without separations |
| F-17.01.07P | select and use sealant compatible with roofing system | sealant compatible with roofing system is selected and used |
| F-17.01.08P | install new sealer | new sealer is installed according to manufacturers’ specifications |
| F-17.01.09P | remove old caulking | old caulking is removed by using methods |
| F-17.01.10P | clean, dry and prime surface prior to maintenance | surface is cleaned, dried and primed prior to maintenance |
| F-17.01.11P | reinstall fasteners | fasteners are reinstalled to secure metal flashings and roofing materials |
| F-17.01.12P | select type and colour of caulking | type and colour of caulking is selected to match adjacent finishes |
| F-17.01.13P | reapply caulking | caulking is reapplied using caulking gun and tooling |
| F-17.01.14P | remove excessive snow and ice from roof | excessive snow and ice are removed without causing damage to roofing materials |
Range of variables
- tools and equipment include: wrenches, drills/drivers, caulking guns, blowers, trowels, knives, hammer, glazing bars, rollers, shovels, brooms, pry-bars, rippers, grinders, seamers, clamps, tin/metal snips, hatchets, PPE
- roofing materials include: shingles, tiles, sheet metal, mastics, fasteners
- obstructions include: debris, vegetation, construction material
- gutter components include: downpipes, end caps, elbows, screens, heat tracing
- methods include: pulling, scraping, cutting
- fasteners include: screws, nails, clips
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-17.01.01L | demonstrate knowledge of tools and equipment used for maintenance of steep slope roofing | identify tools and equipment used to maintain steep slope roofing and describe their procedures for use |
| F-17.01.02L | demonstrate knowledge of roof drainage systems, their characteristics and applications | define terminology associated with roof drainage systems, and gutter components |
| identify types of gutters, describe their characteristics and applications | ||
| identify gutter components, describe their characteristics and applications | ||
| F-17.01.03L | demonstrate knowledge of procedures to maintain roof drainage systems | describe procedures to maintain roof drainage systems |
| describe procedures to dismantle and reassemble roof drainage systems, and gutter components | ||
| describe procedures to seal roof gutters | ||
| F-17.01.04L | demonstrate knowledge of penetration flashings, their characteristics and applications | define terminology associated with penetration flashings |
| identify types of penetration flashings, and describe their characteristics and applications | ||
| F-17.01.05L | demonstrate knowledge of procedures to maintain penetration flashings | describe procedures to maintain penetration flashings |
| identify types of sealants used to seal penetration flashings | ||
| describe effect of environmental conditions on sealants | ||
| F-17.01.06L | demonstrate knowledge of caulking, its characteristics and applications | define terminology associated with caulking |
| identify types of caulking, and describe their characteristics and application | ||
| F-17.01.07L | demonstrate knowledge of procedures to replace deteriorated caulking | describe methods used to remove old caulking |
| describe effect of environmental conditions on caulking | ||
| identify curing times for caulking | ||
| F-17.01.08L | demonstrate knowledge of metal flashings, their characteristics and applications | define terminology associated with metal flashings |
| identify types of metal flashings, and describe their characteristics and applications | ||
| F-17.01.09L | demonstrate knowledge of procedures to re-secure loose metal flashings | describe procedures used to re-secure loose metal flashings |
| identify types of fasteners used to re-secure metal flashings | ||
| F-17.01.10L | demonstrate knowledge of excessive snow and ice removal practices | describe procedures for removing snow |
| describe procedures for removing ice |
Range of variables
- tools and equipment include: wrenches, drills/drivers, caulking guns, blowers, trowels, knives, hammer, glazing bars, rollers, shovels, brooms, pry-bars, rippers, grinders, seamers, clamps, tin/metal snips, hatchets, PPE
- gutter components include: downpipes, end caps, elbows, screens, heat tracing
- types of gutters include: internal, external
- types of penetration flashings include: metal, flexible, composite
- types of sealants include:mastic, polyurethane, silicone, rubberized asphalt (polybitumen)
- environmental conditions include: temperature, wind, moisture
- types of caulking include: silicone, polyurethane, latex, general-purpose
- methods include: pulling, scraping, cutting
- types of metal flashings include: wall, base, parapet, cap, termination, reglet, drip edge, aggregate stop, thru-wall, saddle
- fasteners include: screws, nails, clips
F-17.02 Repairs steep slope roofing
| NL | NS | PE | NB | QC | ON | MB | SK | AB | BC | NT | YT | NU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NV | yes | NV | yes | NV | yes | yes | yes | NV | yes | NV | NV | NV |
| Reference Code | Performance Criteria | Evidence of Attainment |
|---|---|---|
| F-17.02.01P | select and use tools and equipment | tools and equipment are selected and used according to industry practices |
| F-17.02.02P | remove and replace damaged roofing materials | damaged roofing materials are removed and replaced |
| F-17.02.03P | replace and reinstall gutter components | gutter components are replaced and reinstalled according to industry practices |
| F-17.02.04P | install fasteners | fasteners are installed to secure flashings and roofing materials |
| F-17.02.05P | remove and replace components | components are removed and replaced according to industry practices |
| F-17.02.06P | reposition or replace and re-secure displaced roofing materials | displaced roofing materials are repositioned or replaced and re-secured |
| F-17.02.07P | apply caulking | caulking is applied according to manufacturers’ specifications to ensure seal of flashing |
Range of variables
- tools and equipment include: wrenches, screwdrivers, caulking guns, blowers, trowels, knives, hammers, glazing bars, rollers, shovels, brooms, pry-bars, rippers, drills, grinders, seamers, clamps, tin/metal snips, hatchets, PPE
- roofing materials include: shingles, tiles, sheet metal, mastics, underlayments, ice guards
- gutter components include: downpipes, end caps, elbows, screens, heat tracing
- fasteners include: screws, nails, clips
- components include: vent stacks, pipe boots, penetration flashings, skylights
| Reference Code | Learning Outcomes | Learning Objectives |
|---|---|---|
| F-17.02.01L | demonstrate knowledge of procedures to repair steep slope roofing | identify tools and equipment used to repair steep slope roofing, and describe their procedures for use |
| describe procedures used to remove and replace roofing materials, drainage systems and components | ||
| F-17.02.02L | demonstrate knowledge of metal flashings, their characteristics and applications | define terminology associated with metal flashings |
| identify types of metal flashings, and describe their characteristics and applications | ||
| F-17.02.03L | demonstrate knowledge of procedures to re-secure loose metal flashings or install new flashings | identify tools and equipment used to re-secure loose metal flashings, and describe their procedures for use |
| describe procedures used to re-secure loose metal flashings | ||
| identify types of fasteners used to re-secure metal flashings |
Range of variables
- tools and equipment include: wrenches, screwdrivers, caulking guns, blowers, trowels, knives, hammers, glazing bars, rollers, shovels, brooms, pry-bars, rippers, drills, grinders, seamers, clamps, tin/metal snips, hatchets, PPE
- roofing materials include: shingles, tiles, sheet metal, mastics, underlayments, ice guards
- components include: vent stacks, pipe boots, penetration flashings, skylights
- types of metal flashings include: drip edge, rake edge, chimney, base, counter, step, thru-wall, back pan, valley, reglet, pan, cap
- fasteners include: screws, nails, clips