roofing school final exam |121
Complete Q’s and A’s
purpose of roof deck - -1.provide substrate
2.support leads
3.accommodated movements
4.fire resistance
- loads supported by roof decks - -non stationary, stationary, mobile,
immobile.
- aggregates used in lightweight insulating concrete - -uses lighter weight
aggregates such as perlite or vermiculite (polystyrene beads)
- aggregates used in structural lightweight concrete - -shale, clay,
expanded slate
- why replace decks made of nail-based insulation and OSB - -because they
are more likely to take on moisture
- wood-plank and wood-panel decks - -proper thickness is determined by
design loads
- description of best roofing system - -compatible(matched to) the buildings
specifications and traits
- reinforcement(i.e. ply) installation in a BUR membrane - -embedded in
layers of water proofing material( asphalt or coal-tar pitch bitumen)
- procedures when heating asphalt bitumen - -circulated/stirred
- installing BUR plies - -in a single day
- weatherproofing components in single-ply roofing - -thermoset and
thermoplastic
- fire resistance materials in low-slope membranes - -aggregate materials
(stones, rocks, pebbles)
- drip edge placement in asphalt shingle roofs - -extended over any
drippage, aka flange
- asphalt shingle description - -typically 12" x 36" in size
, - performance characteristics of granules in asphalt shingles - -protect
underlayment asphalt, increase fire resistance, color and texture varieties
- asphalt shingle components - -mat, asphalt and fillers, and mineral
granules
- asphalt shingle fasteners - -minimum of 6 nails in high wind areas
- vaulted ceilings and insulation - -heat build up can be insignificant
(additional ventilation might be necessary)
- risk of using nail-base insulation - -moisture build up/ condensation
- valleys needing to be enhanced for ice and snow protection - -open valleys
- impact of weather on roofing installation - -additional fasteners and
adhesives may be required
- wood shingles/ shake fasteners - -4 fasteners minimum
- improving a wood roof system - -minimum of 4;12 slope
- slate systems needing weatherproof membranes - -underlayment for all
slopes
- slate shingles fasteners - -copper nails
- slate fastening method - -by hand/ no fastening tools
- purpose of can't strip - -change roofing incline/ raise butt edge
- purpose of batten system - -strengthen the bond between slate shingles or
tiles and the roof deck
- PLACEMENT of expansion joints - -same plane and lire as the buildings
structural expansion joints
- PURPOSE of expansion joints - -reduces stresses and movements
- expansion joint covers - -break formed, pre-manufactured, hidden joints
- vapor movement - -warm moves to cold
- indicator of inadequate ventilation in steep slope roofing - -rusting, mold,
warfing, breakage, fastener back outs, corrosion
Complete Q’s and A’s
purpose of roof deck - -1.provide substrate
2.support leads
3.accommodated movements
4.fire resistance
- loads supported by roof decks - -non stationary, stationary, mobile,
immobile.
- aggregates used in lightweight insulating concrete - -uses lighter weight
aggregates such as perlite or vermiculite (polystyrene beads)
- aggregates used in structural lightweight concrete - -shale, clay,
expanded slate
- why replace decks made of nail-based insulation and OSB - -because they
are more likely to take on moisture
- wood-plank and wood-panel decks - -proper thickness is determined by
design loads
- description of best roofing system - -compatible(matched to) the buildings
specifications and traits
- reinforcement(i.e. ply) installation in a BUR membrane - -embedded in
layers of water proofing material( asphalt or coal-tar pitch bitumen)
- procedures when heating asphalt bitumen - -circulated/stirred
- installing BUR plies - -in a single day
- weatherproofing components in single-ply roofing - -thermoset and
thermoplastic
- fire resistance materials in low-slope membranes - -aggregate materials
(stones, rocks, pebbles)
- drip edge placement in asphalt shingle roofs - -extended over any
drippage, aka flange
- asphalt shingle description - -typically 12" x 36" in size
, - performance characteristics of granules in asphalt shingles - -protect
underlayment asphalt, increase fire resistance, color and texture varieties
- asphalt shingle components - -mat, asphalt and fillers, and mineral
granules
- asphalt shingle fasteners - -minimum of 6 nails in high wind areas
- vaulted ceilings and insulation - -heat build up can be insignificant
(additional ventilation might be necessary)
- risk of using nail-base insulation - -moisture build up/ condensation
- valleys needing to be enhanced for ice and snow protection - -open valleys
- impact of weather on roofing installation - -additional fasteners and
adhesives may be required
- wood shingles/ shake fasteners - -4 fasteners minimum
- improving a wood roof system - -minimum of 4;12 slope
- slate systems needing weatherproof membranes - -underlayment for all
slopes
- slate shingles fasteners - -copper nails
- slate fastening method - -by hand/ no fastening tools
- purpose of can't strip - -change roofing incline/ raise butt edge
- purpose of batten system - -strengthen the bond between slate shingles or
tiles and the roof deck
- PLACEMENT of expansion joints - -same plane and lire as the buildings
structural expansion joints
- PURPOSE of expansion joints - -reduces stresses and movements
- expansion joint covers - -break formed, pre-manufactured, hidden joints
- vapor movement - -warm moves to cold
- indicator of inadequate ventilation in steep slope roofing - -rusting, mold,
warfing, breakage, fastener back outs, corrosion
