METAL ROOFS

Pitched metal roof with flat ceiling – CR002

ProctorWrap HTR

DCT PIR (vapour barrier)

 

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HTR should be laid directly under metal roofing and above the
insulation to form a continuous membrane over the entire area of the roof,
allowing any water to drain down to the gutters.
Fixing:On low pitched roofs if ProctorWrap HTR is unsupported, laps should be
taped to prevent moisture draining back into the insulation
Thermal Break:Fit [thickness] mm DCT Thermal Break strip min 300kpa
Fixing:Screw fix between thermal break strips and purlin.
Acoustic Insulation:DCT Vento R [Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Horizontal Ceiling
Insulation:DCT Vento R [Glasswool/polyester] batt
Vapour Barrier:Fix 13mm DCT PIR to underside of frame.
Standard Sizes =25,50,75mm DCT recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling. Foil backed bulk insulation has a high risk of condensation if there is less than 2/3 of the total insulation on the cold side of the foil.
There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis. The above is typical for a cold and temperate climate.
With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HTR and the
roofing.

Pitched metal roof with flat ceiling – RR001a

ProctorWrap HT 

DCT Thermalcheck

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.Fixing on low pitched roofs if ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Fixing:Screw fix between thermal break strips and purlin.
Acoustic Insulation:DCT Vento R [Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Horizontal Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix DCT Thermal Laminate to underside of frame  [12.7mm Tuff-R + [Size]mm Plasterboard]
There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis. With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Metal roof with cathedral celing below rafters – CR004b

ProctorWrap HT 

DCT Thermalcheck

Dow Styrofoam Deckmate

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.Fixing on low pitched roofs if Proctor Roofshield is unsupported, laps should be taped to prevent moisture draining back into the insulation
Thermal Break:Fit [thickness] mm Dow Deckmate 300 strips fixed to the purlin.
Fixing:Screw fix between thermal break strips and purlin.
Acoustic Insulation:[Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix  DCT Thermal Laminate to underside of frame [12.7mm Tuff-R + [Size]mm Plasterboard]
Dow Deckmate 300, Width = [Frame width] x Thickness = [0.5 x Blanket Thickness].  Standard Sizes = 25, 50 and 75mm. There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.

With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Metal roof with cathedral ceiling below rafters – CR004a

ProctorWrap HT 

DCT Thermalcheck

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:Lay ProctorWrap HT horizontally across the insulation rafters starting at eaves. Secure in place with battens in accordance with AS/NZS 4200.2. Avoid blockages that would prevent free drainage.Fixing on low pitched roofs if ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation.
Insulation:[Glasswool/polyester] batt (not foil backed)
Vapour Barrier:Fix DCT Thermal Laminate to inside of frame. [12.7mm Dow Tuff-R +[Size]mm Plasterboard]
Dow Deckmate 300, Width = [Frame width] x Thickness = [0.5 x Blanket Thickness].  Standard Sizes = 25, 50 and 75mm. There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.

With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Metal roof with cathedral ceiling below rafters – CR004a

ProctorWrap HT 

DCT Thermalcheck

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.Fixing on low pitched roofs if ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Insulation:[Glasswool/polyester] batt (not foil backed)
Vapour Barrier:Fix  DCT Thermal Laminate to underside of battens [Size]mm Tuff-R + [Size]mm Plasterboard

There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.

With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Metal roof with cathedral ceiling below rafters – RR002a

ProctorWrap HT 

DCT Thermalcheck

Download CAD PDF

Location:Under profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.Fixing on low pitched roofs if ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Acoustic Insulation:[Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix  DCT Thermal Laminate to underside of frame  [12.7mm Tuff-R + [Size]mm Plasterboard]

There are a large number of factors that need to be considered in assessing and managing
condensation risk. Such factors include the local climate, building use, position, thickness and type of
insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.

With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Metal roof with cathedral ceiling below rafters – RR002a

ProctorWrap HTR 

Dow Styrofoam Thermal Break Strips

DCT Thermalcheck

Location:Under profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.
Fixing:If ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Thermal Break:Fit [thickness] mm Dow Deckmate 300 strips fixed to the purlin.
Fixing:Screw fix between thermal break strip and purlin.
Acoustic Insulation:[Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix  DCT Thermal Laminate to underside of frame  [12.7mm Tuff-R + [Size]mm Plasterboard]
Dow Deckmate 300, Width = [Frame width] x Thickness = [0.5 x Blanket Thickness].  Standard Sizes = 25, 50 and 75mm. There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.
With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Low pitched metal roof with plasterboard ceiling above exposed rafters – CR008a

ProctorWrap HTR 

DCT Thermalcheck

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.
Fixing:If ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Acoustic Insulation:[Glasswool/polyester] batt (not foil backed)
Vapour Barrier:Fix  DCT Thermal Laminate to underside of battens [Size]mm Tuff-R + [Size]mm Plasterboard
Standard Sizes =25,50,75mm DCT recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling. Foil backed bulk insulation has a high risk of condensation if there is less than 2/3 of the total insulation on the cold side of the foil.
There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis. The above is typical for a cold and temperate climate.
With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HTR and the
roofing.

Low pitched metal roof with plasterboard ceiling – RR007a

ProctorWrap HTR 

DCT Thermalcheck

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.
Fixing:If ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation
Fixing:Screw fix between thermal break strip and purlin.
Acoustic Insulation:[Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix  DCT Thermal Laminate to underside of frame  [12.7mm Tuff-R + [Size]mm Plasterboard]
There are a large number of factors that need to be considered in assessing and managing
condensation risk. Such factors include the local climate, building use, position, thickness and type of
insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis. With standing seam roofing ensure that a drainage mat is used between the ProctorWrap HT and the roofing.

Low pitched metal roof with suspended ceiling – CR010a

ProctorWrap HTR 

Dow Tuff-R or Dow Thermax LD

Dow Styrofoam Deckmate Thermal Break Strips

Download CAD PDF

LocationUnder profiled metal roofing
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour
resistance of not more than 0.26 MNs/g.
Installation:ProctorWrap HT should be laid directly under metal roofing and above the insulation to form a continuous membrane over the entire area of the roof, allowing any water to drain down to the gutters.
Fixing:If ProctorWrap HT is unsupported, laps should be taped to prevent moisture draining back into the insulation.
Thermal Break:Fit [thickness] mm Dow Deckmate 300 strips fixed to the purlin.
Fixing:Screw fix between thermal break strip and purlin.
Acoustic Insulation:[Glasswool/polyester] batt (not foil faced)
Safety Mesh:To AS 4389
Total R-Value:[Complete]
Location:Horizontal Ceiling
Insulation:[Glasswool/polyester] batt
Vapour Barrier:Fix Dow Tuff-R or Dow Thermax to underside of frame  [12.7mm Tuff-R + [Size]mm Plasterboard]
Dow Deckmate 300, Width = [Frame width] x Thickness = [0.5 x Blanket Thickness].  Standard Sizes = 25, 50 and 75mm. There are a large number of factors that need to be considered in assessing and managing condensation risk. Such factors include the local climate, building use, position, thickness and type of insulation, position and integrity of vapour barriers, and the degree and location of mechanical or passive ventilation both in the roof space and the interior. It is highly recommended that designers undertake a condensation risk analysis.