TILED ROOFS

Pitched tiled roof with flat ceiling – CR001a

ProctorWrap HTR 

DCT Thermalcheck

 

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Location Tile, slate and shingle roofs
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane or equivalent with vapour resistance of not more than 0.26MNs/g
Installation: Lay horizontally across rafters starting at eaves. Secure in place with battens in accordance with AS/NZS 4200.2 and product user guide. Avoid blockages that would prevent free drainage of moisture.
Total R-Value: [Complete]
Location: Horizontal Ceiling
Insulation: [Glasswool/polyester] batt
Vapour Barrier: Fix DCT Thermal Laminate to inside of frame. [12.7mm Dow Tuff-R + [Size]mm Plasterboard]
DCT recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling. 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.

Pitched tiled roof with cathedral ceiling below rafters – CR003a

ProctorWrap HTR

Dow Tuff-R

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Location Tiled roof
Material
Sarking Membrane:
ProctorWrap HTR breathable (vapour permeable) membrane with vapour resistance of not more than 0.26MNs/g
Acoustic Insulation : [Glasswool/polyester] batt (not foil faced)
Installation : Lay horizontally across rafters starting at eaves. Secure in place with battens in accordance with AS/NZS 4200.2 and product user guide. Avoid blockages that would prevent free drainage of moisture.
Total R-Value: [Complete]
Fixing: Screw fix between roof sheet/batten and rafter/purlin.
Vapour Barrier: Fix DCT Thermal Laminate to underside of rafter. [12.7mm Dow Tuff-R + [Size]mm Plasterboard]
DCT recommend a condensation risk analysis is undertaken to determine if a vapour barrier is required at the ceiling. 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.

Pitched tiled roof with cathedral ceiling below rafters – CR003B

 

ProctorWrap HTR

Dow Styrofoam Roofmate

Download CAD PDF

Location To tile roof structure
Material
Sarking Membrane:
ProctorWrap HT breathable (vapour permeable) membrane or equivalent with vapour resistance of not more than 0.26MNs/g
Installation Lay horizontally across rafters starting at eaves. Secure in place with battens in accordance with AS/NZS 4200.2 and product user guide. Avoid blockages that would prevent free drainage of moisture.
Thermal Insulation : Dow Styrofoam Roofmate
Total R-Value: [Complete]
Fixing: Screw fix between counter batten and rafter.
Installation See manufacturers details in conjunction with finishes.
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.

Tiled roof with cathedral ceiling above exposed rafters – CR005a

ProctorWrap HT 

DCT Thermalcheck

Download CAD PDF

Location To tile roof structure.
Material
Sarking Membrane:
ProctorWrap HT breathable (vapour permeable) membrane  with vapour resistance of not more than 0.26MNs/g
Installation Lay horizontally across rafters starting at eaves. Secure in place with battens in accordance with AS/NZS 4200.2 and product user guide. Avoid blockages that would prevent free drainage of moisture.
Thermal Insulation : Dow Styrofoam Roofmate
Total R-Value: [Complete]
Fixing: Screw fix between counter batten and rafter.
Installation See manufacturers details in conjunction with finishes.
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.