Enviroseal ProctorWrap Roof Sarking

Vapour Permeable Weather Barrier

Bradford Enviroseal ProctorWrap

Enviroseal ProctorWrap Roof Sarking is a vapour permeable product that allows water vapour to pass through it, whilst preventing the entry of liquid water and dust from outside. When used in colder climates where there is more moisture inside the home than outside, it allows moisture in the air to pass through the membrane before condensing to water (condensation) safely on the outside of the building frame where it does not damage the home.

This product is recommended for use in colder climates where the risk of condensation formation increases as the temperature of the outside environment falls, while the inside of the home is heated.

Enviroseal ProctorWrap also improves the air tightness of your roof cavity and reduces draughts, which helps insulation to work better and limits dust entering the home through gaps around down lights and vents.

This helps to improve energy efficiency as well as creating a healthier and more comfortable home.

Features & benefits
Permeability Performance Comparison
Managing the risk of condensation

Understanding Condensation Risk

Long perceived to be immune from condensation problems, Australia has seen an increase in the occurrence and severity of condensation problems across dissimilar climate zones due to changes in building design and increases in energy efficiency targets.

Energy efficient construction increases condensation risk

The drive for energy efficient buildings has resulted in higher levels of insulation in the roof space and walls, as well as reduced air leakage due to modern energy conscious building practices. As a result, this has dramatically changed the temperature and moisture balance within buildings, which has increased the risk of condensation formation within the building structure.

The possible consequences of condensation and the subsequent high humidity environment include;

  • Health Risks: Unseen mould growth behind wall linings and external cladding can be a health risk to the occupants, particularly the young or elderly.
  • Visual Deterioration: Deflection or staining of plasterboard linings as a result of moisture trapped behind the linings can cause ugly stains and swelling.
  • Structural Decay: Moisture trapped within the structure can result in long term corrosion of metal structures, timber rot, loosening of nails as timber swells, and cladding rot or swelling which can result in costly rectification work.
  • Energy Efficiency: A reduction in the buildings energy efficiency can occur due to moisture saturation of the insulation, which can result in loss of thermal performance.

What's the solution for controlling condensation?

Vapour permeable membranes are designed to allow moisture to pass through them whilst preventing the entry of wind driven rain and dust from the outside environment both during and after construction. When positioned against the outside of the building frames as a wall wrap or roof sarking, these membranes reduce the risk of condensation forming inside the home and building structure.

Enviroseal Proctorwrap key benefits:

  • Condensation protection for a healthier home
  • Improves air tightness and energy efficiency
  • Protects against the entry of wind, rain and dust
  • Reduces the risk of unseen mould growth