Unmasking the Threat: Scrim Wall Lining in Homes Built Pre-1935

Navigating the Risks of Scrim & Sarking

In homes erected before 1935, a silent peril might be concealed within the walls—Scrim & Sarking. Scrim, a material made from hessian or jute sacking, was commonly affixed to horizontally placed, rough-sawn wooden planks known as Sarking. While this historical practice once served a purpose, it now presents substantial risks in contemporary living.

Aging Scrim: The Fire Hazard

After enduring a century within your home, Scrim transforms into a potential fire hazard. It becomes dry and brittle, significantly elevating the risk of fire and the potential for extensive damage. The fire risk associated with Scrim & Sarking is notably higher than in modern homes.

Identification and Mitigation of Risk

Spotting Scrim & Sarking in your home is pivotal, particularly if it falls within the late 1800s to circa 1935 age bracket. Here are three tests to help you discern its presence:

  1. The Knock Test:

    • Sarking, as expected, feels like knocking on wood.

    • In contrast, Scrim & Sarking presents an exceedingly hard surface.

    • Scrim may not always be present where Sarking remains.

  2. The Floating Wallpaper Test:

    • Scrim was often concealed with wallpaper.

    • Over time, Scrim starts to separate from Sarking, creating the illusion of floating, bulging, or twisting wallpaper.

    • This is particularly evident in room corners.

  3. Close Inspection:

    • A meticulous examination can reveal hessian Scrim where wallpaper is loose or has peeled away.

Recommended Course of Action: Professional Assistance

If Scrim & Sarking is identified, we strongly recommend engaging a licensed builder for removal. This intricate task demands expertise to minimize the risk of damage. Additionally, it is crucial to communicate the discovery with your insurance company to ensure transparency and clarify any potential exclusions.

Conclusion: Balancing Preservation with Safety

Preserving the allure of historic homes should never compromise safety. Identifying and addressing the risks associated with Scrim & Sarking is a responsible step toward ensuring the safety of your property and its occupants. If you suspect the presence of Scrim & Sarking, take proactive measures to assess and address the situation, ultimately securing your home from potential fire hazards.