Sarking is a panel used as a substrate in construction of walls or roofs. It acts as a barrier to keep moisture out and reflect heat. Different materials can be used, and it can be covered with wallpaper or plaster. The term is used in various ways in construction.
The term “sarking” is used in many different ways in construction. In general it is a panel that is used as a substrate, and can be used in the construction of walls, or in the construction of a roof. In walls, people may refer to “scrim and sarking” construction, a technique used in many older homes. People doing renovations and repairs on such homes may choose to reproduce this construction technique to preserve the character of the structure.
On a roof, sarking is used as part of the underlayment or roof membrane. It acts as a barrier to keep moisture from entering the roof and house and also helps reflect heat. The subfloor will help a home stay cool in the summer and keep the heat inside during the winter, keeping temperatures stable. It can also help make a roof more resistant to wind, which can be invaluable in some climates.
Different materials can be used for sarking on a roof. Historically, it was done with boards known as sarking boards that were laid under the shingles, shingles, or other roofing materials used. Modern underlays can be made of felt or other materials and are often laid over a secondary barrier material. It is common for roofs to include several layers of subgrade in their construction, and this may in fact be required by building codes in some regions of the world.
In the walls, sarking is done in the form of flat panels which were historically covered with a fabric known as burlap. Wallpaper, plaster or other finishes can be applied directly to the canvas and sarking. In renovating older homes, people may notice scrim and sarking construction once they get past the layers of materials added over the years. For those wishing to restore walls using this technique, the old canvas can be removed and replaced with new material after any damage to the subframes has been repaired.
The type of underlying material under discussion is usually evident from the context. The term “sarking” is used in several countries to refer to various aspects of construction. If you’re not sure what you’re talking about, a quick clarifying question should solve the problem; many people who work in construction are aware that various terms are sometimes used and will be happy to explain.
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