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The Importance Of Damp-Proof Courses

Satisfactory Essays

) Damp-proof course is a barrier, usually formed by a membrane built into the walls of a property, typically 150mm above ground level, to prevent damp rising through the walls.
Damp-proof courses are now essential in the construction of new buildings to prevent rising damp and in some situations to prevent penetrating damp. Approved document C of the Building Regulations, Site preparation and resistance to contaminants and moisture, suggests that a damp-proof course may be a, ‘…bituminous material, polyethylene, engineering bricks or slates in cement mortar or any other material that will prevent the passage of moisture.’
Wall ties
(Construction of cavity walls)

Connects nner and outer wall together so that if there is any movement they …show more content…

Cills are formed below the edge of a window and shaped or formed to slope out and project beyond the external face of the wall, so that water runs off. The cill should project at least 45 mm beyond the face of the wall below and have a drip on the underside of the projection.” (Walls, 2001)

Task 4 - Floors
a). Figure 3- concrete beam and block ground floor at the junction with an interval party wall.
b). Timber upper floors have many of the same advantages of timber suspended ground floors. These advantages are the availability of space for things such as; electrical cables and central heating pipes. In addition to this they also have flexibility, warmth and aesthetic appeal. To remove the risk of timber shrinkage and the cracking it causes to finishes, use timber engineered I-joists. (LP solid-start I-Joists)LP building products are suppliers of solid start I joists. “LP solid-start I-Joists are lightweight, straighter and more uniform in strength, stiffness and size than traditional lumber. They also offer wide flanges for greater stability.” There method of installation is as followed-
Materials/equipment-
• Joists
• Boarded coverings
• Optional to have herringbone strutting between joists to prevent warping

Storage & Handling-
• Should be stored and wrapped in bundles no more than 10 feet high. Support and separate the bundles with two by four pieces of wood, space no more than 10 feet apart.
• Don’t store in direct contact with ground or allow the

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