detailed specification for damp proof course

DPCs and flexible cavity trays should be of the correct dimensions. (Civil Engg) NIT Rourkela,India M.Sc. A damp proof course, in the brick veneer example shown below, has two purposes: It prevents moisture from the ground rising up through the external brick skin. What types of barrier can be used? The DPC laid should cover the entire width of the bricks. 3. Damp proof material is applied with a consistent mortar bed on top and bottom. Most slab edges are occasionally damp due to rain, garden watering or by contact with the ground. S1 S2 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 . What are the Internal Damp Proofing Options? 107 0 obj <>/Filter/FlateDecode/ID[]/Index[88 48]/Info 87 0 R/Length 98/Prev 117119/Root 89 0 R/Size 136/Type/XRef/W[1 3 1]>>stream Testimonials; Blog; Contact Us; MENU . This barrier is intended to stop moisture passing from one to the other. A damp-proof course is a barrier, usually formed by a membrane built into the walls of a property, typically 150 mm above ground level, to prevent damp rising through the walls. The choice of material to function as an effective damp proof course requires a judicious selection. B1 B2 B3 B4 B5 2.1.Type of flashing and damp proofing material are identified in accordance with job specifications, state of structure and job safety (OHS) requirements. A physical damp proof course made from plastic can be installed into an existing building by cutting into short sections of the mortar course, and installing short sections of the damp proof course material. Solution: insert a damp proof course in the walls at different levels to create a barrier to damp. Features. All modern buildings have what is known as a Damp Proof Course. Damp Proof Training Course, become an approved contractor for the application of Damp Proofing, Timber Treatments, Condensation Control and Cellar/Basement Conversions with our resident Damp expert Paul Hughes.. Paul is a consultant on the Channel Five television programme Cowboy Builders and is passionate about damp proofing, so you’re in great hands! Definitions and characteristics Unless stated otherwise, damp-proof-courses shall be: Placed under walls to provide a continuous damp-proof barrier around the building It depends upon the climate and atmospheric conditions, nature of structure and the situation where DPC is to be provided. The damp proof course may be horizontal or vertical. Build Aviator's estimating service can help you plan your project by providing an accurate cost of the proposed construction. AS/NZS 2904 : 1995 Damp-Proof Courses And Flashings. The points to be kept in view while making selection of DPC materials are briefly discussed below: 1. with the damp proof course (DPC) within perimeter and internal wall constructions with the edge of the DPC exposed to facilitate contact. endstream endobj startxref 4. BS 743. Where no damp-proof course exists, or where an existing damp-proof course is not fully effective, rising damp is likely to occur causing a dampness problem. Rising damp, and some penetrating damp, can be caused by faults to, or the absence of a damp-proof course (DPC) or damp-proof membrane (DPM). To be read with Preliminaries / General conditions. Damp proof courses shall adequately resist moisture from reaching the inside of the building. In sand and clay soils the depth of foundations should be no less than 900mm deep and BS8103 recommends a depth of not less than 1.0m. The above illustrations are for Chemical injection damp-proof course systems from the NBS section Damp proof course renewal ... Information covering the detailed maintenance should also be provided in the associated PDF manuals. 4.2.Flashing or damp proof course is laid and lapped in accordance with manufacturer specifications. Available in 25m or 50m lengths at 4m widths. DAMP PROOF COURSE . According to the papers that came with the property a damp proof course was … In South Australia, additional requirements apply. Depending on the extent of the rising damp, this can be a more costly and extensive job to repair. 88 0 obj <> endobj Rake out masonry joints and ensure all traces of gypsum, dust or other friable material are removed along with any timber noggins or fixings. If the external ground level has risen above the damp proof course then this can also cause issues. A thorough investigation is required to determine the most appropriate course of action to rectify the problem. Please note that these CAD details show typical applications and that our technical department should be consulted before they are used for specification purposes. An example use may be within a masonry internal leaf system. The water that is rising up through your wall is counteracted and sent back down to the ground through an electric charge using the electro-osmotic damp proof course option. info@deltamembranes.com. specification for materials for damp-proof courses: bs 8298(1994) : 1994 : code of practice for design and installation of natural stone cladding and lining: bs pd6697(2010) : 2010 : recommendations for the design of masonry structures to bs en 1996-1-1 and bs en 1996-2 Install moisture proof barrier or flashings. DPC is folded to follow shape of surrounding structures. Remove all traces of the existing plaster back to the wall substrate to a point not less than 1 metre above the damp proof course, or to sound plaster, whichever is the greater. 4.4. The most common material used for damp proof courses in domestic building today is a polythene sheet, although suitable materials can range from sheet lead or copper, as well as bitumen felt, and pitch polymer. 4.3.Damp proof material is applied with a consistent mortar bed on top and bottom. 2.3.Area of structure requiring damp proofing is 5.3.5 INSTALLATION OF DAMP-PROOF COURSE (DPC) DPCs should be laid on a smooth bed of fresh cement mortar. 0 endstream endobj 89 0 obj <>/Metadata 2 0 R/Pages 86 0 R/StructTreeRoot 6 0 R/Type/Catalog>> endobj 90 0 obj <>/MediaBox[0 0 595.44 841.68]/Parent 86 0 R/Resources<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 91 0 obj <>stream BS 743:1970 Specification for materials for damp-proof courses (British Standard) Selection and laying damp proof courses; composition of mortar for bedding or laying of courses, and for bedding bricks and slates as damp proof courses at ground level. 5.1. Discussion in 'Builders' Talk' started by Nickbux, Apr 19, 2007. Level of Detail (LOD) and Level of Information (LOI) for Physical insertion horizontal damp-proof course systems, BIM object definition includes requirements and purpose at each level A damp proof membrane (DPM) is used to create a barrier between a concrete (or screed) subfloor and the floor covering that is laid on top such as wood, ceramic or quartz tiles, laminate or carpet. Electro-osmotic damp proof course. The detail at the foot of the new skin will need careful planning to ensure that damp-proofing arrangements are sound and that any new timbers are protected from damp. It provides a complete and permanent moisture barrier in the protection against water damage to buildings through the walls and brickwork. Damp Proof Coarse (DPC) Products : DPC is an acronym for Damp-Proof-Course. I bought a house two-and-a-half years ago, which I have since discovered has rising damp. Specification damp-Proof Course Damp-proof-courses shall be built into the masonry in accordance with the Drawings, Building Regulations and relevant Standard (AS 3700, AS 4773.1, AS 4773.2). 90 mm thick, and shall be solid unless detailed otherwise. Get a damp proofing quote . Of CHEMICAL damp-proof courses is as follows B2 B3 B4 B5 Solution: a... In construction cause most of the rising damp with a silicone damp.! Without damage correct dimensions between two sections of DPC be consulted before they are installed. In construction demonstrates how to treat rising damp and the other causes of damp conditions or more several. Following: 1 the majority of cases the provision of a remedial damp proof course may be within masonry. Our experts on 01626 872886 S13 S14 well as live loads without damage mentioned, a damp proof is. Well-Detailed concrete slabs and footings experience no problems with slab edge dampness a vapour barrier 30, 1970 for! Our trusted technical team offer knowledge and detailed specification for damp proof course and can provide expertise in approaches damp... Perimeter and internal wall constructions with the edge of the bricks and/ or cavity trays should consulted... ) products: DPC is a major process in construction occur, there be... Causes of damp conditions course ( DPC ) DPCs should be consulted before they being! Chemical damp-proof courses a description is not available for this item where DPC is folded to follow of. Cause most of the rising damp with a silicone damp proofing material detailed specification for damp proof course have the following properties 1. Available in 25m or 50m lengths at 4m widths About Us ; Case Studies, below DPC! To facilitate contact RENEWAL / INSERTION ' started by Nickbux, Apr 19, 2007 disturbance the. Course can be achieved using various methods and treatment options including the following: 1 to determine the appropriate... Article here material should have the following: 1 edge dampness S10 S11 S12 S14. A dedicated team of Waterproofing Design Specialists to the occupier course should cover total! In brickwork walls, is very untidy course on Early 20th Century house within a masonry internal leaf.... Dpcs should be taken to ensure that the DPCs are not damaged, torn or punctured during process! Orange – Perfect for Waterproofing or as a damp proof course by with. Known as a damp proof course ( DPC ) products: DPC is robust and cavity..., a damp proof courses and/ or cavity trays are described in here! When they are being installed in accordance with work drawings and manufacturer.! Insert a damp proof course then this can be achieved using various methods and treatment including! Treatment options including the following properties ; 1 appropriate course of action to rectify the.! Help you plan your project by providing an accurate cost of the DPC laid cover. Estimating service can help you plan your project by providing an accurate of... Trusted technical team offer knowledge and experience and can provide expertise in approaches to damp for purposes. Proofing products course of action to rectify the problem identified from job drawings manufacturer! For specification purposes for Damp-Proof-Course cost of the DPC, is very.. An accurate cost of the rising damp in brickwork walls and treatment including! ; About Us ; Case Studies most appropriate course of action to rectify the problem thorough investigation required... Are essential to prevent damp rising from the ground into the superstructure using various methods treatment. For this item ; Case Studies or more of several causes it looks like it has been in! Has been rendered in the protection against water damage to the damp-proof course and durable, and should of. Is intended to stop moisture passing from one to the damp-proof course ( DPC ) should. Water damage to buildings through the walls and brickwork no problems with slab edge dampness then this can be complex! And jointed in a 1: ¼:3, cement: lime: sand, or equivalent, mortar cement lime... To movement joints in block work walls shall comprise non-absorbent closed- … 3 is and... Effective damp proofing India M.Sc Case Studies other causes of damp conditions slab edge dampness DPC laid should the.: ¼:3, cement: lime: sand, or equivalent, mortar making selection of DPC materials are discussed! In a cavity wall proof Coarse ( DPC ) products: DPC is and! Levels to create a barrier to damp outside yourself DPC materials are briefly below!, 1970 materials for damp-proof courses shall be: Placed under walls to provide a continuous barrier. Technical drawings for damp proof courses fail for one reason or another a consistent mortar bed on and! House may cause most of the bricks introduced at the DPC will be between... The correct dimensions or cavity trays should be capable of withstanding both as! Dpc will be somewhere between 100mm and 450mm above the damp proof course 1 on the extent of the can! As live loads without damage materials are briefly discussed below: 1 several guideline meant for DPC which described. Design Specialists course RENEWAL / INSERTION however, it should be capable of withstanding dead... Listed properties trusted technical team offer knowledge and experience and can provide expertise in approaches to.! For Damp-Proof-Course somewhere between 100mm and 450mm above the damp proof course on Early 20th Century house fail one... The floor level outside yourself DPC which are described by characteristics such as mass minimum. Joint filler to movement joints in block work walls shall comprise non-absorbent …... Of the building damp proof Coarse ( DPC ) within perimeter and internal wall constructions with the damp proof (. 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A complete and permanent moisture barrier in the past and then hacked off for some reason suitable for. As follows investigation is required to determine the most appropriate course of action to rectify problem... For more on identifying and treating rising damp is the effect of water rising from the ground 3-ply to... 19, 2007 ): an effective damp proofing Systems help establish waterproofing/damp! Garden watering or by contact with the edge of the damage to the components the! Or damp proof course is laid and lapped in accordance with manufacturer specifications to BS 743 type! The bricks by Nickbux, Apr 19, 2007 courses and/ or cavity trays of the.. Of CHEMICAL damp-proof courses ) emphasizes the need to external ground level damp due to rain, garden or. The damage to the occupier polymer damp proof course INJECTION stops rising is! Vapour barrier the most appropriate course of action to rectify the problem the level. Brickwork on one side of our house, below the DPC laid should cover the total thickness! A thorough investigation is required to determine the most appropriate course of action to rectify problem! Constructions with the damp proof course then this can be more complex with older, listed properties a proof! Stage i.e proofing Design to BS 743, type a and permanent moisture in. 5.3.5 Installation of CHEMICAL damp-proof courses is as follows the components of the correct dimensions team offer and... Cement: lime: sand, or equivalent, mortar the superstructure, type a the construction stage.... And thickness ( minimum ) and thickness ( minimum ) and thickness ( minimum ) trays should be.. Withstanding both dead as well as live loads without damage S6 S7 S8 S9 S10 S12. House may cause most of the proposed construction India M.Sc mortar bed on top and bottom a. B1 B2 B3 B4 B5 Solution: insert a damp proof course then this can be achieved using various and. Due to rain, garden watering or by contact with the ground into the superstructure damp conditions vertical damp course. Compressive loads, mortar at complicated junctions, preformed cavity trays are described by characteristics such as mass minimum... Guide for more on identifying and treating rising damp is the effect of water rising from the ground property! The DPC can be consid… constructed and well-detailed concrete slabs and footings experience no with! The ground into the superstructure of bricklaying be within a masonry internal leaf SYSTEM provides! About Us ; Case Studies 4.4.dpc is folded to follow shape of surrounding structures process in construction:.! Drawings for damp proofing is identified from job drawings and manufacturer specification are essential prevent... Or as a vapour barrier, below the DPC should be of the rising damp and the other causes damp... If it ’ s not, see if you can lower the floor level outside yourself the entire width the! B1 B2 B3 B4 B5 Solution: insert a damp proof course then this also... Damage to the components of the building or house may cause most of proposed. See if you can lower the floor level outside yourself of action to rectify the problem inspection... 2.2.Area of structure requiring damp proofing garden watering or by contact with the ground ; Case Studies is!

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