Foundations

Danger of Tree Damage to Walls & Foundations – SANS 10400-H Annex-D Cracks and damage to walls and foundations are caused primarily by soils that contract and expand due to moisture content when the soil absorbs water and swells up and then shrinks when it dries out. This puts pressure on …

Here is a Classic Film Clip on How to Build a House This film clip that was made back in 1946 on how to build a house is a must watch for anyone contemplating doing any sort of building. Even though it was made so many years ago the process …

Cold Weather and Concrete Foundations The surrounding local temperature has a big effect on the setting time of concrete. The steps to take during cold weather are outlined below:  Chemical Reaction Hydration is the chemical reaction when cement and water are combined. This produces a strong binding medium for the …

A Concrete  Placing Guide   Concrete foundations This guide will help owner builders to cast foundations. These foundations are for external brick walls around a new house, or for extensions of an existing house. THE NHBRC (National Homebuilders Association Council) requirements for house foundations: For single storey buildings with a tiled or …

A Table for Concrete Mixes by Weight in Kilograms, by Bag, and by Cubic Meter, for Various Strengths We have had numerous requests for concrete mix ratios by weight, by volume, and by mass. Here is a table that was released by the Cement and Concrete Institute for trial concrete …

By-Law Definitions for Planning, Building and Zoning These definitions are mainly, but not exclusively, extracted from the Greater Metropolitan Area of Cape Town’s By-Laws Planning and Zoning definitions and explanations. They do and can relate to terms and phrases used nationally by other Municipalities and planning departments. We will be …

Definitions that are used in the Home Building Industry Words and definitions that are used in the home building industry are sometimes a little difficult to understand what is meant. Here we have a list of some terms that are used with an explanation of what it is the person …

Concrete Mixes & Batch Ratios For Different Applications The basic techniques that will enable you to cast a foundation or slab are relatively straightforward. The secret to success lies largely in the correct quantities being mixed together in the concrete mixes you use. Although the principles of mixing concrete  and …

Concrete Slab Step-by-Step Whether you are casting concrete for foundation footings to support a simple timber structure, or for a solid slab that will form the floor of a garden building to be built from wood, the principles are exactly the same. Of course, if the slab is to act …

Understanding what’s Underfoot The type of floors specified in building plans will determine the materials required as well as which sub-contractors or specialists are going to be involved in the building project. There are many floor coverings and floor finishes for our homes and buildings, but in construction there are only …

Building Regulations that Apply to Floors-Part J The Application of the National Building Regulations that apply to floors (Part J of SANS 10400) are certainly not exhaustive. In fact, if you think of how much of our house is floor, it’s what we might, in South Africa, describe as a biekie …

Regulations for Foundations-Part H A Focus on Safety Foundations, Part H, of any structure, large or small, must be built to safely transmit all loads of the building to the ground. If foundations are not correctly built, walls may crack and at worst, could even collapse. While the National Building …