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 foundations, and if not designed…
Here is a Classic Film Clip on How to Build a House This how to build a house film clip that was made back in 1946 is a must-watch for anyone contemplating doing any sort of building. Even though it was made so many years ago the process has more or less remained the same….
Picture Above: A freshly placed concrete slab still wet on the top surface Cold Weather and Foundations The surrounding local temperature has a big effect on the setting time of cold concrete. The steps to take with foundations during cold weather are outlined below: Chemical Reaction Hydration is the chemical reaction when cement and water…
A Concrete Placing Guide Cast Your foundations This guide will help owner-builders to cast the 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-story buildings with tiled or sheeted roofs in stable soil conditions, the…
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 mixes from 10MPa to 40MPa….
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 adding to them on an…
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 using it means. Some of…
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 concrete mixes and quantities being mixed together in the concrete mixes you use. Although the principles of mixing concrete and mortar are…
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 concrete slab is to act as a foundation, it…
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 flooring coverings and floor finishes for our homes and buildings, but in construction, there are only two basic types of floor…
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 min. But the authorities have,…
Regulations for Foundations-Part HA 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 Regulations specify general requirements for foundations,…
