RoofConstruction-Terminology

The Common Rafter and Purlin Roof As a civil engineer or roof contractor, you should aware of the construction of a roof and trussed roofs also types of roof construction in the industry. So, here our new article about roof rafter and purlin roof related to roof construction. The structure is most commonly used where there is a gable at both ends of the roof and is frequently to be found on terraced houses, as indicated in the below picture. This simple form of roof is illustrated in below picture. Its construction has been included here because of the now very common refurbishment of such houses. The wall plates are often simply bedded on mortar on either the inner skin of a cavity wall or, as is often the case with older terraced houses, on the inside edge of a solid 9 in. brick wall. Wall plates should be half lapped where they meet, and should not be less than 75 mm wide and 50 mm thick. They should be treated with preservative. Below picture sho...

What Are The Different Types Of Roofs? The roof is the uppermost portion of the building which protects the building from rain, wind, and sun. Various types of roofs used may be divided broadly into three types: 1. Flat roofs 2. Pitched roofs 3. Shells and folded plates. Flat roofs are used in plains where rainfall is less and climate is moderate. Pitched roofs are  preferred wherever rainfall is more. Shells and folded plate roofs are used to cover large  column-free areas required for auditoriums, factories, etc. Brief description of these roofs is  presented below: 1. Flat Roofs These roofs are nearly flat. However slight slope (not more than 10°) is given to  drain out the rainwater. All types of upper-story floors can serve as flat roofs. Many times  top of these roofs are treated with waterproofing materials-like mixing waterproofing  chemicals in concrete, providing Coba concrete. With the advent of reliable waterproofing  techni...