Roof Design For Building

Flat garage roof design.

Roof design for building.

The butterfly roof is an. Continuing on from part 3. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. Position the square at the end of the rafter board with the tongue on your left and facing away from you.

Top 20 roof types and pros cons roof styles design architecture flat. It may consist of a flat roof on top but the main design element is the multi pitch sloped in what is essentially a hip roof on top of another hip frame. Top 15 roof types plus their pros cons read before you build. For buildings with low slope roofs less than 2 12 slope the wind speed at eave height is used.

1 3 5 design pressure coefficients for roof zones. Also known as the french roof the mansard is characteristic of french building architecture though many homes take advantage of it s framing design. Roof type chart 1. The two major categories of roof are flat and pitched and one of the main things that will determine the actual style of roof you need is the shape of the building.

The term gable refers to the triangular shape that is formed when the two pitched areas of your. Roofs can be designed and constructed to be either vented or unvented in any hygro thermal zone. You can go for an extended roof that covers a few feet outside the external walls of the house. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge.

Here we have a wood framed gable roof. Also known as pitched or peaked. This design is often incorporated to add to the beauty of the house. Flat roof designs are quite common in residential buildings.

It will be much more difficult to build a round roof onto a square building for instance so allow the shape of the structure to guide you. There is no great architectural splendour in these roofs. The a frame is very easy to identify. The bonnet roof is identified with the extending ledge around the base of the roof.

The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Add the length of the overhang beyond this mark and. In cold climates the primary purpose of attic ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic. Let s consider a basic gable wood roof framing design.

The other part of the.