Roof Design For Building

For buildings with low slope roofs less than 2 12 slope the wind speed at eave height is used.

Roof design for building. The term gable refers to the triangular shape that is formed when the two pitched areas of your. Floor beam span tables of residential structural design we will now look at roof rafter and beam design. It s steep pointed roof which extends all the way to the ground. Roofs can be designed and constructed to be either vented or unvented in any hygro thermal zone.

Also known as the french roof the mansard is characteristic of french building architecture though many homes take advantage of it s framing design. Here we have a wood framed gable roof. 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. 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.

1 3 5 design pressure coefficients for roof zones. Position the square at the end of the rafter board with the tongue on your left and facing away from you. Most flat roofs are not really 100 flat but rather they are low sloped roofs that appear flat but have a little. Continuing on from part 3.

Top 15 roof types plus their pros cons read before you build. Also known as pitched or peaked. Top 20 roof types and pros cons roof styles design architecture flat. Roof design wind pressures are determined using the wind speeds at the mean roof height of the building i e average of the eave and ridge heights.

Roof type chart 1. The image below shows a cross section of our simple 12 x 13 house from the joist span tables section of this tutorial. Let s consider a basic gable wood roof framing design. Measure form the top of this line down the board to determine the line length or length of the rafter less the ridge.

The butterfly roof is an. 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. The bonnet roof is identified with the extending ledge around the base of the roof. There is no great architectural splendour in these roofs.

Flat roof designs are quite common in residential buildings. The a frame is very easy to identify. The other part of the. Add the length of the overhang beyond this mark and.

You can go for an extended roof that covers a few feet outside the external walls of the house.