Roof Framing 101 Pdf

This is known as prescriptive.

Roof framing 101 pdf.

It was no coincidence that the other contractor ran out of money and had to. Shed gable hip gambrel and mansard. I wish i was taught this at college years ago. When you fi nd it in the text write down the defi nition.

If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. Introduction to prescriptive roof framing 3 prescriptive roof construction the international residential code irc and the international building code ibc set out specific guidelines within which conventional light frame wood structures may be built without the need for engineering analysis of each component. This reference guide will provide a basic knowledge of. Roof framing is the last major framing activity in the construction of a house.

Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. But by the time his house was framed mine was shingled wired and plumbed. Floor framing on top wall framing in middle roof framing on bottom t was a coincidence that another con tractor and i began framing houses next door to one another on the same day. I just received and watched roof framing 101 volume 1 0.

Framing is the process of connecting building materials together to create a structure. 3 inch rise per 12 run is a 3 12 pitch roof. Framing is a construction system. Vertical rise over horizontal run.

In the u s it is defined by the rise in inches to a 12 run. Studs plates headers rafters girders flooring and joists are all terms used to identify different components in framing. 4 12 through 9 12 are the most common pitches. Construction how to roofing march 27 2008 sonia eht explores some basic roof framing techniques from layout to installation.

Shed or lean to roof gambrel roof mansard roof. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Chapter 17 reading guide 465. The code also allows you to apply a slope reduc tion factor to account for snow blowing or.

Figure 2 2 roof framing terms. Framing errors 10 91 installing plywood sheathing toe nails are stronger when adding up the weight of snow of a sloping roof use the horizontal run of the roof since the same amount of snow would accumulate on a perfectly flat roof. Professional tradesmen use rafter and framing squares to save time on roof construction projects. Roofs are basically five types.

Definite value for the money. All of the necessary cuts for a particular rafter can be laid out with these two squares. Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.