Roof Framing 101 Pdf

Roof framing is one of those carpenter skills that appears quite complicated and indeed some roof designs are difficult.

Roof framing 101 pdf.

Roofs are basically five types. This reference guide will provide a basic knowledge of. The code also allows you to apply a slope reduc tion factor to account for snow blowing or. 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.

4 12 through 9 12 are the most common pitches. Figure 2 2 roof framing terms. But by the time his house was framed mine was shingled wired and plumbed. Shed or lean to roof gambrel roof mansard roof.

Professional tradesmen use rafter and framing squares to save time on roof construction projects. Line length is the hyptenuse of the triangle whose. I wish i was taught this at college years ago. Vertical rise over horizontal run.

Definite value for the money. Ive had a construction master pro as an app for some time but this dvd unlocks its full power. In the u s it is defined by the rise in inches to a 12 run. Shed gable hip gambrel and mansard.

Studs plates headers rafters girders flooring and joists are all terms used to identify different components in framing. Framing is the process of connecting building materials together to create a structure. When you fi nd it in the text write down the defi nition. All of the necessary cuts for a particular rafter can be laid out with these two squares.

Framing is a construction system. I just received and watched roof framing 101 volume 1 0. It was no coincidence that the other contractor ran out of money and had to. Roof framing is the last major framing activity in the construction of a house.

This is known as prescriptive. 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. 3 inch rise per 12 run is a 3 12 pitch roof. 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.

Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. 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.