Attic Framing Types

How to frame an attic space.

Attic framing types.

In this picture a broken rafter is visible due to no attic bracing. Installing attic flooring for light storage only. Home was built in the 1950 s in summerville sc. Attics can be dark and forbidding spaces but they don t have to be.

Gambrel and mansard roofs offer more head height for attic rooms. And the line length measurement from the roof peak to the building wall is the hypotenuse. Collar ties rafter ties tension beams structural ridge beams. Most homes are insulated in the attic and any floors located above unfinished basements or crawl spaces.

Top 15 roof types plus their pros cons read before you build. Western balloon and braced. The run or half the building span is the base of the triangle. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.

Here is a section of the attic with no collar ties or attic bracing. Overhangs hips and dormers add greatly to the complexity of the framing. At the time this home was built in the 50 s the type of attic bracing that was installed was at the discretion of the builders. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Some of these can support the roof and prevent ridge sagging and wall spreading. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. A properly framed attic room can eliminate most of the odd angles and awkward spaces of an. 05 05 2019 big al roof architecture roof design roof types when building a new house or retrofitting an existing one choosing the right type of roof can be more difficult than most people realize.

Roof framing can be simple or complex depending on the roof. Figure 6 1 page 6 2 illustrates these types of framing and specifies the nomenclature and location of the various members. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. The rise or height of the roof at its peak is the altitude of the triangle.

The most effective places to add insulation to older homes are exterior walls attics basements and crawl spaces. Light framing is used in barracks bathhouses and administration buildings. Stick truss roof framing. Light framing there are three principal types of framing for light structures.