Roof And Ceiling Construction

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process.

Roof and ceiling construction.

Roof is the uppermost part of a building. In regular light frame construction and conventional roof framing the ceiling is constructed using an arrangement of timber joists and beams that run across the length and width of the ceiling. R802 1 1 irc r802 1 identification load bearing dimension lumber for rafters trusses and ceiling joists shall be identified by a grade mark of a lumber grading or inspection agency that has been approved by an. Such roofs are built with mostly timber take a number of different shapes and are covered with a variety of materials.

All dwellings need a roof to be safe from the heat cold and rain. What are ceiling joists and beams. Applications aesthetics advantages and disadvantages of these types of ceilings are discussed. Finally traditional fiberglass insulation works well in cathedral ceilings although a 2 inch breathing space between the insulation and the roof sheathing must be included.

Various types of ceiling are used in building construction. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. In this post we will cover wood roof framing members specifically ceiling joists. Other materials such as metal and concrete may also be involved in making a ceiling.

In areas where expansive or collapsible soils are known to exist. It is the roof that provides protection to the inside of the building from the weather and the elements. Roof and ceiling construction shall be capable of accommodating all loads imposed in accordance with section r301 and of transmitting the resulting loads to the supporting structural elements. These are secondary ceilings suspended from the structure above typically a floor or roof slab creating a void between the underside of the slab and the top of the suspended ceiling.

If you decide to construct a vaulted ceiling check with your local office regarding building permits and consult with an experienced structural engineer to ensure safety. The design and construction of ceiling joists are found in section r802 4 of the irc. The allowable ceiling joist span tables in the 2018 version are found in section r802 5. Roof and ceiling framing of wood construction shall be designed and constructed in accordance with the provisions of this section.