Wood Handbook, Wood as an Engineering Material

stiffness to the roof and transmits a portion of the lateral loading to the walls parallel to the direction of the load. De- tai ...

Local fire regulations should be consulted about the accep- tance of various foam insulations. Framing members are cut in large ...

Arch Structure Arch structures are particularly suited to applications in which large, unobstructed areas are needed, such as ch ...

Sawn Lumber Several types of bridges can be built with sawn lumber. Even though the span is usually limited to about 9 m (30 ft) ...

the relative performance of these products and conventional fibrous insulations. Existing frame construction can be insulated pn ...

Paint Failure and Other Appearance Problems Moisture trapped behind paint films may cause failure of the paint (Chap. 16). Water ...

leaving the opposite side of the structural surface. Sound transmission class (STC) is the rating used to characterize airborne ...

ICC. 2007. Standard on the design and construction of log structures. ICC400-2007. Washington, DC: International Code Council. L ...

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CHAPTER 18 Fire Safety of Wood Construction Robert H. White, Research Forest Products Technologist Mark A. Dietenberger, Researc ...

General Technical Report FPL–GTR– 190 provisions of the codes when equivalent fire protection and structural integrity are docum ...

Chapter 18 Fire Safety of Wood Construction wood ignition. To address this concern, a safe margin of fire safety from ignition e ...

General Technical Report FPL–GTR– 190 prescribes a formula to convert these data to a flame spread index (FSI), which is a measu ...

Chapter 18 Fire Safety of Wood Construction are for Class C. Some high-density imported hardwood spe- cies have FSIs in Class B. ...

Smoke and Toxic Gases One of the most important problems associated with evacu- ation during a fire is the smoke produced. The t ...

factor in providing a degree of fire resistance. In Type IV or heavy timber construction, the need for fire resistance re- quire ...

load (NDS dated 2005) calculated using a le/d of 33. Less than full design load in the fire test imposes a load restric- tion on ...

increases, the degree of polymerization of cellulose de- creases further, free radicals appear and carbonyl, carboxyl, and hydro ...

glow to exist prior to flaming ignition if the imposed radia- tive or convective heating causes the wood surface to reach 200 °C ...

Some, typically old, apparatuses for testing piloted ignition measured the temperature of the air flow rather than the imposed h ...