Structure Inspection Section#3 Wall System Quiz#6

You should have finished Study Session 5 and Quick Quiz 5 before starting this Study Session.

The estimated completion time is 45 minutes.

Objectives
At the end of this study session, you should be able to:

• Explain in one sentence the functions of arches and lintels.
• List five materials used in arches and lintels.
• List nine common lintel problems.

Briefly describe the functions of arches and lintels. (Hint: use the words "loads", "transfer", and "openings" in your discussion.)

Arches and lintels transfer dead and live loads above and around openings.

List nine common arch and lintel problems.

1. Missing

2. Cracks

3. Mortar deteriorating or missing

4. Wood supporting masonry

5. Stone or brick deterioration

6. Sagging, leaning or rotating

7. Endbearing

8. Rust

9. Rot/insect damage

What materials are used for arches?

Materials used for arches are often the same materials used for walls and may be stone, brick, or concrete.

End bearing for lintels in masonry should be at least __ inches. (Insert a number.)

6

End bearing for lintels in wood frame walls should be at least __ inches. (Insert a number.)

1-1/2 

Wood lintels on the exterior face of a building are particularly prone to _____ problems.

Rot

Masonry resting on wood is a less than ideal arrangement.

True

The top of the exposed edge of a steel lintel should be caulked.

False

With masonry walls, the lintel size is independent of the number of stories above.

True

With wood frame walls, the lintel size is independent of the number of stories above.

False