Building Technology 2: Types of Roofs

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Questions and Answers

What is the primary purpose of a Saw Tooth Roof design?

  • To create a unique architectural aesthetic
  • To reduce wind resistance
  • To provide additional structural support
  • To maximize natural light through vertical windows (correct)

What is the characteristic feature of a Mansard Roof?

  • A hemispherical form of roof
  • A flat deck on top with steeply sloping sides
  • Four straight sides sloping towards the center of the building
  • Two sides of the roof slope steeply from each side of the building towards the center (correct)

What is the primary difference between a Gambrel Roof and a Gable Roof?

  • Gambrel Roofs have a flat deck on top, while Gable Roofs do not
  • Gambrel Roofs have steeply sloping sides, while Gable Roofs have gently sloping sides
  • Gambrel Roofs have two slopes on each side, while Gable Roofs have one (correct)
  • Gambrel Roofs have four straight sides, while Gable Roofs have two

What is the characteristic shape of a Hip Roof?

<p>A roof with four straight sides all sloping towards the center of the building (A)</p> Signup and view all the answers

What is the primary difference between a Hip Roof and a Hip and Valley Roof?

<p>Hip and Valley Roofs have a combination of a hip roof and an intersecting gable roof (C)</p> Signup and view all the answers

What is the characteristic feature of a Pyramid Roof?

<p>A pyramid form having steep sides sloping to the center (B)</p> Signup and view all the answers

What is the minimum distance required for corrugated GI sheets to extend beyond the outer face of the fascia board?

<p>8 cm (B)</p> Signup and view all the answers

What type of roofing fastening method uses plain GI straps, GI rivets, and GI washers?

<p>Riveting (C)</p> Signup and view all the answers

What is the primary purpose of providing a string along the gutter line during roofing installation?

<p>To ensure proper alignment of corrugations (B)</p> Signup and view all the answers

What type of roof is characterized by a single slope and is considered the simplest form of roof?

<p>Shed or Lean-to Roof (A)</p> Signup and view all the answers

What is the recommended spacing for nails or rivets along the gutter line, end lapping joints, ridge, hip, and valley rolls?

<p>Every other corrugation (D)</p> Signup and view all the answers

What type of roofing fastening method uses roof nails and a pair of GI washer?

<p>Nailing (A)</p> Signup and view all the answers

What type of roof is characterized by two sheds meeting at the center of the building?

<p>Butterfly Roof (B)</p> Signup and view all the answers

What is the primary function of a ceiling strap or hanger?

<p>To suspend or fasten the ceiling (C)</p> Signup and view all the answers

What is the term for the ornamental molding running around the walls of the room just below the ceiling?

<p>Cornice (C)</p> Signup and view all the answers

What is the size of a typical wooden ceiling joist?

<p>2&quot; x 2&quot; (B)</p> Signup and view all the answers

What type of ceiling is characterized by a concave or canted interior corner or molding?

<p>Cove Ceiling (D)</p> Signup and view all the answers

What is the size of a typical plywood ceiling?

<p>1/4&quot; x 4' x 8&quot; (B)</p> Signup and view all the answers

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