Slanting Roofs: Do not collect snow and rainwater

Slanting roofs are a common architectural feature used in many buildings. They have several advantages, including their ability to shed water quickly and efficiently. The correct answer, option 'A', states that slanting roofs do not collect snow and rainwater. Let's explore why this is the case:

Explanation:

1. Design and Angle:
- Slanting roofs are designed with a specific angle to allow water to flow off easily instead of collecting on the roof's surface.
- The angle of the slanting roof is usually steeper than a flat roof, which prevents water and snow from accumulating.
- This design feature helps to prevent the weight of accumulated snow or excessive water from causing damage to the roof structure.

2. Gravity:
- The slant of the roof, combined with the force of gravity, ensures that any rainwater or snow that falls on the roof quickly runs off and does not collect.
- Gravity pulls the water downwards along the slope, preventing it from pooling or stagnating on the roof.

3. Roofing Materials:
- The materials used for slanting roofs, such as metal sheets, shingles, or tiles, are generally designed to be water-resistant.
- These materials have smooth surfaces and are installed in a way that promotes water runoff.
- They are not porous, allowing rainwater to flow freely without getting absorbed into the roof.

4. Gutters and Drainage Systems:
- Slanting roofs are often equipped with gutters and drainage systems that further facilitate the efficient flow of water away from the roof.
- Gutters collect the rainwater that runs off the roof and direct it away from the foundation of the building.
- This prevents water from pooling near the house, which can lead to water damage or flooding.

Conclusion:
In summary, slanting roofs are designed to prevent the collection of snow and rainwater. The angle of the roof, combined with gravity, allows water to flow off quickly. The roofing materials used are water-resistant and promote water runoff. Additional features like gutters and drainage systems also help in directing water away from the building. Overall, slanting roofs are an effective solution for preventing the accumulation of snow and rainwater.