IELTS Writing: Green Roofs and Urban Heat
Green roofs and urban heat
Answers and an explanation for each question appear once you add this activity to your own library.
How to Use This Lesson
• Allocate 55 minutes total for this 3-module unit, starting with Module 1 to establish core vocabulary and target structures.
• Check students' progress on word forms and verb patterns before they proceed to independent writing in Module 2.
• Complete Module 1 first to master unit vocabulary, useful essay phrases, and essential verb patterns.
• Read the explanations carefully after answering to ensure you can apply these structures in your essay.
Build Your Skills First
Master unit vocabulary, collocations, essay transitions, and the target grammar structure before starting your essay.
Word Forms
Complete each sentence with the correct form of the word in brackets.
1. Rooftop plants act as effective thermal insulate, keeping top-floor rooms cooler.
2. Natural cooling occurs when water loss takes place through evaporate from leaves.
3. Without shade from vegetation, uninsulated concrete structures suffer from severe overheat during heatwaves.
4. During peak summer months, dark paved streets sweltering under direct sunlight.
5. Introducing proper roof ventilation and greenery helps eliminate indoor stuffy in apartments.
Collocations
Choose the correct unit word that naturally pairs with the surrounding words.
6. During ________ summers, urban areas become significantly hotter than nearby rural districts.
7. Uncovered ________ roads absorb solar radiation and release trapped thermal energy slowly at night.
8. Heavy rainwater cannot drain properly if the rooftop ________ is blocked with dry leaves.
9. Top-floor rooms with small windows often feel ________ and airless in mid-summer.
10. A thick layer of green ________ helps retain moisture and protect rooftop soil from drying out.
Common Essay Phrases
Select the correct phrase from the bank to complete each essay context (use each phrase once).
11. ________, city authorities ought to mandate plant coverage on all newly constructed commercial buildings.
Function: Giving your opinion
12. Dark concrete roofs absorb immense amounts of solar radiation during the daytime. ________, downtown temperatures rise significantly.
Function: Showing a consequence or result
13. Rooftop gardens offer undeniable environmental benefits. ________, the initial setup expenses can be substantial for property owners.
Function: Introducing a contrasting point
14. Plants lower indoor cooling demands effectively. ________, they absorb rainwater, reducing pressure on drainage systems.
Function: Adding an additional supporting argument
15. Green roofs can be used in many ways. ________, owners can grow herbs, flowers or small trees on them.
Function: Presenting a specific example
Paraphrase Practice
Select the option that best rewrites the original sentence using different words or structure without changing the meaning.
"Covering roofs with plants prevents buildings from overheating."
"Asphalt roads absorb large amounts of heat during hot weather."
"Many urban residents consider rooftop gardens relaxing."
Grammar Focus & Quick Practice
Review the pattern below, then choose the verb that fits each context.
Target Structure: Verb + Object + Adjective
Use make, keep, leave, find, and consider followed directly by an object and an adjective. Do NOT insert to be or that.
1. State Change (make)
• Hot summers make cities uncomfortable.
2. State Maintenance (keep)
• Green roofs keep buildings cool.
3. Unchanged / Neglected State (leave)
• Do not leave the soil dry.
4. Opinion / Perception (find / consider)
• Residents find the garden relaxing.
⚠️ Key Rule: Write "It keeps rooms cool" (NOT "It keeps rooms to be cool").
19. Rooftop vegetation helps to ________ building interiors cool throughout sweltering summer heatwaves.
Context: Holding/maintaining a state of coolness
20. Unshaded asphalt streets can ________ living in dense urban centers uncomfortable during July.
Context: Changing a state (causing discomfort)
21. Many urban planners ________ green roof requirements necessary for modern sustainable development.
Context: Expressing an opinion or judgment
Write Your Essay
Apply the vocabulary, transition phrases, and grammar structures you practiced in Module 1 to construct your complete IELTS Writing Task 2 response.
"Some cities now require the owners of new buildings to cover part of the roof with plants. Do the advantages of this outweigh the disadvantages?"
🎯 Task Requirements
- • Write at least 250 words.
- • Use at least 3 sentences with the target grammar pattern (make, keep, leave, find, consider + object + adjective).
- • Include at least 5 Unit vocabulary words (rooftop, moss, greenery, gutter, insulate, evaporate, overheat, asphalt, sweltering, stuffy).
4-Paragraph Essay Plan
Use these exact paragraph openers to structure your essay clearly:
"In this essay I will discuss ..."
"One advantage is ..."
"However, one disadvantage is ..."
"In conclusion, ..."
Self-Check Checklist
Check each item off before submitting your essay:
Write Your Essay Response
Type your complete essay below. Write at least 250 words.
🌟 Module 3 • Model Essay
Read the model essay below. The bold parts show the pattern from this lesson, and the note under each one says why it works.
In this essay I will discuss whether the advantages of asking owners of new buildings to cover part of the roof with plants outweigh the disadvantages. In my view they do, although the idea is not perfect. I will look at the benefits first and then at the problems.
One advantage is that greenery keeps the top floor cool in the summer.Pattern: keep + object + adjective. Write cool, not to be cool. On a sweltering day a bare rooftop can overheat, but a layer of plants and moss helps to insulate the rooms below it, so people use less air conditioning. Water in the soil can also evaporate, which makes the air around the building fresher.Pattern: make + object + adjective. The adjective comes straight after the object. Many people also find a rooftop garden relaxing, because it gives them a quiet place to sit during the day.Pattern: find + object + adjective. It gives a personal opinion.
However, one disadvantage is that a green roof costs more than a normal roof. The owner has to pay for the soil, the plants and the workers, and the roof needs regular care. The plants also need water in a dry summer, and that costs money too. If nobody cleans the gutter, leaves can block it and the water stays on the roof. Some owners may consider these costs unfair, especially owners of small buildings.Pattern: consider + object + adjective. It sounds a little more formal than find. Bad care can leave the soil dry, and then the plants die.Pattern: leave + object + adjective. Nobody changes the state, so it stays dry.
In conclusion, I believe the advantages are stronger than the disadvantages. A roof with plants is much nicer than a hot asphalt roof, and it makes the city less stuffy in summer.Pattern: make + object + adjective. Here less goes in front of the adjective. The cost is a real problem, but I think the rule is worth it if owners get some help.
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