#Costs of green roofs how to

However you will need to check the drainage system is clear from debris a couple of times a year to prevent serious leakage issues. Checkout our overview of the best plants for a green roof to see why plants make such a huge difference to maintenance. Their shallow, lighter growing medium makes getting to the roof itself much simpler and the lighter weight doesn’t have the same potential to warrant structural inspection as frequently.Īnd the low-growing, stress tolerant grasses and succulents associated with extensive roofs are much hardier than their intensive counterparts. And herein lies a significant difference in both care and cost.Įxtensive roofs are the much cheaper, lower maintenance option. So installing something that improves a building’s temperature regulation is an seasonal energy-efficient winner. 10% of the UK’s total energy expenditure was spent on cooling buildings – primarily offices – in 2017. Completely counter-intuitively – to us at any rate. And we like to think of a green roof as an eco-friendly roof replacement. One that increases your roof’s longevity and reduces your energy bills.Īnd in the UK more energy is spent artificially cooling buildings in the summer than heating them in the winter. So whilst green roof installation is expensive, so is the cost of replacing a roof. By increasing the structural integrity of the roof and protecting the membrane from corrosive UV rays (and extreme temperature fluctuations), studies have revealed that the lifetime of roofing membrane can by lengthened by 40 – 50 years. And the green variety should extend the lifetime of your roof by 200 – 300%. This is a cheaper, more lightweight form of roof with lower, but more complicated, maintenance costs.

You’d have to remove the roof to access the roof underneath. Rollout roofs are lightweight and cheaper than modular to initially install, but it’s harder to carry out long-term maintenance. This form of green roof works best in hard-to-reach places and is more expensive. They can form a seamless green roof with great drainage. Modular roofs fit together like a giant jigsaw, where all the pieces fit seamlessly together.

Type of roof: In this case we’re talking about modular vs rollout green roofs.

The more complex the construction and project accessibility, the more expensive it will become.

Accessibility: Green roofs need to be installed on roofs pitched at no more than 30°.

So the type of roof makes a difference material wise.

Materials: Extensive green roofs use cheaper materials than intensive green roofs.

Design: If you aren’t undertaking a DIY project, you will absolutely need architectural and aesthetic expertise.

There are multiple things to consider when discussing living roof installation:

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#Costs of green roofs how to

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