Sloped roof renovation: guide to works and roof insulation

Why renovate your sloping roof?

Several reasons may motivate a roof renovation:

• Leaks and water infiltration: the appearance of moisture stains on your ceilings is an alarming sign that should not be ignored.
• Broken or displaced tiles: wind, hail and frost can damage tiles, weakening your roof.
• Insufficient insulation: a poorly insulated roof leads to significant heat losses and increases your energy bill.
• Aesthetic improvement: a new roof can enhance your home and increase its value.

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Key steps of a sloping roof renovation

1. Inspection and diagnosis: a professional roofer will inspect your roof to assess its condition and identify the necessary work.

2. Choice of materials: terracotta tiles, concrete tiles, slates, steel sheets... The choice depends on the architecture of your home and the budget.

3. Removing the old roof: consists of removing the old tiles while respecting safety standards.

4. Repair or replacement of the framework: if the framework is damaged, it will need to be repaired or replaced.

5. Laying insulation: good thermal insulation is essential for comfort and energy savings.

6. Laying waterproofing: protects your roof against water infiltration.

7. Laying the new roofing: tiles or other roofing materials are laid with care.

8. Finishing: installation of ridge tiles, edges and roofing accessories.

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Which materials to choose for your sloping roof?

• Terracotta tiles: traditional material, aesthetic and durable.
• Concrete tiles: more economical than terracotta tiles, they offer good resistance.
• Slates: noble and elegant material, but more expensive.
• Steel sheets: economical and quick to install solution.
• Corrugated sheets: often used for annexes and agricultural buildings.

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How to ensure the insulation of a sloping roof and protection against the elements?

Insulating a sloping roof remains crucial for your thermal comfort. Several solutions exist:

• Internal insulation: lay insulation panels between the rafters or under the roof.
• External insulation: more efficient, it allows thermal bridges to be eliminated.
• Blown-in insulation: suitable for lost attics, it consists of blowing insulating material into the empty spaces.

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How to renovate roof windows?

Roof windows contribute to heat losses. During a roof renovation, it is wise to replace them with more efficient models in terms of insulation.

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Roof renovation costs in Switzerland

The cost of a renovation varies according to several factors:

• Roof surface area: the larger the surface area, the higher the cost.
• Materials chosen: terracotta tiles are more expensive.
• Complexity of the work: a complex roof will cost more to renovate.

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Regulations and authorisations

Regulations concerning renovation vary. It is important to check with local authorities to find out the necessary authorisations.

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Financial aid for roof renovation

Subsidies are available for energy renovation work, particularly for roof insulation.

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EDIREX: your partner for any roof renovation project

EDIREX supports you in your roof renovation project by allowing you to find qualified roofers, compare free quotes and benefit from personalised advice.

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Tips for choosing your roofer

• Request several quotes: compare prices and services.
• Check insurance: make sure the roofer has the necessary insurance.
• Check their experience: ask for references and consult customer reviews.
• Prefer a local roofer: this facilitates communication and monitoring of the work.