Регулация

We consider 2 cases, building a new roof and renovating an existing one. Let’s see the main points of both situations.

New roof

For a new building, several performances are required for a new roof:  

• Weather resistance (waterproofing, resistance to wind, adequate drainage...)  
• Load resistance, like snow load
• Insulation (resistance to heat loss) that will also provide an enhanced well-being fo you in the building
• Specific fire resistance depending on the area of your project 
• Ventilation to be protected from condensation (for larger roofs). 

Existing roof

For an existing building, you may need approval if:

• you want to repair or reroof more than 25% of the roof area
• works may cause structural alterations and cracks in the structure
• the new roof has different performance, like lower fire resistance. 

Contact us or call your roofer to get more details.