Source google image: https://www.maisonbrico.com/images/conseils/isolation-des-combles-par-l-exterieur-en-renovation-3512-6130-l480-h480-c.jpeg
Toiture isolation
Source google image: https://www.maisonbrico.com/images/conseils/isolation-des-combles-par-l-exterieur-en-renovation-3512-6130-l480-h480-c.jpeg