Mansard Roof Insulation

Here the insulation is very close to the roofing material and the task is not.

Mansard roof insulation.

If the attic space remains uninhabited the air in the under roof space serves as a good thermal insulation along with the insulation of the floor. I have a house with mansard roof in boston. One of the best ways to protect your mansard roof from the problems of ventilation is to use a vapor barrier on the inside. This barrier may not be fitted to an older home and you should consider getting a contractor.

Mansard and gambrel style roofs have always been hard to insulate. After having dense pack installed in the building walls the mansard is the next target. Step 1 add a vapor barrier. The steep roof with windows creates an additional floor of habitable space a garret and reduces the overall height of the roof for a given number of.

But what materials should be used to save energy on this type of house. Originally i was toying with the idea of closed cell spray foam for the whole mansard floor but i do not want to tear down historic plaster. One strategy would be to incorporate the attic into the conditioned space and then use a sandwich of barriers and insulation under a furred vented. The illustration to the right shows the proper insulation of this style of roof.

So now i m thinking about just insulating the little attic which is formed by the low sloped part of the. To insulate the roof you will need to use a combination of insulation to fully protect the roof.