Insulating A Roof From The Outside

Insulating a sloping roof.

Insulating a roof from the outside.

Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level. Does anyone have any experience with this or know of a source for used insulated metal roof panels. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic. As its name suggests external insulation is placed outside the house.

If anyone has a better idea or sees a problem with my idea i m all ears. Just make sure there is no rot in the roof deck before closing that all in with nice warm insulation. With interior insulation the entire space between the rafters is filled with insulating material and then covered with a plasterboard or wood panel finish that is then painted or wallpapered. With this kind of roof the insulation follows the slope of the roof.

How to insulate house walls from the outside. It must be remembered that just because a roof space is insulated and the floor boarded it does not mean that the room can be considered a habitable room for a full. However most cathedral ceilings and low slope flat roofs are insulated roof assemblies. Remove existing roofing and non adhered underlayment to expose roof sheathing.

This house is located in florida. I m thinking insulated roof panels probably 4 with new metal over. It s worth insulating the sloping insides of a pitched roof in order to conserve heat if the space is to be used for anything except simple storage. The foam insulation can be put directly over the shingles or the shingles removed if there is a weight consideration.

Insulated roof assemblies can be vented or unvented. A roof over a vented unconditioned attic does not need to include any insulation. I will need to insulate from the outside. To make installation of the foam easiest screw a board over the very bottom of the existing roof edge.