How To Insulate An Attic Bonus Room

Three options compared spray foaming the exterior walls.

How to insulate an attic bonus room.

Use traditional blown in insulation and wrap the exterior of the walls with foil backed foam board. Turning an uninsulated space over the garage into a comfortable office. Otherwise providing adequate thicknesses of floor wall and ceiling insulation and limiting glass in the bonus room is the best way to conserve energy. Install traditional fiberglass batts.

The result is a comfortable room that s truly a bonus. A better way to assure a warm and cool bonus room is to condition the garage space below by heating it or cooling it as needed. There are as many ways to do it as there are people who do it. In any case be sure to provide adequate ventilation in any enclosed attic spaces.

It s quite likely that there is not enough framing space to achieve this with fiberglass batts alone. Spray foam offers the highest level of energy efficiency but can be. Sue36 14 years ago. Do you notice ice dams on the roof above the bedroom over the garage in the.

These would include the area above the cross tie and the spaces outside of the knee walls. We put about 10 inches of insulation on all sides of the duct including below it for a good r 30 to r 40. Insulating the roof of a bonus room a homeowner faces a familiar problem. When finishing a room above is garage it s important to get the insulation details right.

By scott gibson december 2 2013. When we come to a home to insulate the bonus room we find that there is nothing in the walls. At a bare minimum you re probably going to need r 19 wall and r 40 roof if not more. You ll need to consider either or both more efficient insulation and some soffiting to get enough room for proper insulation.

Bonus room floors can also be cold. Often attic bonus rooms such as my own are above unheated garage or storage space. One of the best methods is rigid foam board with sealed joints over insulation in the knee wall. By utilizing spray foam directly to the underside of the floor sheathing cold floors can be minimized.

How to insulate a bonus room. This is not very easy in most of the older houses we work on because the hatches and attics are too small to get rigid foam board through. To make your bonus room habitable replace old insulation if needed and add an additional layer of rigid foam insulation.