Insulating finishing an attic crawl space with a partial kneewall.
Finishing attic space ceiling.
It needs a certain amount of loft to work properly.
Those are classic spots to have leakage through the ceiling.
I ve got a story and half bungalow with a good size attic space that includes a knee wall against a bedroom and beyond that a shorter roof.
The basic space requirements for a finished attic boil down to the sizes of the finished rooms.
Every attic is different but a few established norms and practices will guide your renovation.
If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts.
Enforcement varies but codes typically say that at least half of a finished attic must be at least 7 feet high and that this area must be a minimum of 7 feet wide and 70 square feet.
If building a knee wall for storage like karl did with this project make sure to insulate that area as well.
Looks like you have good.
Need more headroom in the basement.
The attic floor which is the ceiling of the living space below often already is insulated.
Flooring ceiling and wall materials and other elements will reduce headroom and floor space and it s the finished area that matters.
Finishing the attic into liveable space nets an average of 9 3 out of 10 joy score or sense of happiness the owners have upon completion on nar s renovation report.
For a finished attic to be to code it must satisfy the same living requirements of other rooms sometimes called the rule of sevens any living space in a home needs to have at least 7 feet 2 1 m of clearance from the floor to the ceiling and there needs to be at least 70 square feet of space available at least 7 feet 2 1 m in each direction.
Use r 30 insulation for the ceiling and r 13 for the walls.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
So if you re planning to get a few years of use out of it the investment might make more sense.
A contractor or a local building official can help you assess how the rule will apply to your attic and how modifications like dormers can resolve height shortcomings.
Thedjm posted in general questions.
Depending on the size of the space and quality of finish you are looking for your cost to finish drywall and paint the walls will be 900 2 800.
If you don t have enough height you ll have to raise the roof line and that adds a lot to your construction costs.
Don t mash or compress the insulation into the space.
That s measured after you finish the ceiling.
This includes putting in drywall painting the walls and ceiling installing trim and moldings as well as other finishing touches.
Building codes vary by location but most require at least a 7 foot clearance for attic expansions.
Staple insulation between the wall studs and ceiling joists image a.
Step 1 check the ceiling height.
One of the final steps is to finish the walls and ceiling.
At least 50 step 2 make sure the attic has a full size staircase.
If it is and you plan to provide heating and cooling to the finished attic space you need to remove.
