The task of insulating a garage roof is not hard to complete if you follow a few tips and hints.
Garage pitched roof insulation.
In most cases the attic is ventilated and the infiltration barrier is the drywall ceiling.
Poor ventilation which can lead to water vapour permeating the internal finishes and insulation is a cause of many garage problems.
If you have a flat garage roof and an attic above you can install the garage insulation from below using a standard ladder.
Sebring estimates it costs about 50 cents to 1 25 per square foot to insulate a garage.
He says this is the easiest diy choice.
The insulation may consist of 2 or 3 layers depending upon the type of insulated plasterboard.
Although there is a myriad of different roof types the most important aspect where insulation is concerned is flat or pitched.
One of my main considerations when insulating a garage roof is ventilation.
You can insulate the walls ceiling and door of the garage to the highest r value possible but if you fail to fill those air gaps you ll still be wasting a lot of heat.
In either case you will need to follow the general steps below to insulate your garage roof.
Roof ceiling insulation insulation in roof ceiling constructions must be placed in direct contact with the infiltration barrier.
This is part 1.
So before insulating go around the garage with a can of low expanding spray foam and seal all gaps and cracks that let in the daylight.
Like walls there is a minimum u value that must be met.
It s about time i had a better work environment.
A full guide on how to do this yourself can be found here.
Most garages have flat roofs and despite the name none of them are perfectly flat.
Sheet insulation fitted between the rafters the thicker the better but the size of rafter may limit the thickness possible once an allowance has been made for the required 50mm 2 inch air gap.
If your garage is attached to your house you will notice a big difference in your home s temperature as well.
In this case the insulation must lie directly on top of the ceiling.
My goal is to operate an electric heat source in the winter and have 60 f temperature maintained when working in the garage.
However if you have a cathedral style garage roof you will need a scaffolding to get into the upper areas of the roof.
Pitched roofs are fairly simple to insulate and involve the same process as insulating the loft in your main house.
They are in fact defined as any roof having less than 10 degrees of pitch and need some angle in order to funnel away rain water.
This means insulating a two car garage would cost about 338 845.
The regulating temperature has positive effects on your cooling and heating costs.
I have read a lot about proper insulation and ventilation including some posts on this site but none adequately answer my questions.