My ham radio room within the detached garage is dust proof but it is not insulated.
The dust proof part was fairly easy. There are no windows to “leak dust into the room, I “taped and mudded” the wallboard seams, and I I caulked the edges of the wallboard at the floor. After a month, a dust cloth picks up very little dust…probably just what I bring into the room on my clothes and shoes.
I am finally getting around to adding the insulation to the room. Without insulation, the room was uncomfortably cold in the winter, often below 0C, and uncomfortably warm in the summer, often over 40C. I do have an electric heater in the room, but it is not “strong” enough to warm the room to more than 4C-5C degrees above the outside temperature.
There are (obviously) four walls and one overhead space that I need to insulate. Three walls will accommodate R13 insulation and one wall can accommodate R19 insulation. The overhead can accommodate R38 insulation.
I need seven rolls of R13 insulation, four rolls of R19 insulation and four packages of R38 insulation batts. Unfortunately, the store only had three R13 rolls in stock. I bought what they had, ordered the rest, and spent an hour installing the insulation that I could bring home.
Even with what I have completed so far, the heater can now bring the room temperature about 10C degrees above the outside temperature.
One the insulation is complete, I will need to figure out how to cool the room in the summertime. My calculations indicate around 18,000BTU of cooling capacity will be needed to adequately cool the room. This includes the extra (approximately) cooling capacity needed to remove the heat generated by the older “vintage” tube type ham radio gear in the room.
