To avoid these ads, REGISTER NOW!

Bump Out Shed Insulation

bray101

Member
Joined
Oct 30, 2018
Messages
5
Location
Ohio
Hey all...Finally getting around to finishing the interior of my new building that was constructed over the last winter and am running into a question I don’t know the answer to, nor can I find a situation just like mine in any forum or website that I see as possible.

Decided to have a 4 x 8 bump out shed put on one side of my garage to allow for mower, gas, etc. storage. It has its own separate entry door and has no entry from the main garage structure interior. The roof is a typical lean-to style I would say...and my issue arises here.

I am almost finished insulating the garage and wanted to add insulation to this shed as well. My issue is the roof has no ridge vent, as the roof meets the fable side of the garage. The soffit that has been installed is vented, and a small louver vent was added on one side as well. The roof is 2x6 construction, 24” o.c. Plywood, felt, shingle, etc.

Insulating the walls is not an issue, but the ceiling is my question. If I put batts in between the rafters, it will block the air coming in from the soffit, and likewise, there is no ridge vent or anything at that higher level to vent out even if I added an attic baffle of some sort. I have found some solutions online that involve cutting a slot in the existing roof and venting it that way, but I wasn’t sure if there was an insulation option that I could do as is without cutting into the new shingles roof.

Thanks in advance! I can get photos when I get back there this evening if it would help.
 
To avoid these ads, REGISTER NOW!

CombatNinja

Well-known member
Joined
Aug 24, 2013
Messages
1,456
The answer to your question seems obvious to me. If this 'bump out' is not part of the garage and is just a little lean-to on the side of the house and it is not climate controlled in any way, why would you want to insulate it? Insulation may well cause several problems while solving none. Never, ever insulate what you do not intend to climate control.
 

Tunar

Well-known member
Joined
Oct 7, 2017
Messages
115
Location
Woodstock VA
We use an insulated shed at work. It has a power bathroom vent in it that discharges through the gable end. Could that work for you in combination with the small louvered vent?
 
To avoid these ads, REGISTER NOW!
OP
B

bray101

Member
Joined
Oct 30, 2018
Messages
5
Location
Ohio
I did think of the powered vent route, along with any surface mount vent type. I just wasn’t sure how to do in insulation of the ceiling. Meaning: should I foam board on the bottom of the rafters leaving the 6” gap for soffit vent to vent towards the powered vent?

The louver vent I currently have installed is a good 8-10” below the ceiling line so it won’t be much help in terms of “attic” ventilation.

We use an insulated shed at work. It has a power bathroom vent in it that discharges through the gable end. Could that work for you in combination with the small louvered vent?
 

mike93lx

ALLIANCE MEMBER
Joined
Dec 9, 2013
Messages
37,487
Location
Richmond, VA
The answer to your question seems obvious to me. If this 'bump out' is not part of the garage and is just a little lean-to on the side of the house and it is not climate controlled in any way, why would you want to insulate it? Insulation may well cause several problems while solving none. Never, ever insulate what you do not intend to climate control.

This. There is no reason to insulate an unoccupied, unheated structure.
 
To avoid these ads, REGISTER NOW!
Top Bottom