1925 brick Bungalow attic project

123pugsy

Sorry about that. I thought the picture was a sample from somewhere and not your house.

If this is your house, the numbers are dead on and not looking good at all.

matulch

If I make the room a general purpose room the average height can drop to 7'

This is what the it would look like.
This option would add 350 sq feet to house I just can't call it a bedroom.



GBR - Not sure what measurements I made before, But I can frame up the window larger to make it up to code.

123pugsy

That's a decent sized space.

Gary in WA

Did you ask your AHJ? Usually the knee walls can be as short as needed, only the code lists minimum per room size.

Gary

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matulch

Talked with the local AHJ. He said I could drop the ave height down to 7' and still call it a bed room

He also said I need an R value of 38, so it looks like I need a thick 5.5" layer of spray foam for the room.

I think i will spray 2" on the roof portion that is not part of the room and 5.5" for the part that is part of the room.

matulch

Here is my insulation plan
use Demilec Heatlok Soy 200 7.4 R value at 1 inch
spray 5.5 in thick for room and 2 in thick for the rest of attic roof.
I am also thinking about adding fiberglass under the 2in foam section of attic.


Here is what the space is looking like.



What do you think?

Gary in WA

What did he say about venting the lower attics behind the knee walls?

Gary

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matulch

Gary ,

We did not talk about it. He told me to make sure to vent the bathroom If i do put one in.

The attic currently does not have any venting so I think keeping it that way with spray foam would be the easiest way.

matulch

Looking for a little advice on HVAC for the attic space. How do i know if current HVAC system can handle the extra space?

Should I look into a Ductless Mini Split?

Thanks,
Chris

Gary in WA

Start another thread in the HVAC forum, here; http://www.diychatroom.com/f17/

Gary

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