Making An Interior Room Habitable Space - Building & Construction - Page 2 - DIY Chatroom Home Improvement Forum

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Old 01-28-2010, 07:05 AM   #16
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A bedroom requires direct egress, other rooms do not
Most houses are built so that a window or door of a room will border an outside wall
Basement usually a bit more restricted if below ground


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Old 01-15-2011, 10:11 AM   #17
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The reason the building inspector is not answering your question (and why you are not getting great answers here) is that you are not defining what the intended use is.

You said you can't afford a window, but did not directly say you do not intend to sleep in it. If you intend to sleep in it, it is a bedroom. It requires 2 means of egress to the outside (1 may be a window of suitable size), and may not egress through the garage (plus other requirements, such as smoke detectors). If you fail to provide this, you are putting the occupants in danger, and constructing the space illegally.

If you do not intend to sleep in it, the next question is if it is habitable. If the purpose is for storage, etc. it is not a habitable space, and is exempt from the building code requirements for habitable spaces. Note, that you will also exclude this space in the calculations of heated house size for appraisal purposes.

If it is habitable (recreation space, etc), it is required to meet the ventilation requirements. Mechanical ventilation is acceptable, and the house's standard air conditioning system may suffice (if designed to do so). The code does not require windows in every room.

Hope you find this helpful.
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Old 01-15-2011, 10:23 AM   #18
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Originally Posted by HooKooDooKu View Post
No, because in this case, the purpose for the ventilation is in the other direction. The idea is each room needs a possible source of outside air. But the purpose of a fart-fan is to move the inside air to the outside.

But the issue with even installing something like a fart-fan (in reverse) is that I would need to punch a hole in a cinderblock AND Brick wall... or run a really long pipe to another basement wall that doesn't have the brick.
That's not exactly correct.

If a mechanical ventilation system vents air out of a room, it also draws air into a room, unless it develops negative pressure.


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