Hello everyone,

I have been trying to figure out if a fire-rated attic hatch is needed in the garage (the garage is attached to the house), and when I called the insurance company, they referred me to the rules/recommendations from Boverket.

But I can't make sense of reading Boverket's website; does anyone know what applies?

A fire-rated hatch seems popular, but considering that it's wood shavings as insulation and regular ceiling panels as the interior ceiling, I'm not sure if it makes any practical difference and thus can justify the price difference.

What do you think?
 
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Nenza78
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I'm also interested as we have a similar structure and are about to undertake a comprehensive renovation with a new ventilation unit in the attic and therefore likely replacement of the attic hatch.

I have also considered opening a direct door to the garage and am thus looking for a classified EI30 door that we wish to have a small round window in. It seems difficult to find as standard...
 
I am not really knowledgeable in the area. But I seem to recall that garages attached to the house should be a separate fire compartment. That is, there should be a fire barrier between the house and the garage. Logically, this should require a hatch with the same fire rating unless the attic above the garage has a fire-insulating separation from the house. If the attic above the garage is part of the same fire compartment as the garage, then the attic may not need protection.

But doesn't this appear in the building permit?
 
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johel572
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The garage should be separated from the house, EI30. If it's difficult to find a suitable attic hatch, consider one of the following options:

Extend the separating wall all the way up to the outer roof, i.e., make the attic above the garage a part of the garage's fire compartment.

Create another way to access the attic above the garage other than through a hatch from the garage. For example, a hatch from the outside on the gable or accessing the garage's attic from the house's attic.

EI30 is fairly easy to achieve, so if the "usual ceiling panels" are gypsum or fiber cement or something else non-combustible, it is very possible that EI30 is already achieved. Except for any potential hatch, of course.
 
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johel572
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