Hello!
I have a house where I have received building permission to convert one space into two apartments.
After drilling through the wall and documenting how it's built, I'm struggling to see how I can meet the EI60 requirements, especially concerning the ceiling.
The fire safety consultant has specified that the ceilings and walls should meet EI60 between the apartments and provided a link to a Paroc guide on how to achieve EI60 walls. See attached image.
But since I am not building new walls and already have existing walls, I wonder what needs to be added to achieve the correct standard?
Measured:
Interior load-bearing walls
Tongue and groove wood
130 mm wood
Tongue and groove wood
The floor structure looks like this:
22 mm tongue and groove wood
50 mm air gap/studs
28 mm tongue and groove wood
Then comes 100-170 insulation
Gypsum/wood paneling
I have a house where I have received building permission to convert one space into two apartments.
After drilling through the wall and documenting how it's built, I'm struggling to see how I can meet the EI60 requirements, especially concerning the ceiling.
The fire safety consultant has specified that the ceilings and walls should meet EI60 between the apartments and provided a link to a Paroc guide on how to achieve EI60 walls. See attached image.
But since I am not building new walls and already have existing walls, I wonder what needs to be added to achieve the correct standard?
Measured:
Interior load-bearing walls
Tongue and groove wood
130 mm wood
Tongue and groove wood
The floor structure looks like this:
22 mm tongue and groove wood
50 mm air gap/studs
28 mm tongue and groove wood
Then comes 100-170 insulation
Gypsum/wood paneling
You can use something called the addition method to calculate an appropriate wall construction. It is based on adding up the fire resistance of all the layers in the wall and weighting them depending on where they are located in the wall. Solid wood has quite good resistance to fire, especially if it is clad with gypsum, so it should not be a problem for you to achieve EI60. It might be more challenging to make it tight enough in an old house.
Hello PNO!
Thanks for the super quick response!
Okay, and how do I do that when it is for the inner wall:
130 mm trä
spåntat virke 22 mm on each side.
And for the floor structure which is:
22 mm spåntat virke
50 mm luftspalt/reglar
28 mm spåntat virke
100-170 mm isolering
Thanks for the super quick response!
Okay, and how do I do that when it is for the inner wall:
130 mm trä
spåntat virke 22 mm on each side.
And for the floor structure which is:
22 mm spåntat virke
50 mm luftspalt/reglar
28 mm spåntat virke
100-170 mm isolering
https://www.traguiden.se/om-tra/byg...rakonstruktioner/avskiljande-formaga/exempel/
There is a lot of useful information on this website.
There is a lot of useful information on this website.
15mm gtf is a special fire protection gypsum. Otherwise, you need double gypsum if you choose regular gypsum. 12.5 gta
I interpret 70mm as a minimum but I could be wrong.
I interpret 70mm as a minimum but I could be wrong.