Fire insulate steel beams

[Reeeeflex]

Does anyone know if you need to fire insulate steel beams in a private residence?

I'm in the process of building a patio with concrete and steel beams.

Björn

 

[JKrister]

Inside the residence perhaps, but a patio we don't even fireproof the wooden beams.

Patios don't have the same fire protection requirements, the residence is another matter. I am far from a fire consultant, but often we cover steel beams in drywall because the steel beam goes through partition walls and it is very difficult to seal the penetration.

 

[Reeeeflex]

The terrace becomes like an extra winter-insulated room.

 

[Stolsben]

https://www.boverket.se/sv/PBL-kuns...boverkets-byggregler/brandskydd/inglasningar/

 

[Reeeeflex]

Thank you "Stolsben"
A lot to read, but I suppose I have to insulate for fire then!

The question is whether it is enough to paint with special fireproof paint, or if it has to be plaster?

Björn

 

[Matti_75]

If there is only one dwelling in the house, there is no requirement for fire protection as the entire house is classified as a fire compartment. The regulations linked apply to buildings with multiple fire compartments, i.e., multiple different dwellings.

 

[Reeeeflex]

Aha ok this concerns my private detached single-family house. With several hundred meters to the nearest neighbor.
Admittedly, the terrace is a separate structure about 10 mm from the house, but only to avoid placing a load on the house's foundations.
Björn

 

[fiskbuggaren]

Inside the dwelling perhaps, but a terrace we don't even fireproof wooden joists.

"Not even"? Isn't there a much higher requirement for fire protection of load-bearing steel structures than wooden ones for strength during a fire?

 

[hempularen]

A terrace built of concrete and steel beams sounds like it requires a building permit. What does the municipality say about fire protection?

 

[GHGH]

Don't see 100% in the picture, but assume it's a 1- or 2-story building with a basement in a hillside? Then R15 protection applies to your deck construction, which can easily be achieved without additional protection. If the beams have a sufficiently low load utilization, they meet R15 (don't have the figure in my head, but we're talking about max 50-60%..)

 

[witten]

Can't see 100% in the picture, but I assume it's a 1 or 2-story building with a basement on a slope? Then R15 protection applies to your deck construction, which can easily be achieved without additional protection. If the beams have sufficiently low load utilization, they meet R15 (don't have the exact figure in my head but we're talking about a maximum of around 50-60% usage..)

How do you justify there being a fire protection requirement for the deck?

 

[Reeeeflex]

A terrace built with concrete and steel beams sounds like it requires planning permission. What does the municipality say about fire protection?

Yes, it requires planning permission. And a site manager.
Don't know what the municipality requires, probably a good idea to ask them!
Björn C

 

[Reeeeflex]

Can't see 100% in the picture, but I assume it's a 1- or 2-story building with a basement in a slope? Then R15 protection applies to your deck construction, which is easy to achieve without other protection. If the beams have a sufficiently low load utilization, they meet R15 (I don't have the number in my head, but we're talking about Max 50-60%..)

Don't know how many percent?

I only know that the engineer wanted to change from HEA 200 to 220 when we changed the drawing (we extended by 1000 mm from the original drawing)

But since the beams were already purchased, he drew in "composite beams," i.e., the beams are fitted with vertical rebar at close intervals that make the beams work with the concrete.

So I would guess they are well utilized, but it's a good idea to ask the engineer.

Björn C

 

[Reeeeflex]

So it's time to go out and weld and cut the beams!

 

[Matti_75]

Since it's just a residence, no fire protection is required. What you should keep in mind is that if you had an escape route through the patio door, you might need to arrange a new one through, for example, a window for your own sake.