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Missing solid wall in Tabula_de TypeElements #730

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mschumacher247 opened this issue Jan 4, 2023 · 1 comment
Open

Missing solid wall in Tabula_de TypeElements #730

mschumacher247 opened this issue Jan 4, 2023 · 1 comment

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@mschumacher247
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For the construction year 1958-1968 in German SFD of type "_2", e.g. "tabula_standard_2_SFH", a solid wall is missing in the wall construction. Currently the wall only consits of insulation and wood fibreboard of 2 cm. It would make me feel kind of uncomfortable living in this house.

Screenshot 2023-01-04 104327

A solid wall part could be added as in type "_1" of the corresponding contruction year.
@PGorzalka
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PGorzalka commented Apr 20, 2023 •
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Just stumbled across this issue. The facade estimation factors are

            (1958, 1968): {
                "rt1": 1.396,
                "rt2": 0.0,
                "ow1": 1.167,
                "ow2": 0.072,
                "gf1": 0.957,
                "gf2": 0.0,
                "win1": 0.224,
                "win2": 0.0,
                "door": 0.017,
            },

which means that the second wall type is only very slightly influencing the overall U-value. TABULA says 141.2 m² for wall type 1 and 8.7 m² for wall type 2, so about the relation that is implemented here.
Furthermore, TABULA expects a U-value of 0.8 W/m²K for wall type 2. The construction mentioned here gives 0.75 W/m²K which is actually a little too good (!).
Thermal mass is also almost not influenced by this small share of wall area.
My opinion on this is therefore that it's not necessary to change this.

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@mschumacher247 @PGorzalka