SAP software recommendations?

[Drellingore]

On 13/07/2025 at 09:45, Drellingore said:

What I've learned this far in the project is that I do a better job than most (but not all) of the professionals we've paid

Case in point: when doing SAP calculations, I just noticed that the Passivhaus consultant appears to have accidentally added over 100sqm of extra walls that don't exist to the property...

[JohnMo]

42 minutes ago, Drellingore said:

Case in point: when doing SAP calculations, I just noticed that the Passivhaus consultant appears to have accidentally added over 100sqm of extra walls that don't exist to the property...

But isn't the point of you as the property owner checking documents and having them corrected, by your so called consultant?

 

Maybe my engineering background and the obligatory nature of documents reviews and sign off, be it bythe contractor or by client, both have equal responsibility to get stuff done correctly.

 

I never hung back with feedback for all design and as built documentation and made sure it represented what I had paid for or what had been built - not what someone thought they could fob me off with.

[saveasteading]

4 hours ago, Drellingore said:

100sqm of extra walls that don't exist

What effect do they have on the results? For interest, not to keep false figures. I'm wondering if the consultant has enough knowledge to have an expected outcome to compare to. ie does that look right?

[SteamyTea]

13 hours ago, saveasteading said:

ie does that look right

Intuition and a good sense of proportion is so important in most areas, especially important in engineering, which housebuilding is.

I am not sure if I have learnt it, or I have a natural ability to estimate the outcomes. Though there are some things that I find hard to judge at work, portion sizes are one, I look at what I think is good value for money, not what the company dictates is the right size (eating out is such a rip off really).

[Drellingore]

On 20/07/2025 at 16:21, JohnMo said:

But isn't the point of you as the property owner checking documents and having them corrected, by your so called consultant?

 

I'd be inclined to agree with this, but in this instance you're not allowed to see the PHPP model itself unless you also buy a licence. So this calculation is normally 'behind the curtain'.

 

22 hours ago, saveasteading said:

What effect do they have on the results?

 

Removing them drops the heat demand by 6kWh(m²a), or about 28%.

 

[saveasteading]

And they want paying for that?   Grrrr!

[Drellingore]

On 21/07/2025 at 18:51, saveasteading said:

And they want paying for that?   Grrrr!

 

So I've told him that I'm not paying the remaining 25% of the fee because the deliverables contained significant undisclosed errors. Am I being unreasonable?

[Mr Punter]

13 hours ago, Drellingore said:

 

So I've told him that I'm not paying the remaining 25% of the fee because the deliverables contained significant undisclosed errors. Am I being unreasonable?

 

Why don't they just correct the errors?  100m2 of additional wall area is significant.  It must impact on building volume, footprint, ventilation, airtightness etc.

[Drellingore]

2 hours ago, Mr Punter said:

 

Why don't they just correct the errors?

 

Because I've already done it for him.

[SteamyTea]

1 hour ago, Drellingore said:

3 hours ago, Mr Punter said:

 

Why don't they just correct the errors?

 

Because I've already done it for him.

25% off their bill seems pretty cheap for software training.

As my mate from the Midland's would say' "that will learn ya"