Sean Wynn's Communities Activities

Hevacomp 26 Scotland Building Regulations Part L 2013

Sean Wynn — Tue, 05 Jun 2018 08:17:59 GMT

Hi,

My company currently has Hevacomp 26 installed and we were paid SELECT SERVER customer till 2015. We currently do not have Scotland Building Regulations Part L 2013 in Hevacomp 26 Design Database. We couldn't download the update as we currently are not paid Select Server customers anymore.

However, we were subscribed to Select Server when they updates were released which includes Scotland Building Regulations Part L analysis 2013, can we assume that we are entitled to download it manually without having Select Server subscription.

Can anyone please advise if there is anyway to download the previous updates from 2015 and before when we were paid customers. We are trying to avoid paying what we already paid for to update as we only need Part L for Scotland Buildings Part L 2013.

Thanks

Glazing properties G-value and Computed Glazing properties G-value differences

Sean Wynn — Thu, 12 Apr 2018 14:19:34 GMT

Hi,

I’m currently using Hevacomp Design Database for generating (Part L) BRUKL document for one of my projects.

Couple of rooms in my building are exceeding solar gain limits. I understand this is due to the orientation of the building and the G-value of the glazing.

I tried applying the internal blind to the glazing but some default data in the glazing database does not seems to agree with the computed glazing properties.

For example default glazing type 8 has the same glazing construction as type 20. The only different is type 20 having internal blinds. Please see pictures below for type 8 & type 20.

In default type 8, glazing properties are U-value 1.5, light transmission 0.63, shading coefficient 0.57 and SHGC (G-value) 0.5 which is very similar to computed glazing properties based on the construction U-value 1.469 & G-value 0.6454.

However, in type 20, glazing properties G-value is completely different from computed glazing properties based on the construction. Computed glazing G-value is showing 0.2241 while the glazing properties SHGC (G-value) is at 0.5.

Is it safe to overwrite the type 20 SHGC (G-value) in glazing properties to the same value as the G-value shown in the computed glazing properties based on the type of blind assigned ?

From what I read on the forum, for Part L, we just need to input the U-value, Lighting Transmission, Shading Coefficient & the SHGC (G-value) figures from the manufacturer.

To incorporate the internal blind shading to Part L calculation for solar gain limits, is it safe to overwrite the Shading Coefficient & the G-value of the glazing properties with the G-value from computed glazing data with the type of blind used?

Best Regards,

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Thu, 12 Apr 2018 01:09:38 GMT

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