Thermal Technical Analysis of Lightweight Timber-Based External Wall Structures with Ventilated Air Gap

Round 1

Reviewer 1 Report

• The abstract defines two research directions. It would be good to clearly define the connection and link between these research directions, to set a clear goal.
• Experimental analysis of the influence of ventilated air gaps to achieve an ideal agreement of numerical simulations and measured physical properties is based on generally known contexts in the field of building physics.
• In terms of the division of wooden buildings and wood-based structures - there is no mention of hybrid structures, with a wood base, which are currently increasingly used.
• Increasing the shares of wooden buildings on the construction market is not a new idea. This trend has been known in CZ since about 2005.
• It is not stated which measuring device was used (no specification is given).
• Very low temperatures - roof cladding and clear sky: the text again defines in principle the well-known connections from the field of building physics in relation to structures and objects, without giving data.
• The Discussion chapter states that ".... The subject of this research was a winter thermal analysis of a light exterior wood-based wall structure. The aim of the paper is to expand information about thermal processes in them...."- this does not correspond sufficiently with the abstract.
• The conclusion states "..... The subject of this research was the thermal analysis of a light external wall based on wood constructions in winter conditions. The evaluated structures are part of an experimental building, built in the passive standard ......" A more detailed description of the examined building in the passive standard is missing. The subject of research does not sufficiently correspond to the abstract (see, for example, the emphasis on the winter period - the conclusion of the article).
• There are no sources for images, who is the author of photographs, drawings, localization, etc.
• The theoretical basis is weak.
• The results are applicable in one country (CZ). With regard to the boundary conditions, the results cannot be applied to otherwise climatically stressed areas.
• There is a lack of a broader search in the international context of the studied problem (1. Introduction).

Author Response

Please see the attachment.

Comments:

• “The abstract defines two research directions. It would be good to clearly define the connection and link between these research directions, to set a clear goal.” – the abstract modified, line number 14-20 (red font)
• “Experimental analysis of the influence of ventilated air gaps to achieve an ideal agreement of numerical simulations and measured physical properties is based on generally known contexts in the field of building physics.” – I agree, measured data confirm generally known contexts
• “In terms of the division of wooden buildings and wood-based structures - there is no mention of hybrid structures, with a wood base, which are currently increasingly used.” – added, line number 38-40 (red font)
• “Increasing the shares of wooden buildings on the construction market is not a new idea. This trend has been known in CZ since about 2005. – I agree, revised – line number 45-47 (red font)
• “It is not stated which measuring device was used (no specification is given). – added in Chapter 2.2.” specification added – line number 135-139, 142-144 (red font)
• “Very low temperatures - roof cladding and clear sky: the text again defines in principle the well-known connections from the field of building physics in relation to structures and objects, without giving data.” – Measured data are given in Chapter 3.2 (The maximum difference found between the outside air temperature and the temperature inside the air gap is 5.5 °C…, etc.)
• The Discussion chapter states that ".... The subject of this research was a winter thermal analysis of a light exterior wood-based wall structure. The aim of the paper is to expand information about thermal processes in them...."- this does not correspond sufficiently with the abstract. – the abstract modified, line number 14-20 (red font)
• “The conclusion states "..... The subject of this research was the thermal analysis of a light external wall based on wood constructions in winter conditions. The evaluated structures are part of an experimental building, built in the passive standard ......"A more detailed description of the examined building in the passive standard is missing. The subject of research does not sufficiently correspond to the abstract (see, for example, the emphasis on the winter period - the conclusion of the article).” – more description of the examined building added – line number 387-389 (red font) AND  the abstract is modified, line number 14-20 (red font)
• “There are no sources for images, who is the author of photographs, drawings, localization, etc.” – The author of all images is the author of the paper
• “The theoretical basis is weak” – added, line number 169-181 (red font)
• “The results are applicable in one country (CZ). With regard to the boundary conditions, the results cannot be applied to otherwise climatically stressed areas.” - I agree, but the results are applicable not only in the Czech Republic but also for other countries with similar climatic conditions, ie for countries in temperate climates.
• “There is a lack of a broader search in the international context of the studied problem (1. Introduction).” – the Introduction is modified, line number 45-75 (red font)

 

Author Response File: Author Response.docx

Reviewer 2 Report

please see my comments in the atatched file

Comments for author File: Comments.pdf

Author Response

Please see the attachment.

 

Comments:

• „Add country“ – added, line number 7 (green font)
• „was paid“ – canceled, the abstract is modified according to 1 reviewer 's request
• „factors or parameters“ – revised, line number 22 (green font)
• „Please extend your state of the art. The introduction is too short and I think that it can be improved“ – extended, line number 45-75 (red font)
• “Rewrite this !!” – revised, line number 89-90 (green font)
• “since you mention its name and you gave us these photos, you should provide some more information (when it was built etc)” – added, line number 94-99 (green font)
• “please give some more details on this point” – added, line number 104-108 (green font)
• “Table 1” – revised, line number 144 (green font)
• “enlarge this !!” – revised – Figure 4,5 – line number 146-149
• “omit the term results, the same applies to subsession” – revised, line number 239, 284 (green font)
• “merge in one single paragraph” – revised, line number 395

Round 2

Reviewer 1 Report

The article has been modified according to my comments. I recommend to publish.