## 1 Introduction
The remaining studies did not consider any cooling strategy of the PCM, and the benefits are subsequently lower. In the recent work [43], the authors presented an experimental and a parametric study with a novel cost effective spackling material incorporated with microencapsulated PCM (MPCM) produced by Scanscap [44]. It can be realized that a high production cost is involved in the process of making gypsum boards incorporated with MPCM. The spackling material (contains fillers, MPCM, rheological additives and binding agents) acts as a primer coating material at internal wall and ceiling surfaces of building envelopes for passive thermal management and is supposed to cover the entire surface. Additionally, \begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Reference** & **Type of Study** & **Location** & **PCM Configuration** & **Results** & **Cooling Strategy** \\ \hline
[34] & Numerical & Yazd, Iran & PCM integrated into building envelope & 29.6–53.8\% cooling load reduction & NV \\ \hline
[35] & Experimental & Mathura, India &
\begin{tabular}{c} Macroencapsulated PCM \\ integrated into building envelope \\ \end{tabular} & 38.8\% cooling load reduction & NV \\ \hline
[37] & Experimental & Auckland, New Zealand &
\begin{tabular}{c} Macroencapsulated PCM \\ in active storage system \\ \end{tabular} & 10.0-30.4\% energy reduction & AC \\ \hline
[38] & Experimental & Lleida, Spain &
\begin{tabular}{c} Macroencapsulated PCM \\ integrated into building envelope \\ \end{tabular} & 15\% energy reduction & Heat pump \\ \hline
[40] & Numerical & Mediterranean cities & PCM incorporated plaster & 2.5–7.2\% energy reduction & NV \\  & & on exterior surfaces & & \\ \hline
[39] & Numerical & Chinese cities & PCM incorporated mortar walls & 7.7–12.9\% energy reduction & AC \\ \hline
[41] & Numerical & Béchar, Algeria & PCM integrated & 24.3\% cooling load reduction & None \\  & & wallboards & 1\% energy reduction & \\ \hline
[23] & Experimental & Auckland, New Zealand & PCM integrated & 76–92\% energy reduction & NV \\  & & wallboards & & \\ \hline
[36] & Numerical & Beijing, China & PCM integrated & 76\% energy reduction & NV \\  & & wallboards & & \\ \hline
[42] & Numerical & Farwaniya, Kuwait & PCM integrated & 5–7\% cooling load reduction & None \\  & & wallboards & 5\% energy reduction & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: PCM’s impact on cooling performance. the application of this coating material lies of the range of 1-4 mm at the internal wall and ceiling surfaces of a building. This can be achieved by very simple operations. One of the key advantages of this coating material is that a large surface area of the material can be available for direct and effective interaction with the air inside the building spaces. Moreover, spackling materials can easily be retrofitted into existing building mass as it can be applied to gypsum boards, plasterboards, concrete or bricks. In this work, we further investigate this novel MPCM enhanced spackling material in combination with NV in building applications. Summer conditions in the climate of Oslo, Norway, is chosen to study the spackling material mentioned above. A particular focus of this work is the realistic usage of the material in office environments, complying with the current Norwegian building code, TEK-17 [45]. The work is organized as follows: in Section 2 the methodology and the description of the case studies are presented. The detailed analysis of the results is given in Section 3. Finally, the conclusions are drawn in Section 4.