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Moisture buffer potential of experimental wall assemblies incorporating formulated hemp-lime

Latif, Eshrar, Lawrence, Mike, Shea, Andy and Walker, Pete 2015. Moisture buffer potential of experimental wall assemblies incorporating formulated hemp-lime. Building and Environment 93 , pp. 199-209. 10.1016/j.buildenv.2015.07.011

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Experiments were carried out according to the Nordtest protocol to study the moisture buffer potential of hemp-lime walls with a range of different internal linings and surface treatments. It was observed that the moisture buffer value was ‘Excellent’ when the inner surface of hemp-lime was exposed. ‘Excellent’ moisture buffer values were also obtained for hemp-lime with lime plaster. All other assemblies demonstrated ‘Good’ moisture buffer value. Moisture buffer values of the assemblies, after application of paint on the upper surfaces, were also determined. It was observed that application of synthetic pigment based trade paint could reduce the moisture buffer performance of the assembly consisting of hemp-lime and lime-plaster from ‘Excellent’ to ‘Good’ while between 61 and 69% reduction of moisture buffer value was observed for the other assemblies. However, the reduced buffer values of the assemblies are still comparable with other moisture buffering building materials. It was further observed that moisture buffer performance was improved when clay based organic paint was used instead of trade paint.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Architecture
Subjects: N Fine Arts > NA Architecture
T Technology > TH Building construction
Uncontrolled Keywords: Moisture buffer value; Hemp-lime; Moisture penetration depth; Sorption isotherm
Publisher: Elsevier
Date of First Compliant Deposit: 27 April 2016
Date of Acceptance: 16 July 2015
Last Modified: 04 Jun 2017 09:03

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