Current
Core Supplement
Data Sheets
Examines good practice principles including mortar joints and joint profile, obstructions in the cavity, wall ties, mortar type, cavity insulation, cavity trays and dpcs and constructional details. Offers remedial solutions such as repointing, water repellent coatings and rendering and cladding.
Replaces Data Sheet 12 Guide to minimising rain penetration through masonry walls. Issue 5 (MPAM, 2021). First published 1983. Issue 1, January 2001. Issue 2 2005. Issue 3 September 2014. Issue 4 June 2015. Issue 5, September 2021. Issue 6, October 2023, MPA Mortar.
MPA Mortar, was previously known as the Mortar Industry Association (MIA) until 2020. It is a component part of the Mineral Products Association (MPA), the trade association for the aggregates, asphalt, cement, concrete, dimension stone, lime, mortar and silica sand industries. MPA Mortar members provide products manufactured to internationally and long-established production technology, ensuring consistently high quality standards.
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.