House extension   UK
 Home extension guide - how to build a house extension and refurbish your home


About Us Advertise on this site Contact Us Privacy Disclaimer Site Map


Use our professional services for your own home extension plans

Masonry wall construction of a house extension

Masonry external walls, especially those built from lightweight concrete blocks, have varying degrees of porosity, allowing air through. Unfinished mortar joints also provide air leakage routes.

Dry lining

If the dry lining (plasterboard) sheets have not been sealed at the junctions with the ceiling and floor – as well as from sheet to sheet – air can leak through the gaps.































©2012-All rights reserved

This page last updated:

Protected by Copyscape Web Plagiarism Finder