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Thursday, May 13, 2010
Welcome ! Please take the time to find and read these postings on thermal and acoustic insulation in South Africa. We welcome all building professionals - architects, quantity surveyors, designers, specifiers and professional building contractors, as well as property owners to register and participate in the feed of this Blog. Mail your queries to the Blog Administrator at: email@example.com
Ceiling bypasses are hidden air passageways that lead from the heated space into the attic. Because warm air rises, it continuously moves along these passageways and escaping into the attic during winter. The reverse occurs in summer. So even though the roofspace above the ceiling could be at ambient temperatures, these bypasses make it possible for heat to travel into the house, hence wasting energy.
Eco-Insulation says that adding insulation alone without sealing air leaks is not going to help much. Also, water vapor carried with the escaping warm air in winter may condense and build up in the insulation, reducing R-values and causing structural damage. Indeed, When moisture problems appear in the roof after it has been insulated, ceiling bypasses are often the cause.
To avoid these types of water problems and to receive full benefit from your insulation, you need to plug up your attic bypasses. But before sealing they have to be found. Signs to look for are wet insulation, dirty insulation, dust build-up underneath the insulation and water staining under the insulation.
Wednesday, May 5, 2010
The chances are good that the average home or office would benefit enormously from adding cellulose ceiling insulation, even where there is an exising layer of insulation present.
WHY? Let me explain:
Many existing insulation systems compress with time with the load of dust and humidity in the roofspace, hence becoming much less effective in trapping dormant air and thus losing R-values.
Eco-Insulation teams have been involved several times in the removal of old glass mat insulation and its replacement, or simply pumped a new layer of cellulose on top of the non-performing old product.
See the image (above, left) of one of our Teams replacing a popular brand of glass insulation at a client in Gauteng, South Africa.
Then there is the matter of coverage. The best product is one that distributes itself naturally into every corner, recess and cavity above the ceiling and so ensures that there are no uncovered sections of the ceiling through which heat may enter or escape. Eco-Insulation is excellent in this regard, due to our unique delivery system.