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Why a CLEANAIRE HRV?A Cleanaire Heat Recovery Ventilator will CONTINUOUSLY:* REDUCE HUMIDITY AND REMOVE CONDENSATION * EXHAUST STALE, HUMID POLLUTED AIR * REPLACE STALE AIR WITH FILTERED DRY, WARM OUTDOOR AIR * TRANSFER WASTE EXHAUST HEAT TO INCOMING FRESH AIR * DISTRIBUTE HEAT AROUND THE HOUSE * SAVE UP TO 15 TIMES MORE ENERGY THAN IT COSTS TO RUN * REDUCE GREENHOUSE GAS EMISSIONS BY RECYCLING ENERGY Healthy Homes Need Efficient, Controlled, VentilationThe Building Code specifies ventilation requirements.Effective vapour barriers, window and door seals make a modem home virtually airtight, retaining indoor heat and meeting energy efficiency standards. Unless positively ventilated, indoor humidity and stale air, rapidly increase.Excessive humidity causes condensation, mould, and mildew, which slowly but surely destroys surface finishes and furnishings. Stale air contains pollutants and irritants which activate allergies, cause tiredness, headaches, dizziness, and nausea. A warm, humid, stale atmosphere encourages the spread of winter viruses between occupants. Stale air contains carbon-dioxide (C02) which results from the simple act of people breathing. Excessive CO2 is poisonous to humans, causing drowsiness, tired eyes, and irritability. "Just the thought of breathing stale air, expelled by other occupants, is a good reason to ensure adequate ventilation of your home"The introduction of the Building Regulations 1992, ensured a market for home ventilation products because the Building Code demand "tight homes" but its answer to home ventilation remained "opening windows." Open windows mean insecurity and energy losses. Therefore homes do not get ventilated, indoor moisture accumulates, unhealthy IAQ results, and structural damage occurs, (see our references to BRANZ, which has published numerous articles on moisture, rotting and failure of treated timber framing, some in homes less than 3 years old). New Zealand Standard (NZS4303) "Ventilation for Acceptable Indoor Air Quality" is identical to that from the United States. Visit http://www.dspinspections.com/moldin.htm for a very relevant report from an independent building inspector voicing concern about the adoption of these standards without proper regard for ventilation. You may not know that some major areas of home construction today only have to meet durability time (lifetime) of 5, 10 or 15 years! The days of the 100 year home are numbered. Structural durability is not an area of our expertise, but what we see, time and time again is failed durability due to totally inadequate ventilation design. The writer has personally seen over twenty homes in the past three years with $2000, $20000, $40000 (the worst was $60000 damage to a 2 year old Christchurch home), repair bills after just two or three years of being a new home. If you don’t believe this -- just take a look at the following references from BUILD to help you understand how the most expensive investment you will make can become another "Horror Story" …… (we suggest you print this page to take to the library as a reference --- its not a 5 minute read either!!) Magazine data that you must read before you build your new home or additions.The Building Research Association of NZ (BRANZ) publishes the information magazine BUILD Dozens of horror stories have been published on IAQ and moisture in homes. No subject has had more attention in the last 5 years than water problems in homes … leaking weatherproofing, excess indoor moisture due to poor ventilation, sick homes, dust mites, humidity and occupant health etc etc …. in the following articles there are horror stories that Builders, Specifiers and Architects keep in their bottom drawer. This is NZ research and reporting, by the NZ building industry, on current problems in the NZ building industry…….Its your money they are spending.After you read these articles you may consider including in your building contract some special clauses relating to Building Performance and Durability over a period, say 5 years. Why should you have to meet a $20000 to $70000 (moisture damage) repair bill after five years ??? The full indexed list is on http://www.branz.org.nz, to read the articles you need to visit your local library or they are available as back issues from BRANZ (0800-80-80-85). We recommend that if you are building a new home, you research at least some of these articles ---- here are some we consider "essential reading" ---- BRANZ BULLETIN No 367 CONDENSATION -- this one is $6 from BRANZ and gives an independent opinion on condensation in NZ homes.www.smarterhomes.org.nz/design/ventilation/ BUILD Magazine
BRANZ also publish hundreds of 'BULLETINS' that offer expert advice on almost every kind of home building problem.
UNCONTROLLED MOISTURE DAMAGE IN MODERN HOMES
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