Phenolic Duct Specification - Thermaduct Round and Flat Oval

Phenolic is a high performing alternative duct material that helps HVAC Contractors increase the thermal and duct leakage efficiency of their systems. Using pre-insulated phenolic also means that there is no need for separate ductwork and separate insulation as it is a 2-in-1 solution that does the job of both. For both interior and exterior applications, this duct material can offer many benefits for an installation.

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Below are just a few of the many benefits Phenolic duct systems can offer!

Weight Savings - Save Your Energy in the Field

Ductwork made out of rigid phenolic foam can provide significant weight savings on your project. Indoor systems offer the highest savings, with rectangular, round and flat oval systems all capable of providing over a 70% reduction in weight compared with sheet metal wrapped in fiberglass.

High R-Values - Superior Thermal Performance

Phenolic has an excellent thermal performance with some of the best R- values per inch of insulation available on the market .This superior insulating efficiency means that the required R-value can be achieved with thinner insulation that are highly resistant to heat transfer. This results in reduced energy consumption and lower operating costs for your applications. With the increasing pressure of energy codes always moving towards more insulation, Phenolic duct systems provide solutions that don’t only meet today’s code requirements but those of the future too.

Space Saving - Tight Spaces are No Problem!

Phenolic ductwork is pre-insulated, which means it does not require any additional insulation wrapping. Because of this, space requirements are minimal and duct can be installed in tighter places, including flush to ceilings and walls to free up more space where every square inch matters. You may also need fewer hangers to contend with depending on the size of the ductwork.

Lower Air Leakage - Cut Energy Costs

Pre-Insulated phenolic ductwork assembled and installed in line with the SMACNA Phenolic Duct Construction Standards can easily achieve anything between a SMACNA Class 1 and SMACNA Class 3 leakage rating. The long term benefits of this lower air leakage can include reduced runtime on HVAC equipment over the life of the system therefore bigger energy savings, better Indoor air quality with phenolic’s smooth aluminum interior and improved comfort.

UL 181 Listed Safety - 25/50 Fire and Smoke Performance

Some Phenolic Ductwork systems have gone through extensive UL testing to achieve a UL 181 Listed status, starting back in . This is an extensive and rigorous series of tests and ongoing inspections that covers many aspects of safety and product durability - structural testing, pressure testing, mold and bacteria growth, static load and flame and smoke spread, among others.

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The fire performance of phenolic foam is exceptional. It combines zero or very low flame spread with negligible smoke emission and a very low level of toxic gas emission. Phenolic foam is a thermoset material therefore will not run melt or drip when it comes into contact with a fire source.

Phenolic foam can, in an appropriate form, achieve all the following European fire certifications:
EN -1 Euroclass B-s1-d0
UK Class O / Low Risk in Scotland
Dutch NEN / Class 1
German B1
Belgian A1
French M1
Scandinavian NT 036 Class 1
AS / NZS Part 3 0,0,0,0-1
AS BCA Class 1

In addition, phenolic foam used in factory engineered composite panels can achieve up to 2 hours of fire resistance (insulation/integrity) in the 3m furnace test.

As part of a ventilated rainscreen façade or a rendered external insulated wall system phenolic foam can limit fire propagation up the outside of the building. Through testing to BS and BR 135 phenolic insulated systems can meet the UK Building Regulation requirements for use in high rise construction (above 18metres)

Phenolic foam evolves exceptionally low smoke when exposed to fire and is capable of meeting or exceeding all international building regulation requirements.

Toxic gas emission from phenolic foam is generally limited to carbon dioxide and carbon monoxide with very low levels of other gases. Phenolic foams can achieve very low toxic gas ratings in tests such as UK Naval Engineering Standard NES 713 and Scandinavian NordTest NT036.

Closed cell phenolic offers the best thermal resistance, i.e. the lowest thermal conductivity, of any readily available building insulation material. This results from its:

• Closed cell structure
• Very small cell diameter
• Low thermal conductivity material and gas permanently encapsulated in cells

Closed cell phenolic foam is also notable in that the thermal properties do not deteriorate noticeably with time

Closed cell phenolic foam offers the following benefits:

The thermal conductivity or Lambda (λ) values range from 0.018 W/m.K depending on national certification requirements. Excellent low thermal conductivity allows reduction in long term energy costs whilst conforming to standard buildling constructions, as thin panels give very good insulation value.

Closed cell phenolic foam shows up to 100% more thermal resistance than other common insulation materials.

Higher thermal efficiency allows reduced insulation thicknesses to be used thereby saving valuable space, and enabling current and future building codes for energy, cost and CO2 saving to be easily met.

Are you interested in learning more about ceilings phenolic foam board(tr,uk,es)? Contact us today to secure an expert consultation!