Polyisocyanurate Rigid Board Insulation

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Company Profile
YiTac (S) Pte Ltd was incorporated in 2006 with
our core business in supplying building products
and providing engineering services to the
building and construction industry.
We are currently expanding our stable of products
and services whereby our dynamic sales and
engineering team are ready to take on.
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5 Reasons Why Polyisocyanurate Rigid Foam Is The
First Choice
Polyisocyanurate also known as PIR or polyiso is
a thermostat plastic that is produced as a foam
and used for rigid thermal insulation. It is a
development of polyurethane except for the fact
that it has much stronger thermal resistance and
comes with a lot of r- value per inch thickness
than any other kind of insulation material
available on the market. There has been much talk
about its popularity, and this article will
exactly highlight the key factors as to why it is
the top choice for constructors today.
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Our Service

• Polyisocyanurate Rigid Board 
• Polyisocyanurate Foam 
• Polyisocyanurate Rigid Foam
• Pre Insulated Panel Suppliers 
• Pre Insulated Duct

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Polyisocyanurate Rigid Board
Polyisocyanurate rigid board brags of thermal
conductivity of 0.022 W/mK that exceeds the
common 0.023 W/mK thermal performance of PIR
insulation that is offered generally. When a
couple or more layers of polyiso boards are used
to offer specified insulation thickness for a
roof, thermal bridging is dramatically minimized.
To create the most energy efficient installation
in a house, the joints of the PIR board should be
offset to allow creation or reduction of thermal
loss by configuring inside out.
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Fire Performance
All kinds of insulation material before
installation must meet certain fire safety
standards. Amongst all available types of foam
plastics, PIR offers the highest  level of fire
resistance due to its special configuration of
strong chemical bonds that results in high
temperature resistance  up to 360oF which is more
than twice the temperature resistance offered by
other insulation materials.  
Moreover, PIR doesnt melt or drip when exposed
to flame but forms a protective surface char
enhancing its fire resistance and thus preventing
firefighters from any kind of health risks.
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Polyisocyanurate Foam
When multiple layers of polyisocyanurate foam are
used to meet ASHRAE r value needs in a commercial
roof specification, there exists an opportunity
to prevent moisture on the lower side of the roof
membrane. The double layer of PIR prevents
condensation that may result from the extreme
temperature from the opposite side of the layers.
This extends the life of the membrane and
prevents any other kind of accumulation beneath
the membrane thus creating a better quality built
up system.
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Prolonged Membrane Sustenance
Since multilayering of polyiso offers stronger
and more rigid surface underneath the membrane,
this results in lesser chances of cracking and
splitting of water proof membranes. Cracking
usually occurs due to excessive roof movement or
loading that can lead to leakage and need for
repair and replacement. With a layered
configuration of polyisocyanurate foam
insulation, there is significant reduction in
roof movement and hence, this is less likely to
occur.
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Pre Insulated Duct
Pre-insulated ductwork is very lightweight and
its weight is ver less as compared to the
galvanized sheet steel ducting. It is installed
in a single fix and the requirement for the
manual logic process is negated by it.
Besides, it is also less expensive as it is
light-weighted. The lightweight appearance is
helpful in cost savings for the installer and
contractor. It also consumes less space. The
ductwork does not need to be insulated.
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Contact Us
YiTac (S) Pte Ltd 2 Woodlands Sector 1 03-04
Woodlands Spectrum 1 Singapore 738068 Tel (65)
6257-1191 Fax [phone] E-mail
sales_at_yitac.com.sg www.yitac.com.sg