ACOUSTIC AND THERMAL

INSULATION MATERIALS
By Aparna.V 39210007
 THERMAL INSULATION

• Thermal insulation is material that helps reduction of transfer of

heat between objects. These materials are used all around you to
keep heat from escaping or entering rooms or objects, and from
protecting flammable objects from excess heat.

ACOUSTICAL INSULATION
• Acoustical insulation helps reduce the transfer of noise that
enters, exits or travels within a room or space. Unwanted or excess
noise can cause distraction, headaches or even hearing loss in
extreme cases.When a room is soundproofed, the usually porous
material, like foam or sponge, absorbs sound waves to reduce
direct sound, echoes and reverberation.
SPRAY POLYURETHANE FOAM (SPF) INSULATION
• A two component mixture comes together at the tip of a gun, and forms an
expanding foam that is sprayed onto concrete slabs, into wall cavities of an
unfinished wall, against the interior side of sheathing, or through holes drilled in
sheathing or drywall into the wall cavity of a finished wall.
• BENEFITS
SAVE ON ENERGY COSTS
BETTER INSULATION
MOISTURE PROTECTION
NOISE REDUCTION
• USE
Spray polyurethane foam (SPF) is a spray-applied plastic that is widely used
to insulate buildings and seal cracks and gaps, making the building more energy-
efficient and comfortable.

• Types of Spray Polyurethane Foam (SPF)

SPF insulation is categorized into two types of products:
Two component open-cell foam (ocSPF)
Two component closed-cell foam (ccSPF)
 CELLULOSE ISULATION
• Cellulose is an loose fill insulation, most commonly used as a blow-in material. it is
manufactured from recycled cardboard, paper and other similar materials. It is a
tightly compacted material that contains practically no oxygen, making it an
excellent material for fire resistance. In addition to unfinished attics, cellulose can be
installed into walls or ceilings of existing structures by blowing it in through small holes
drilled from the exterior of the house.
• BENEFITS
Effective application
Enhance fire resistance
Inexpensive and Environmentally friendly
• USE: Cellulose insulation is plant fiber used in wall and roof cavities to insulate,
draught proof and reduce free noise.
• Types of Cellulose
• Four major types of loose-fill cellulose products
Dry cellulose (loose fill)
Spray-applied cellulose (wet-spray cellulose)
Stabilized cellulose
Low-dust cellulose
 EXPANDED POLYSTYRENE (EPS)
• Expanded polystyrene (EPS) is a rigid, closed-cell insulation material
manufactured in many different densities to resist compressive loads. EPS is
made from molten polystyrene beads that are formed into blocks or boards.
EPS can be cut with a saw and resists water absorption and vapor
penetration. EPS building insulation applications include roofs, attics,
foundations, wall insulation and slab insulation. The R-value of EPS is a
relatively high value of R-4.6 per inch of material, which does not degrade
over time. Another benefit of EPS is that it Extended exposure to the sun will
degrade the product.
• BENEFITS
Lightweight
 resists water absorption
does not support the growth of mold or mildew.
• USE: Expanded polystyrene is also commonly used
for drinking cups, packaging and coolers.
 STRUCTURAL INSULATED PANELS( SIP)
• Structural insulated panels (SIPs), also called stressed-skin walls, use the same
concept as in foam-core external doors, but extend the concept to the
entire house. They can be used for ceilings, floors, walls, and roofs.The panels
usually consist of plywood, OSB, sandwiched around a core of expanded
polystyrene, polyurethane, polyisocyanurate, compressed wheat straw, or
epoxy.
• BENEFITS
Energy efficient
 Stronger
Quieter and more airtight than older technologies
Lower energy bills
USE:
Structural insulated panels (SIPs) are
engineered panels used to construct walls, ceilings,
and floors.
 RIGID PANELS/INSULATION
• Rigid panel insulation is made from fibrous materials (fiberglass, rock and slag
wool) or from plastic foam. They are sometimes sold in sections designed to
fit tightly in standard wall cavities. Rigid panel continuous insulation is often
used to provide a thermal break in the building envelope, thus
reducing thermal bridging.

• BENEFITS
 High r-value per unit thickness
Lightweight and strong
Adds to the walls' structural strength.
It provides acoustic insulation in addition to thermal.

• USE: It is an excellent option for every other home area,

including foundation walls, regular walls, roofs, and attics
 INSULATED CONCRETE FORMS( ICF)
• ICFs are hollow, light-weight “stay in place” forms made of two Expanded
Polystyrene (EPS) panels which are connected by polypropylene webs.
During construction, the forms are stacked to the desired height then filled
with concrete making stable, durable and sustainable walls
• BENEFITS
 Energy-Efficiency = Massive Energy Savings & Reduced Environmental
Impact.
Greater Comfort.
Safe & Disaster-Resilient.
Build Faster and Easier = More Time Savings and Profits
• USE:
Insulated Concrete Forms (ICFs) are forms for cast-in-place, reinforced
concrete walls. The forms are left in place permanently to serve as thermal &
acoustic insulation, space to run electrical wiring & plumbing, and as
backing for gypsum boards on the inside and stucco, brick, or other siding
on the outside.
 EXTRUDED POLYSTYRENE (XPS)
• While extruded polystyrene (XPS) resembles EPS, it is manufactured using a
different process. XPS is sometimes referred to as StyrofoamTM, which is a
trademarked extruded polystyrene material owned by The Dow Chemical
Company. XPS is easily visually distinguished from EPS material by its color.
EPS is white, while XPS is blue, green or pink. XPS is recyclable and commonly
used in below-grade applications.
• BENEFITS
 Good thermal conductivity
Highly resistant to different temperatures
 improve a building's energy efficiency by providing
A complete layer of insulation on the wall
USE:
It's primarily used in the form of white or grey panels to insulate floors, walls,
roofs, or terraces. It's worth noting that grey EPS shows a better thermal
performance (around 10 to 20%), which makes it possible, for example, to
reduce the thickness of the polystyrene panel when it's used as insulation.
 MOLDED EXPANDED POLYSTYRENE (MEPS)
• Polystyrene pellets are mixed with various chemicals to liquefy them. A
blowing agent is then injected into the mixture, forming gas bubbles, which
produce a closed-cell material that are then molded into large sheets.
Commonly known as beadboard, it has an R-value of about 4 per inch of
thickness.(XEPS) Foam Board Extruded expanded polystyrene insulation is
similar to MEPS, but the foaming, thick liquid is forced through a shaping die.
• BENEFITS
 Cost-effective
Energy-efficient insulation in construction applications
Cushion transport packaging material for shock sensitive goods
USE:
Molded expanded polystyrene (MEPS) is a closed-cell material that can
be molded into many everyday items, such as coffee cups and shipping
materials, or into large sheets of foam board insulation. MEPS foam board
insulation is commonly known as beadboard.
 CASE STUDY
BUILDING: The Halifax Hospice
LOCATION: Canada
LEAD ARCHITECT: Anne Sinclair
APPLICATION: Insulation (walls &
ceilings)
DURATION: Fall 2017 to spring 2019
INSULATION MATERIAL USED :
Spray Polyurethane
Foam
Cellulose isulation
THE CLIMATE OF THE SITE
The Halifax hospice project is a very unique property located here in Halifax it is the
first auspice that the city has ever had the residents that are coming here are in an
end-of-life state they'll be much more susceptible to cold and humidity and things of
that nature
USER
Patients and their families

SPF WHY IS IT USED

spray foam an unvented situation in the roof is dynamically it's one of the most
difficult things to do because typical insulation require a lot of air movement to
take care of that spray foam doesn't spray foam will connect control and bring
everything back to it it's so important in a building like this to have a monolithic
building envelope from the thermal design spray foam provides that very feature
in quality spray foam has one huge advantage over most products it's completely
monolithic it has no joint and can be sprayed on top of itself it can be sprayed in
area a piece of insulation or a pad of insulation can never get connected into it
 CELLULOSE WHY IS IT USED
The cellulose we were using in the dense pack application which is going to
provide sound dampening and thermal properties in a mechanical room
cellulose is a very important product in this project because it has very low
sylvie's it has no order and for a building whether it's for a school or hospital the
importance of having the green guard gold is optimal and this ensures the
safety of the people inside
 SOME VIDEOS ABOUT THE CASE STUDY

• The Halifax Hospice

https://youtu.be/X_tgEdDp08o
• Spray Polyurethane Foam
https://www.youtube.com/watch?v=6-xPIgRLuBE
• Cellulose
https://www.youtube.com/watch?v=CVxvVjHsEVg
THANK YOU