Advantages
of Spray-In-Place Polyurethane Foam (SPF) Roofing
SEAMLESS
- SPF is a seamless system. There are no seams or joints to allow
water, heat or air to enter the building through the roofing system.
Regardless of building size or shape there will be no seams.
SELF-FLASHING
- Due to the ability of spray-in-place polyurethane foam to conform
to whatever surface it is applied to, SPF is ideal for flashing
parapet walls, roof penetrations, and roof mounted equipment;
such as HVAC equipment, vent stacks, pipes, skylights, etc. The
self-flashing ability of polyurethane foam eliminates many roof
leaks caused by faulty flashing.
LIGHWEIGHT
- SPF roofing systems weigh approximately 60 pounds per 100 square
feet compared to 600 pounds per 100 square feet for conventional
BUR systems. This is ideal to apply over existing BUR minimizing
additional weight.
INSULATES
- Polyurethane foam has the highest "R" value of any
roofing product on the market. With an "R" value of
7.14 it enables Exteriors Unlimited to provide more thermal resistance
with less material than any other insulation.
MINIMIZES
PONDING WATER - A unique advantage of spray polyurethane foam
roofing systems is the ability to slope existing roof to allow
ponding water to be redirected to drains by adding an increased
thickness in low areas. This means that each roof can be individually
designed to meet the customers needs.
VERSATILE
- SPF can be used on new roofs as well as reroofing projects.
It can be used on surfaces whether they are flat, pitched, domed,
metal, wood, concrete, etc. It is an ideal system for insulation
to tanks, coolers, piping, ductwork, freezers, and perimeter wall
insulation for new construction homes or metal buildings.
WATER
& AIR TIGHT - The closed cell structure of polyurethane
foam resists the penetration of water and air. It is a US Coastguard
approved material for flotation.
STRENGTH
- While very lightweight, polyurethane foam is strong. It will
not pack down or sag.
FLEXIBLE
- Polyurethane foam has the ability to withstand the strain of
normal expansion and contraction of a structure without affecting
the ability to remain adhered and sealed, protecting the structure
from outside elements.
LONG LIFE
- SPF roofing systems are renewable. While other systems need
to be removed and replaced after their usual life expectancy,
SPF need only be repaired and recoated with the elastomeric coating
system for many years of service.
MAINTENANCE
- A Maintenance Agreement is available to our customers from Exteriors
Unlimited. In addition, after a brief instructional meeting in-house
maintenance personnel can make minor repairs at minimal cost using
a hand caulking gun and urethane sealant.
EASE OF
APPLICATION - SPF roofing systems can be installed in a relatively
short period of time with little or no disruption of building
operations by Exteriors Unlimited.
LOWERS
SURFACE TEMPERATURE - On a 90° day a typical black rubber
(EPDM) roof can measure up to 200° at the surface. With a
white reflective coating our SPF roof will maintain less than
120° on the surface. The white coating is very reflective
and helps lower energy costs to the building owner.
For more
information about Pella Roofing & Insulation. and our products
and services, please feel free to contact us anytime at Office
Phone: 319-223-5137 or 866-699-3967. For email inquiries, please
write to ExteriorsUnlimited@eunlimitedinc.com
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