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The

PolyurethaneSpray Foamroofing andinsulatingsystem.

Stops Leaks

Minimal/SimplifiedMaintenance

Pays For ItselfIn Energy Savings

The Most EfficientCommercial Insulation

A Proven Roofing AndInsulation SystemIn Use For Over 35 Years

Surface Preparation.

On existing built-up roofs, loosegravel and dirt are removed by power brooming and vacuuming. If neces-sary, blisters and saturated areas of theexisting roof are removed. Sandblast-ing and / or priming are applied tometal surfaces as required. Most roof-ing surfaces are also primed prior tofoaming.

Polyurethane FoamApplication.

Polyurethane foam is appliedwith a two component proportioningmachine.This provides mixing of thecomponents in the spray gun. Thefoam is applied as a liquid and rises ina matter of seconds. Within minutes,the surface is firm enough to bewalked upon. The roof is sprayed tothe design thickness. Flashings, pene-trations and parapet walls are sprayedto form one monolithic surface. De-pressions due to roof sagging can be built up by spraying to facilitateproper drainage.

Elastomeric Coating.

After curing of the foam surface,an elastomeric, weather resistant coat-ing is applied. To ensure uniformcoverage, two or more coats are nor-mally applied. These coatings are de-signed to withstand water, ultravioletradiationand normal wear for manyyears of service. The use of a whitecoating further reduces heat loadand thermal stresses in the structure.

P.O.Box 1509 • Spring,TX 77383 • Phone:800-221-3626 • www.bsna.com

The information and data presented herein is to assist customers and specifiers and is believed to be reliable. Suggestions of uses should not be taken as inducements to infringe on

any particular patent. The seller makes no representation or warranty either expressed or implied as to merchantability, fitness for a particular purpose, or any o ther matter.

BS-SG 5/06

How is BaySystems Spray Foam Installed?

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BaySystems Spray FoamThe versatile roofing and insulating syste

Polyurethane foam is produced bya chemical reaction of a polyol and anisocyanate, in the presence of catalystsand other additives. The result is a rigidplastic that expands during the curingprocess and becomes a seamless layer of closed cell foam.

The “system” includes prepara-tion of the substrate, as well as applica-tion of the foam and the elastomericcoating. This coating produces aweather resistant surface that can bewalked upon for normal maintenance.

Polyurethane spray foam is self flashing on penetrations and walls.

What is aPolyurethane Spray

Foam System?

Why Should You

BaySystems

Spray Foam?

Polyurethane foam can be applied

to surfaces with irregular shapes andpenetrations. Applications includetanks, pipes, cold storage rooms andflotation devices. It’s especially suitedfor roofing, as many applications can bemade over the existing roof. This caneliminate the need for costly tear-off of the old roof.

It’s Versatile.

What are 10advantages ofPolyurethane SprayFoam?

1

Polyurethane foams form mono-

lithic, self-flashing surfaces which effec-tively seal against leaks. Further protec-tion comes from the weather resistant,elastomeric coating applied over thefoam. The foam can be sprayed withslope to drains, facilitating water re-moval.

It Stops Leaks and isWeather Resistant.

2

Complete polyurethane foam sys-tems are typically many times lighter

than tar and gravel roof systems. Whenapplied to an existing roof, the loose ballast removed usually weighs morethan the replacement foam system.This results in the new roof beinglighter than the original.

It’s Lightweight.7

BaySystems spray foams are listedunder UL 790* and UL 723*. UL790roofing systems are listed Class Aovernon-combustible decks and Class Bover combustible decks.*This numerical flame-spread rating is not intended to reflect haz-ards presented by this or any other material under actual condi-tions. Note: Polyurethane foam is an organic material and will burn if exposed to enough heat and oxygen. For interior buildingsurfaces, building codes require an approved thermal barrier.

It’s UL Listed and FM approved.8

BaySystems foams contain noasbestos or formaldehyde.

It’s Asbestos and

Formaldehyde Free.9

Polyurethane spray foam systemshave been applied successfully for over35 years.

It’s A Proven Roofing andInsulating System.

10

A seamless layer of foam is fullyadhered to the substrate-horizontal orvertical-and withstands high windstresses.

It Adheres to MostSurfaces.

3

The applied polyurethane foamsystem usually requires no mainte-

nance. If damaged, caulking is suffi-cient for repair in most cases.

It Reduces and SimplifiesRoof Maintenance.

4

Polyurethane foam is the most effi-cient form of thermal insulation com-mercially available. The systems usu-ally pay for themselves in 2 to 6 years inenergy savings.

It Provides SuperiorInsulating Efficiency.

5

By placing the insulation on theoutside, the foam system reduces build-ing movement and thermal shock.

It Reduces BuildingMovement.

6

Polyurethane spray foam is especially suited tocomplex roofs.

 A petroleum storage tank on the Gulf Coast isinsulated and protected by BaySystems spray foam.

 A Minnesota roundhouse is insulatected by BaySystems spray foam.

In 1937 Bayer invented

Our Experience.

Our philosophy is to prosistent, quality products. We using quality raw materials fsources. All ingredients are acweighed and blended to assformity from batch to batch. batches are quality control tconformity to specifications bleave the blend tanks.

Our Reputation for

Product Quality.

At BaySystems, we’re prour ability to respond quicklycustomers’ needs. Our polyufoam is shipped from coast torefrigerated trailers, when neceensure that the materials are n

heated during transit.

Our Customer Oriented

This illustration shows the

reduction of temperaturethat a building interiorcan receive from the sun’sradiant heat when polyurethane spray foamis applied.

Roof air conditioningheat load is typicallyreduced by 70% to90% when using polyurethane spray foam instead of a built-up or galvanized roof.

Polyurethane SprayFoam System

Elastomeric Coating

Polyurethane Spray Foam

Radiated Heat Radiated Heat

Typical Built-Up

Tar and GravelRoof

Typical Built-Up or Galvanized Roof

Polyurethane Foam with White Coating

Over 8 million sq. ft. of polyurethane spray foam roofing has been installed at Texas A&M University.