How To Repair Foam Roof

A polyurethane cream roof blanket can extend the life of your roof by 10 years or more than.Sprayed Polyurethane Foam deteriorates chop-chop when exposed to the sun's UV-rays. It needs to be coated with a UV protective blanket immediately later on installation. Elastomeric roof coatings are the roofing textile of choice for this awarding.

Typically, polyurethane foam roofs have 1-2 inches of foam sprayed over an existing roof such as metal, built up or modified bitumen. It is then topcoated with an elastomeric roof coating to provide a watertight, UV protective membrane.

Polyurethane foam must be recoated every 10 years or so as a preventive measure out.

Foam Roof Coating

Before: This x twelvemonth erstwhile polyurethane cream roof is badly weathered. Some of the cream is already exposed.

Polyurethane Cream Roof Restoration Process

Cleaning and Surface Preparation

The entire polyurethane roof was thoroughly done using a 3,000 psi pressure washer. A biodegradeable degreaser was used to ensure a clean surface. All seams, flashings and penetrations were carefully sealed to render the roof watertight.

Priming

Priming ensures a proficient adhesion between the polyurethane foam roof surface and the
elastomeric blanket.

Peak Coating

At least 30 dry mils of elastomeric roof coating is applied on the unabridged polyurethane cream roof in 2 coats.

White Rubber Coating

After:

A leak-free, seamless elastomeric roofing membrane at present covers the old, weathered polyurethane foam roof. If this polyurethane cream roof is properly maintained with periodic recoating, it tin have an indefinite life expectancy.

All these benefits for virtually one-half the cost of replacement. What more tin can you ask for?

I. PRODUCTS

i.01 FIXALLROOF RESTORATION Arrangement

The elastomeric roofing organisation for polyurethane foam covering is a spray-practical roof blanket supplied by epdmcoatings.Production Acrylic Arrangement Solvent Organization

1.02 PRODUCT SUBSTITUTIONS

Use Butyl Rubber Blanket, Aromatic Polyurethane Coating or Silicone Blanket instead of PrimeLock Bonding Primer equally the agglutinative for PolyScrim when installing the Solvent Based System.

1.03 RELATED MATERIALS

Roof accessories, flashing, seam tapes and similar materials shall be approved past the manufacturer. All materials used shall exist applied in accordance with its manufacturer's recommendations.

1.04 EQUIPMENT

Visit the Fixallroof website for recommended spray equipment guidelines, or consult the spray equipment manufacturer direct.

II. EXECUTION

2.01 MANUFACTURER'S INSTRUCTIONS

Comply with the instructions and recommendations of the roof restoration system manufacturer.
Comply with manufacturer's product data, including product technical bulletins.

two.02 EXAMINATION

Verify conditions are adequate for application of roof restoration system .
Inspect polyurethane foam roof to receive roof coating and make sure they are clean, sound, properly prepared and free of moisture, clay, debris or other contaminants.
A comprehensive wet survey is to exist conducted to locate and identify areas of trapped moisture and saturated insulation.
Verify that all on-roof items, penetrations, mechanical equipment, hvac drains are in place and secure. All airconditioning and air intake vents should be suitably protected or airtight.
Verify that areas inside the vicinity of the awarding area as protected from overspray.
Verify that all roof drains, gutters, downspouts, take hold of basins are make clean and in working society.

ii.03 Preparation

Cleaning: The entire polyurethane foam roof surface must be clean, sound, dry and free of any contaminants that would interfere with the proper adhesion of the roof coating. This may require pressure washing, scraping, wire brushing or other ways necessary while observing responsible trade practices. All loose paint should be removed earlier applying any product.
Ponding Water: Contractor shall make every try to mechanically eliminate all ponding water areas on the polyurethane foam roof prior to application of any roof coating product.
Repairs: Wet roof insulation and damaged membranes are to exist removed and replaced as necessary to match existing specified fabric. All ponds that concur water over 1″ for more than 48 hours should be mechanically diverted.
Blisters: Remove all wet foam and repair all blisters in accordance with polyurethane cream roof manufacturer's specifications.
Do not utilize coatings until all unsatisfactory conditions take been corrected in a mode acceptable to the original polyurethane foam roofing manufacturer.

2.04 APPLICATION

Inspect polyurethane foam roof to receive roof coating. Always perform a coating adhesion test earlier doing the entire job.
Primer: Entire polyurethane foam roof shall be primed using the advisable primer and following the application rates specified in the table below.
Seams: All seams, penetrations and parapet walls should be flashed using PolyScrim Material and PrimeLock Bonding Primer. Use a thin glaze of PrimeLock Bonding Primer over the seam and curl out 6″ fabric over the seam and utilise another glaze of PrimeLock Bonding Primer over the fabric. Encapsulate the fabric with the advisable elastomeric blanket and feathering information technology at least 2″ to 3″ past the edge of the fabric. Substute PrimeLock Bonding Primer with the advisable topcoat equally outlined in 2.02 above.
Base Coat: Employ appropriate base coat using the application rates specified in the table below. Allow to dry out thoroughly for viii-12 hours depending on humidity and temperature.
Top Coat: Apply appropriate top coat in a cantankerous-hatch technique using the application rates specified in the tabular array beneath. Allow to dry and cure before exposing to pes traffic.

Standard System: Apply the Acrylic System on polyurethane foam roofs with expert slope and no ponding water issues. Utilize the Solvent Organisation when outdoor temperatures are no longer favorable for acrylic coatings.

Acrylic System Primer Base Coat Meridian Glaze

Acrylic Arrangement	Primer	Base Glaze	Top Glaze
Polyurethane Foam Standard System 5-twelvemonth (32 total mils)	PrimeLock Bonding Primer 0.75 gal. / 100 s.f.	Acrylic Elastomeric Coating ane.50 gal. / 100 s.f.	Acrylic Elastomeric Coating 1.50 gal. / 100 due south.f.
Polyurethane Foam Standard System 10-year (xl total mils)	PrimeLock Bonding Primer 0.75 gal. / 100 s.f.	Acrylic Elastomeric Coating ii.00 gal. / 100 s.f.	Acrylic Elastomeric Coating 2.00 gal. / 100 southward.f.

Solvent System	Primer	Base of operations Glaze	Top Coat
Polyurethane Foam Standard System 10-twelvemonth (36 full mils)		Effluvious Polyurethane Blanket 1.l gal. / 100 s.f.	Aromatic Polyurethane Coating 1.50 gal. / 100 due south.f.
Polyurethane Foam Standard Arrangement ten-yr (36 total mils)		Silicone Blanket i.75 gal. / 100 due south.f.	Silicone Coating 1.75 gal. / 100 s.f.
Polyurethane Foam Standard Arrangement ten-year (36 total mils)		Butyl Rubber Coating 2.fifty gal. / 100 s.f.	Butyl Condom Coating two.50 gal. / 100 southward.f.

2.05 FIELD QUALITY CONTROL

Apply manufacturer'southward field services to verify proper installation of the arrangement. Areas that exercise not run into the minimum standards for application specified herein shall be corrected at the contractor'due south expense. Manufacturer'south inspection or verification shall not establish acceptance of responsibility for whatsoever improper application of material.

ii.06 CLEANING

Surfaces not to be coated shall be protected during the application of the organization. If protection is non feasible, surfaces shall exist restored to their proper condition by cleaning, repairing or replacing.
In conjunction with the concluding inspection, all debris, containers, materials and equipment are to be properly removed from the job site. Grounds are to exist cleaned undamaged and acceptable to the owner.
Dispose of all containers in accordance with state and local environmental regulations.
Reflectivity of coatings may exist reduced if roof surface is non cleaned regularly.

ii.07 PROTECTION

Command overspray particularly during windy conditions.
All parking areas adjacent to (within 75 anxiety) the piece of work area are to be cleared and roped off.
Protect work from impairment due to subsequent structure activeness on the site.
Roof coatings are not traffic grade. Areas surrounding roof top equipment may be reinforced by embedding PolyScrim fabric and applying a thicker membrane (40-50 mils). Walk pads should be used if frequent maintenance traffic is expected.