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Data Sheet
Elastospray HPS - 5100

Dow Spec

BASF Polyurethanes Spry Info
Sheet 1
Sheet 2
Sheet 3

  SPF Built-up Single-PLY
Weather Protection

- Water can not migrate through closed cell foam
- Less ponding
- High wind uplift resistance
- No deck penetration

- joints and seams allow water migration
- Leaks hard to locate
- Loose aggregate can become projectilles
- Ponding frequent
- Leaks hard to locate
-Several deck penetrations
Energy and Comfort

- Lower heating and cooling costs
- No thermal bridging
- Highest R value insulation
- Lower roof tempertures, reducing thermal stress
- Reflects solar radiation
- improved occupant comfort

- Temperature build-up on roof
- Indoor envirment more difficult to condition
- Temperature build-up on roof
- Indoor envirment more difficult to condition

- Uesally no costly tear-off
- Conforms to irregular shapes, can be custom sloped
- Fully adheres to almost any substrate
- No fasteners, no welding, no gluing
- Lower labor cosr

- Major construction
- Tear-off and waste disposal required
- Irregular shapes difficult
- Joints unreliable
- Expensive labor
- Irregular shapes difficult
- Fasteners expensive
- Potential leakage points
Maintenance and Repair's

- Minor maintenance
- Renewable with simple recoats
- Simplified flashing and details

- Major reconstruction needed
- Costly and frequent
- Non-renewable
- Must be torn off at end of life cycle

Basic Layout

Step 1: Deck Preparation All loose gravel, dirt and debris are removed and disposed of. any blister's, splits or other defects in substrate are repaired.
Step 2: Foam Insulation A seamless blanket of three pound density polyurethane foam is spray-applied to the properly prepared, dry deck. The foam is installed to a minimum thickness of one inch, with additional thinkness used in low spots or where additional insulation is desired.
Step 3: Silicone Membrane The silicone coating is spray-applied in two separate contrasting color coats at a minimum thickness of 15 dry mils.
Step 4: Roofing Granules An optional layer of ceramic coated roofing granules may be applied in the topcoat befor it cures. The roofing granules are used to enhance aesthetics, minimize dirt pick-up/discoloration, provide a non-skid surface, increase foot traffic resistance or may be required to meet U.L. Class A requirements at steeper slopes on certain urethane foams.