Features

Rethink Concrete Roof Sequencing - Build Sooner with SlopeShield Plus SA

SlopeShield Diagram WebImage 01 SlopeShield Plus SA gives contractors the flexibility they need with today's demanding schedules and labor-challenged market.

Benefits:

Apply as early as day-6 after a concrete pour or directly to damp concrete during reroofing
Prevents weather-related rewetting enabling early dry-in
Allows interior trades to safely begin BEFORE completing cure cycle
Eliminates curing calendar resets avoiding costly setbacks
Streamlines sequencing, protects the structure, keeps project moving
Saves time, labor, and expensive project setbacks

SlopeShield Icons Sidebyside 01

Green, Fresh Pour Structural Concrete

Install SlopeShield Plus SA over green concrete a minimum of 5 days after pour. Ensure the surface is dry to the touch and meets all the required preparation requirements published in the installation instructions.

Construct	Pour	Protect Roof Deck

Structural concrete roof preparation	Minimum 5-day cure time, apply SlopeShield Plus SA on day 6 or thereafter	Apply SlopeShield Plus SA to partially cured concrete, interior trades can begin

Lightweight Insulating Concrete

SlopeShield Plus SA can be applied to lightweight insulating concrete. Substrate preparation includes priming the surface with sodium silicate approximately two days after the pour to lock in free lime and stabilize the surface chemistry.

Construct	Pour/Prepare	Protect Roof Deck

Lightweight concrete roof preparation	Minimum 5-day cure time, prime within two days, apply SlopeShield Plus SA on day 6 or thereafter	Apply SlopeShield Plus SA to partially cured concrete, interior trades can begin

Advantages of SlopeShield Plus SA Over Concrete

SlopeShield Plus Concrete Roof Building Open 080425

VS Evergreen HS 11

Applying SlopeShield Plus SA on day-6 of the cure process:

Allows interior trades to begin work safely and sooner
Eliminates curing calendar resets to avoid costly project delays
Prevents weather-related rewetting and enables early dry-in

Upon full cure, following American Concrete Institute (ACI) guidelines, SlopeShield Plus SA creates a walkable surface with excellent traction and supports construction equipment

Reroof: Over High Moisture Content Concrete

SlopeShield Plus SA can be applied over existing concrete with high moisture content if the surface is dry to the touch. Applying SlopeShield Plus SA eliminates rewetting—even after rain—reducing schedule uncertainty and maintaining interior operations.

Remove	Protect	Remain Operational

Damp concrete is exposed	Apply SlopeShield Plus SA to high moisture content concrete	Concurrent drying and protection maintains project momentum

Cure Times and Installation Guidance

SlopeShield Plus SA does not accelerate the natural curing process of concrete; proper curing is still essential for substrate integrity and performance. While SlopeShield Plus SA protects the concrete from external moisture and allows internal vapor to escape, VaproShield recommends following American Concrete Institute (ACI) guidelines for cure time. This guideline aligns with industry standards to ensure optimal results.

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Concrete Roof Deck Protection Resources

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August 26, 2024

Time	Presentation	Speaker	Register
10:00am-10:50am EST	Apples to Oranges: The Impossibility of Comparing Advantages of Fluid-Applied Flashing Materials to their Alternatives	Guy Long
11:00am-11:50am EST	Through-Wall and Transition Membranes: Selection and Installation	Danielle Jackson
12:00pm-12:50pm EST	What Is High-Temperature?	Ben Meyer
1:00pm-1:50pm EST	The Big Disconnect: Roof to Wall Connections for your Air Barrier	Roy Schaffele
2:00pm-3:00pm EST	Project Experiences With (or Without) Flashings	Brian Stroik

Property	Test Method	2022 Standard (14 Tests)
Air Permeance	ASTM E2178
Apparent Core Density	ASTM D1622
Compressive Strength	ASTM D1621
Dimensional Stability at 28 days	ASTM D2126
Fungi Resistance	ASTM C1338
Gap Bridging - Declare gap width and temperature tested	ABAA 0004
Open Cell Content, Volume	ASTM D6226
Pull Adhesion	ABAA 0002
Surface Burning Characteristics	ASTM E84
Tensile Strength	ASTM D1623
Thermal Resistance for a 25-mm thick specimen	ASTM C518
Water Absorption by Volume	ASTM D2842
Water Resistance with a 55-cm head of water	AATCC 127
Water Vapor Transmission Rate for a 50-mm thick specimen - water and desiccant method	ASTM E96

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Conventional Reroof Practices


A typical low slope roof consists of a roof covering, insulation layer, and structural deck leading to trapped moisture within the roof assembly.	Conventional roofing practices call for the removal of the entire roof assembly which leads to disruptions for occupants and increased overall cost.

Reduce, Reuse, Renew

Reduce Capital Investment, Reuse Materials, Renew, and be Code Compliant


Tear off aged roof covering.	Install SlopeShield Plus SA allowing damp substrates to dry.	Work continues on reroofing with robust weather protection installed. Building remains occupied.	Install new insulation layer and roof covering.

How SlopeShield Plus SA Dries Damp Substrates

SlopeShield Plus SA Drying Animation

Proving Substrate Drying: Case Study

SlopeShield Plus SA allowed the double plywood roof deck to dry out over a period of approx. 45 days. The closed cell foam acted as a vapor barrier, negating any downward drying. Only upward moisture movement through SlopeShield Plus SA could take place.

View Entire Case Study

The Results

Reducing Captial Investment

Minimizing Occupant Disruption

Challenge: Reroof, reduce labor and capital investment, keep the terminal functional.

Solution: SlopeShield Plus SA allowed:

the terminal to remain open without a single leak
reuse of remaining roofing layers, drying damp materials below
heavy foot traffic and machinery on the roof during final PVC roof installation

These benefits reduced overall project costs for owners and contractors.

Challenge: Reroof overburdened vegetative green roof without displacing condo residents on two stories.

Solution: SlopeShield Plus SA allowed:

residents to remain in their condos during the entire reroof
highly saturated plywood and insulation layers to be dried out, reused and diverted from the landfill

Owners saved valuable HOA monies for additional improvement projects.

Code Compliance and Energy Efficiency


Meeting/Exceeding Standards: VaproShield products are meticulously engineered to meet and exceed the standards set forth in IECC and IBC. Our high-quality air barrier and permeable vapor retarder membranes safeguard compliance with these codes, guaranteeing the highest quality and adherence to the regulations.		Energy Efficiency: As a code compliant air barrier, SlopeShield Plus SA enhances energy efficiency in the roofing system by minimizing heat transfer and reducing reliance on the HVAC system, significantly contributing to energy savings for the life of the building.