Stucco Lite Soffit
Exterior / Interior Commercial Soffit Finishing System
Description

Stucco Lite Soffit is a non-insulated soffit finishing system suitable for canopies, through-ways, balconies, large overhangs.   Specifically designed to economically facilitate the finishing of overhead soffits while controlling and preventing vapour diffusion into the adjacent soffit structure. The system consists of a cementitious trowel applied moisture barrier coating glass fibre reinforcing mesh, topped with base coats, and a finish texture coat which can be selected from any one of the available Durex® Architectural Coatings.

Advantages
  • Excellent moisture resistance
  • Cost effective solution
  • Allows for use of a wide variety of finish textures
  • Applicable to a multitude of substrates
Uses

Stucco Lite Soffit system can be used for new and restoration work and is an effective solution for commercial and residential construction. It is highly recommended for use for interior and exterior soffit and protected overhead applications. 

Performance Properties
Building Code Conformance

Classification

Category 1

CAN/ULC S114 (Monobase) & Uniplast

 

Noncombustible stucco cladding

Part 3

  • Article 3.1.5.2
  • Article 3.2.3.7 & Table 3.2.3.7
  • Allowable Minor Combustible Components
  • 0-10% Unprotected Openings

Part 5

  • Section 5.6.1
  • Sub-Section 5.6.2.1
  • Protection from Precipitation
  • Sealing and Drainage

Part 9

  • Clause 9.27.1.1(5)
  • Section 9.27.2
  • Article 9.27.3.1
  • Article 9.10.14.5 & Table 9.10.14.5 (A)
  • Article 9.10.15.5
  • General (Cladding, Application)
  • Required Protection from Precipitation
  • Elements of Second Plane of Protection
  • 0-10% Unprotected Openings
  • <0.6 m Limiting Distance
SUBSTRATE:

- Cementitious Backer Board

- Glass Mat Gypsum Sheathing

- Concrete

ASTM C1325

ASTM C1177

12.7 mm (1/2”) min.

12.7 mm (1/2”) min

WATER RESISTIVE BARRIER:

Air / Vapour Barriers

(consult with a Durabond Representative)

Air Barriers

  Durex Flexcrete

ASTM E96  Water Vapour Transmission

(Refer to product specific Technical

Data Sheet for more detailed data)

Method A                         Method B

n/a                                    n/a      

 

400 ng/Pa.s.m2                     972 ng/Pa.s.m2              

REINFORCEMENT:

Impant Resistance

Durex Fiberglass Mesh

(Note: Impact resistance level is directly related

to the weight and layers of Fiberglass mesh

used in the lamina)

 

ASTM E2486 – Impact Resistance

                     Retention    Retention         

                     Physical      Performance

Standard      3N.m            10 N.m         PASS

Intermediate 8 N.m           15 N.m         PASS

BASE COAT:

- Durex Flexcrete or

- Durex Monobase

- Durex Uniplast / Acrybond “S”

 

CAN/ULC S114

CAN/ULC S114

 

Rated noncombustible

Rated noncombustible

FASTENERS:

-Durex “M” fasteners (masonry)

-Durex “W” fasteners (wood)

-Durex “S” fasteners (steel)

ASTM B-117 – salt spray

DIN 50012 - SO2 exposure

FM4470

DIN 50018 SFW

750 hrs. or better

25+ cycles

30 cycles

Pass

FINISHES:

Durex Architectural  Coatings

   Classic Series

   Premium Series

   Artisan Series

   Kolor Gard Series

   Elastomeric (FX) Series

 

CAN/ULC S716.1   &

CCMC Report #  13103-R

(Refer to product specific Technical Data

Sheet and CCMC Evaluation Report

#13103-R for more detailed data)

 

Durex Architectural Coatings

Meet and exceed all requirements

 

PERFORMANCE:

    Water Vapour  Transmission

ASTM E96 - Flexcrete

400 ng/Pa.s.m2 (7.0 perms) method A

972 ng/Pa.s.m2 (17.0 perms) method B

Water absorption

ASTM D570

4.85%   (Flexcrete )

Coefficient of Water Absorption

CCMC 5.5.1

0.0007 kg/(m2.s1/2)

System Layer Optional Products Per Layer Notes
Water Resistive Barriers (WRB)
Optional
Reinforcing Mesh
 
 
 
 
 
Base Coat
 
 
Primers
 
Finishes - Classic Series
 
 
 
 
 
 
 
 
 
Finishes - Premium Series
 
 
 
 
 
 
Finishes - Artisan Series
 
 
 
 
 
 
 
 
Finishes - Flexible Series
 
 
 
 
 
 
Finishes - Kolor Gard