A vapor permeable membrane with long-term UV resistance, Henry^® Air-Bloc All Weather STPE^®  is a single-component, moisture cure Silyl Terminated Polyether (STPE) water-resistive air barrier. Featuring a high solids content and quick cure time, Air-Bloc All Weather STPE^®  can be applied with rain in the forecast, helping to reduce job-site weather delays. Its hydrophobic nature also means it won’t wash off in the rain. Plus, it can be spray-, roller- or brush-applied.  Air-Bloc All Weather STPE^®  is part of the Air-Bloc^® portfolio of fluid applied air barriers within the Henry^® Building Envelope Systems^® family.

Features and benefits

• Rain ready within 30 minutes, helping to reduce job-site weather delays
• Can be exposed for up to 12 months during construction, providing scheduling flexibility
• Permanent UV exposure behind open-joint cladding offers design flexibility
• Can be used as a liquid flashing when Air-Bloc All Weather STPE is the primary membrane, resulting in quicker air barrier system installation (Passes AMAA 714-19. See Installation Manual and Technical Data Sheet for details.)
• Vapor permeable membrane allows walls to breathe
• Sprayable, one-coat application and high coverage rate for a faster, quicker installation
• Vertical and lateral flame propagation: meets NFPA 285 Exception #2 per ASTM E1354 and ASTM E84

Sizes available:

• 5 gallon (18.82 L) pails
• 55 gallon (205 L) drums

Color:

• Black

Complete the system

Blueskin^® Metal Clad^®

Blueskin^® Butyl Flash

Henry^® 925 BES Sealant

Air-Bloc^® LF Liquid-Applied Flashing

Literature

Submittal Packet: Air-Bloc All Weather STPE^®

Air-Bloc All Weather STPE^® Sell Sheet

Commercial Air Barrier Systems Brochure

Commercial Air Barrier Systems Selection Chart

Air-Bloc All Weather STPE^® Declare Label

ABAA Air Barrier Material Evaluated Certificate

Henry Commercial MasterFormat Product Organizer

Inflation Reduction Act Summary for Commercial Buildings

Inflation Reduction Act ASHRAE 90.1 White Paper

5 Quick Tips for Air Barrier Selection

How to Chose the Right Air Barrier for Your Next Project

2021 IBC and IECC Changes Affecting Air and Water Barriers

• Installation and Technical Literature

  Air-Bloc All Weather STPE® Data Sheet  

  Air-Bloc All Weather STPE® SDS Sheet  

  Air-Bloc All Weather STPE® Installation Manual  

  Air-Bloc All Weather STPE® Health Product Declaration  

  Air-Bloc All Weather STPE® Product Certification  

• Specifications

  Air-Bloc All Weather STPE^® Fluid Applied Vapor Permeable Air Barrier Guide Specification  

• Architectural Details

  ABSTPE-1A Wall Foundation Slab Below Grade

  ABSTPE-1B Wall Foundation Slab on Grade

  ABSTPE-1C Wall Foundation Transition No Brick Ledge

  ABSTPE-2A Pipe Penetration 0.5 Inch Wide Gap Max

  ABSTPE-2B Pipe Penetration 0.75 Inch Wide Gap Max

  ABSTPE-3A-1 Inside and Outside Corners

  ABSTPE-3A-2 Inside and Outside Corners

  ABSTPE-3B Inside and Outside Corners

  ABSTPE-3C Typical Soffit

  ABSTPE-4A Substrate Transition

  ABSTPE-4B Substrate Transition

  ABSTPE-4C Substrate Transition

  ABSTPE-5A Thru-Wall Flashing

  ABSTPE-6-A1 Non-Flanged Window Section

  ABSTPE-6-A2 Non-Flanged Window Sequence Installation

  ABSTPE-6A-A Flanged Window Section Method A

  ABSTPE-6A-C Flanged Window Sequence Installation Method A

  ABSTPE-6C Door Frame Section

  ABSTPE-6A1-A Flanged Window Section Method A1

  ABSTPE-6A1-C Flanged Window Window Sequence Installation Method A1

  ABSTPE-6B-A Non-Flanged Window Section Method B

  ABSTPE-6B-C Non-Flanged Window Sequence Installation Method B

  ABSTPE-6B1-A Non-Flanged Window Section Method B1

  ABSTPE-6B1-C Non-Flanged Window Sequence Installation Method B1

  ABSTPE-7A1 Reverse Lap

  ABSTPE-7A2 Reverse Lap

  ABSTPE-8A Construction Joints 0.5 Inch Gap Max

  ABSTPE-8B1 Construction Joints 1 Inch Gap Max

  ABSTPE-8C1 Construction Joints 2 Inch Gap Max

  ABSTPE-8DA Deflection Joint

  ABSTPE-8E Cracks 0.5 Inch Gap Max

  ABSTPE-9A Roofing Wrapping Parapet

  ABSTPE-9B Air Barrier Transition at Parapet

  ABSTPE-TID1A Air-Bloc All Weather STPE transition with 790-11

  ABSTPE-TID1B Air-Bloc All Weather STPE transition with 790-11

  ABSTPE-TID1C Air-Bloc All Weather STPE transition with 790-11

  ABSTPE-TID2A Air-Bloc All Weather STPE transition with CM100

  ABSTPE-TID2B Air-Bloc All Weather STPE transition with CM100

  ABSTPE-TID3A Air-Bloc All Weather STPE transition with Pumadeq System

  ABSTPE-TID4A Air-Bloc All Weather STPE transition with single ply roofing

  ABSTPE-TID4B Air-Bloc All Weather STPE transition with single ply roofing

  ABSTPE-TID5A Air-Bloc All Weather STPE transition with Blueskin WP200

• Tech-Talks

  Henry^® Air Barrier Assemblies Meet ASTM E2357

  NFPA 285 Assemblies

  Henry Air Barriers NFPA 285 Exception 2

  Henry^® Living Building Challenge Red List

  Henry Air Barrier and Waterproofing Membranes Earn Living Building Challenge Declare "Red List Free" Status

  Fastener Penetrations through Air Barrier Membranes

• LEED Declarations

  Air-Bloc All Weather STPE^® LEED Certification

• Videos

  Features & Benefits

  General spray application

  Treating sheathing joints

  Customer testimonial

  Air-Bloc All Weather STPE^® Fluid Applied Vapor Permeable Air Barrier (General spray application, treating sheathing joints and a customer testimonial)

  Henry Air Barriers that meet IBC NFPA 285 Exceptions

Tools