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+1 855-733-7442
SIGA
1229 N. North Branch St.
Suite 310 Chicago, IL 60642
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SIGA
2355 Highway 36 West, Suite 400
Roseville, MN 55113
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SIGA. Your answer for creating an air and weathertight building envelope.

Popular products

Wigluv®

Single-sided, diffusible and rainproof high-performance adhesive tape for permanent windtight bonding of component layers outdoors.

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Majvest® 500 SA

A self-adhering, vapor permeable membrane with the reverse face coated by a pressure-sensitive glue for direct bonding to substrates.

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Majvest® 200

Diffusion-open, wind and rainproof facade membrane for permanent protection of the exterior wall.

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The Ultimate Guide to Window Flashing

Reduce the risk of building failure

Make sure water can't travel into your wall assembly by expertly flashing your window.

Download now

Attend a SIGA educational workshop

High performance building workshops

Get your learn on. SIGA offers AIA-accredited lunch and learns and Passive House building envelope hands on training.

Attend a workshop

Upcoming events:

Thurs, January 13, 2022
8:00 AM – 12:00 PM EDT

The airtightness workshop is a fresh look at the features of resilient and efficient envelope design that examines the key layers that comprise the fabric of the building, and how a well-planned weather, air, and vapor sealing strategy avoids risk and saves money.

Sign up for the workshop

Wed, February 2, 2022
9:00 AM – 1:00 PM EDT

The airtightness workshop is a fresh look at the features of resilient and efficient envelope design that examines the key layers that comprise the fabric of the building, and how a well-planned weather, air, and vapor sealing strategy avoids risk and saves money.

Sign up for the workshop

Tue, February 22, 2021
8:00 AM – 12:00 PM EST

The airtightness workshop is a fresh look at the features of resilient and efficient envelope design that examines the key layers that comprise the fabric of the building, and how a well-planned weather, air, and vapor sealing strategy avoids risk and saves money.

Sign up for the workshop

How to Achieve Perfect Air Barrier Sequencing

Know what to do and when to do it

Discover the 8 actions proven to improve your building's airtightness and net you a better ACH result.

Watch webinar

Sign up for jobsite training and reach your air and weathertight goals

Job site training

Receive on-site application training and technical support to ensure your SIGA products are installed correctly and fit the unique details of your job. 

Sign up for training

The Beginner's Guide to High-Performance Air Sealing

Avoid common rookie mistakes

Improve the airtightness of your building and receive a better ACH result by learning how to handle common details to create an airtight building envelope.

Watch webinar

Latest blog posts

Opinion: The Greater Good of Building Codes

The International Energy Conservation Code sets the benchmark for constructing better buildings. Recent trade industry influence is trying to remove the public’s voice from the process.

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Jobsite skills: 6 Tips to thrive in winter construction

Winter is here…

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SIGA announces North American availability of Wetguard® 200 SA

Building professionals benefit from superior moisture damage protection, abrasion resistance and transparent, non-slip qualities

Read now

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