Windows/door/timber and steel frame flashings

• Masons Hydro Flashing Tape and Masons Corner Guard must be installed in accordance with these instructions. Ensure the Hydro Tape completely covers the joinery opening.
• To ensure maximum adhesion of the tape, make sure the substrate surface is clean, dry and free from any dust or other contaminants. Flaps are folded into the opening and secured.
• The building wrap is installed as shown to the exterior face of the frame. At window and door openings it is cut on a 45˚ angle away from each corner, then the flaps are folded into the opening and secured.
• Hydro Flashing Tape must not be stretched. When joining 2 sections of tape, overlap by 100mm or more. 

Note: 150mm wide tape is used for 100mm wide window or door framing. 200mm wide tape is used for 140mm - 150mm wide revels.

Masons Thermalcrete HYDRO Flashing Tape has been evaluated by Certmark as meeting the following provisions of the NZ Building Code:

• B2 Durability: B2.3.1(a) - not less than 50 years; and B2.3.2
• E2 External Moisture: E2.3.2
• F2 Hazardous Building Materials: F2.3.1

• Has been tested and passed by CodeMark for a risk score between 0-20 in accordance with NZBC Acceptable Solution E2/AS1.
• Passed NZS3604 Building Wind Zones up to and including ‘Very High’.