Final answer:
Tyvek home wrap seams should be overlapped by about 6 to 8 inches to ensure effective water resistance and energy efficiency.
Step-by-step explanation:
When installing Tyvek home wrap, the seams or overlaps from the second story to the first story should be approximately 6 to 8 inches. This ensures proper coverage and maximizes the material's effectiveness as a weather-resistant barrier. It's essential to overlap sufficiently to prevent water infiltration and improve the overall energy efficiency of the home.
Tyvek home wrap should be overlapped at seams, or from second story to the first story, approximately 4 to 6 inches.
Installation Steps:
Prepare the Surface: Ensure the surface is clean, dry, and free from any protrusions that might damage the wrap.
Start at the Bottom: Begin at the bottom of the wall and roll out the Tyvek horizontally. Overlap subsequent layers by 6 inches to create a weather-resistant barrier.
Cutting the Tyvek: Use a utility knife or scissors to cut the Tyvek to the desired length, ensuring it fits the wall properly.
Attach the Wrap: Secure the Tyvek to the sheathing using staples or cap nails. Install fasteners around the edges and at least every 12 to 18 inches vertically and horizontally.
Seal the Seams: Overlap adjacent sheets by at least 6 inches. Use Tyvek tape or compatible house wrap tape to seal the seams securely. Ensure there are no gaps or exposed areas.
Windows and Doors: Cut around windows, doors, and other openings carefully. Overlap the Tyvek around these areas and use tape to seal the edges tightly.
Utility Penetrations: Seal around utility penetrations like pipes and vents using appropriate flashing or sealant.
Inspect the Installation: Ensure the Tyvek is installed properly, without tears, gaps, or areas left exposed.