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Better Homes and Gardens Magazine Brand Licensing Partners:
By Heather Sheraden
Silicone caulk provides an exceptional airtight and watertight seal to keep warm air inside the home. Because it's not water based, there's minimal shrinking or cracking. Water-based acrylic caulk may shrink up to 25 percent, leaving cracks and gaps for air and water to move through.
GE Silicone II Window & Door Caulk
Approximate retail cost: $5 per tube
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