Acrylic roof coatings are a popular choice for protecting and extending the life of flat or low-slope roofs due to their reflectivity and ease of application. However, seam failure is a common issue that can compromise the coating’s integrity. This usually happens because seams are weaker spots where different sections of roofing material meet, and improper surface preparation, poor application techniques, or extreme weather conditions can cause these areas to crack, peel, or delaminate. The acrylic coating can also shrink or become brittle over time if exposed to intense UV light or if applied too thickly, increasing the chance of seam failure. To check for this yourself, look closely at the seams for any signs of cracking, bubbling, or lifting, especially after a harsh winter or summer. Running your hand gently over the seam to feel for unevenness or softness can also help identify trouble spots. However, avoid walking on the roof if you're not sure of its condition or if it feels fragile, as this can cause further damage.
If you notice damage or suspect seam failure, it’s wise to call a professional roofer who specializes in acrylic coatings. A roofer can perform detailed evaluations, including moisture scanning under the coating, which a DIY check can’t manage. When talking to the contractor, ask specifically about their experience with acrylic coatings and if they use any reinforcement tapes or fabric at seams during repairs to improve durability. It’s also beneficial to inquire about how they handle warranty coverage—ensure their repair method won’t void any manufacturer or installer guarantees. This is important because improper fixes can create bigger problems or cost you coverage down the line. Doing your diagnostics and asking informed questions helps ensure the coating’s best performance and longevity, keeping your roof protected without unnecessary costs.