Is mechanical attachment of EIFS recommended to resist high wind loads?
In general, adhesive attachment of the EIFS sound supporting construction provides superior wind load resistance in comparison to mechanical attachment. It is important in an adhesively attached system that the supporting construction is sound-free of surface damage, defects or contamination, and, in the case of sheathing substrates, that they are attached with fasteners. Fastener spacing must be capable of resisting wind loads. It is recommended that mechanical fastenings of the insulation to the substrate only be considered where adhesive attachment cannot be used.
