Labor is excluded.
Damage to the interior of a building, nor property damage nor personal injury, regardless of their source or cause for any reason including fire, whether or not fire-resistant additive was applied. Claims under this warranty must be made in writing to us within 30 days of the end of the five-year warranty period. The owner shall provide us with the right to examine the wood surfaces and to obtain samples thereof for a period of not less than 30 days following receipt of the warranty claim by us and prior to the commencement of any repair work or re-treatment.