Specifications - State of Delaware

SECTION 072100 - THERMAL INSULATION: continued
9. Remove mortar droppings on brick ties, shelf angles, brick shelves and other horizontal
obstructions.
10. Fill honeycomb in concrete with non-shrink grout or fill compound.
11. Fill cracks in concrete and masonry exceeding 1/16-inch width and not exceeding
1/8-inch width with mastic.
12. Treat cracks in concrete and masonry exceeding 1/8-inch width and not exceeding
1/4-inch width with sheathing joint treatment.
13. Fill cracks, gaps and joints exceeding 1/4-inch width with tooled joint sealant over backer
rod.
14. Fill rough gaps around pipe, conduit and similar penetrations with mortar, non-shrink
grout or polyurethane foam.
15. Treat sheathing joints by filling with joint sealant and strike flush.
16. Prepare areas to receive transition membrane with contact adhesive. Contact adhesive
shall be provided at manufacturer's recommended coverage rate and visible for 1 inch
minimum beyond edge of installed transition membrane.
17. Install transition membrane according to manufacturer's instructions and drawings.
18. Apply transition membrane or reinforcing fabric encapsulated in roller-grade product
according to manufacturer's instructions and drawings in the following area: joints,
changes in plane, changes in substrate, window openings, and transitions to different
systems.
19. Transition membrane or reinforcing fabric shall bear 3 inches minimum onto dissimilar
substrates.
B. Installation:
1. Allow materials used during surface preparation to cure fully before applying product.
2. Spray-grade product: Dispense in tandem with co-spray according to manufacturer's
instructions.
3. Cured membrane thickness shall measure a minimum of 0.040 inch.
3.08 PROTECTION:
A. Protect installed insulation and vapor retarders from damage due to harmful weather
exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where
insulation is subject to abuse and cannot be concealed and protected by permanent construction
immediately after installation.
END OF SECTION 072100
DEAN072100.DOC 072100-7