

REINFORCED ROOF UNDERLAYMENT - HIGH TEMPERATURE LASTOBOND SMOOTH SEAL HT
This roofing underlayment is a self-adhesive membrane composed of elastomeric bitumen. This non-slip, flexible, self-sealing membrane can be used in outdoor temperatures ranging from -49 °F to 240 °F (-45 °C to 115 °C). It is a high-performance roof underlayment perfect for metal roofing and meeting the requirements of Miami Dade County (NOA 18-0329.03) and of Florida building code: FL2569.
Benefits
- Anti-slip surface
- Self-sealing around nails and screws
- Meets ASTM D1970 standard
- Can also be used under shingle roof
Tests and certifications






Properties
Function
Roofing
Product roles
Roofing Underlayments
Building Component
Roofs
Technology
SBS modified bitumen
Characteristics
Types of Slope
Outside low slope
Type of covering
- Asphalt shingles
- Metal roofing
Substrates
- Plywood
- OSB
- Asphaltic panel
Surface
Non-woven polypropylene
Underface
Silicone release film
Reinforcement
Glass mat
Application
Self-adhesive
Service temperature
-40 to 115 °C (-49 to 240 °F)
Thickness
47 mils (1.2 mm)
UV exposure
60 days
Instructions
Storage instructions
Rolls should be stored upright, tape side up, protected from weather damage and UV rays. If the products are stored outdoors, cover them with an opaque protective cover after removing the delivery packaging. Can withstand freezing but must be reactivated to at least 10 ° C (50 °F) before installation.
Minimum application temperature
41 °F (5 °C)
Tools required
- Knife
- Tape measure
- Smoothing roller
Surface Preparation
The substrate must be clean, dry, and free of dust, grease or other contaminants.
Restrictions
It is not recommended to use a product containing bitumen directly on softwood boards or flexible polyvinyl chloride. Check that the membrane is not dusty, wet or frosted to maintain its slip resistance.
Previous identity


Conditioning
Products
Product code
Width
Length
Gross area
Net area
Weight
Weight per skid
HIGH TEMPERATURE ROOF UNDERLAYMENT LASTOBOND SMOOTH SEAL HT
Product code
00959
Width
36 in (0.91 m)
Length
65 ft (19.8 m)
Gross area
195.00 ft² (18.0 m²)
Net area
172 ft² (15.9 m²)
Weight
51 lb (23 kg)
Weight per skid
1,129 lb (513.25 kg)
Without box
Palletization
Products
Barcodes
Product code
Units per skid
Weight per skid
HIGH TEMPERATURE ROOF UNDERLAYMENT LASTOBOND SMOOTH SEAL HT
Barcodes
8 86442 00959 3
Product code
00959
Units per skid
36
Weight per skid
1,129 lb (513.25 kg)