THERMAL has not been left exposed to

THERMAL
INSULATION

 

Performance Requirements

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Insulation to incorporate
water repellent additive to provide robustness in drained and

if required ventilated
cavity conditions.

 

Quality Assurance

Surface-Burning
Characteristics: As determined by testing identical products according to BS
476 Part 7 by a qualified testing agency. Identify products with appropriate
markings of applicable testing agency.

 

Delivery, Storage and Handling

Protect insulation materials
from physical damage and from deterioration due to moisture, soiling, and other
sources. Store inside and in a dry location. Comply with manufacturer’s written
instructions for handling, storing, and protecting during installation.

 

Product

Thermal Insulation –
Foil-Faced, Mineral-Wool Board Insulation: BS-3958-5 ; faced

on one side with foil-scrim
or foil-scrim-polyethylene vapour retarder; with maximum

flame-spread and
smoke-developed indexes of 25 and 5, respectively, as per BS 476.Nominal
density of 4 lb/cu. ft. (64 kg/cu. m), Types IA and IB, thermal resistivity of 4
deg F x h x sq. ft./Btu x in. at 75 deg F (27.7 K x m/W at 24 deg C).

 

 

 

Insulation Fasteners

Adhesively Attached,
Spindle-Type Anchors: Plate welded to projecting spindle; capable of holding
insulation of specified thickness securely in position indicated with
self-locking washer in place.

1.    Plate:
Perforated, stainless steel sheet grade 316, 0.030 inch (0.762 mm) thick by 2
inches (50 mm) square.

2.    Spindle:
Stainless steel grade 316, ; 0.105 inch (2.67 mm) in diameter; length to suit depth
of insulation indicated.

Preparation for Insulation

Clean substrates of
substances that are harmful to insulation or vapour retarders, including removing
projections capable of puncturing vapour retarders, or that interfere with
insulation attachment.

Installation, General

1.    Comply
with insulation manufacturer’s written instructions applicable to products and applications
indicated.

2.    Install
insulation that is undamaged, dry, and unsoiled and that has not been left
exposed to ice, rain, or snow at any time.

3.    Extend
insulation to envelop entire area to be insulated. Cut and fit tightly around obstructions
and fill voids with insulation. Remove projections that interfere with placement.

Protection

Protect installed thermal insulation
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.

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