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At FUNAS, we are committed to delivering high-quality rubber foam insulation products that meet global standards. Our dedication to excellence is reflected in the certifications we have obtained, ensuring that our products comply with stringent safety, environmental, and performance regulations.

Rock wool blanket insulation installed on hot industrial piping in a processing plan - FUNAS
Which Rock Wool Blanket Specification Fits Hot Pipes, Tanks and Industrial Equipment?
Aug 29, 2026

Choosing a rock wool blanket for industrial insulation requires more than selecting a density and thickness from a product list. Project buyers should match the blanket specification to operating temperature, surface geometry, thermal requirements, protective system and documentation before requesting a quotation.

29
Aug
Which Rock Wool Blanket Specification Fits Hot Pipes, Tanks and Industrial Equipment?
Workers installing XPS insulation boards on a commercial construction project - FUNAS
XPS vs EPS vs PIR Insulation: When Should a Project Choose XPS?
Aug 29, 2026

XPS, EPS and PIR can all be specified as rigid insulation boards, but the project conditions that drive selection are different. This guide helps contractors, engineers and project buyers identify when moisture exposure, compressive loading and installation position make XPS the stronger fit.

29
Aug
XPS vs EPS vs PIR Insulation: When Should a Project Choose XPS?
HVAC technician installing self-adhesive rubber foam sheet on rectangular ductwork - FUNAS
Plain vs Self-Adhesive Rubber Foam Sheet for HVAC Ducts: What Buyers Should Specify
Aug 29, 2026

Plain and self-adhesive rubber foam sheets can both be specified for HVAC duct insulation, but they suit different project workflows and surface conditions. For contractors and procurement teams, the useful comparison is not which option is “better,” but which backing configuration matches the duct surface, project specification, installation method, and quotation requirements.

29
Aug
Plain vs Self-Adhesive Rubber Foam Sheet for HVAC Ducts: What Buyers Should Specify
Foil-faced elastomeric insulation on chilled water piping in an HVAC mechanical room - FUNAS
How Surface Emissivity Affects Condensation Calculations for Foil-Faced Elastomeric Insulation
Aug 28, 2026

Surface emissivity is one of the boundary conditions that can affect the calculated outer-surface temperature of insulation on chilled-water and refrigeration systems. When plain elastomeric insulation is changed to a foil-faced construction, engineers should verify the condensation calculation using the actual finished surface rather than assuming the previous result still applies.

28
Aug
How Surface Emissivity Affects Condensation Calculations for Foil-Faced Elastomeric Insulation
Glass wool duct insulation installed on commercial HVAC ductwork - FUNAS
Glass Wool Duct Insulation Specification Guide for HVAC Projects
Aug 27, 2026

A glass wool duct insulation specification should start with the duct service, installation position, operating conditions, and required performance rather than a density or thickness copied from another project. This guide shows HVAC engineers, contractors, and project buyers how to define product form, thickness, density, facing, and documentation so quotations and submittals can be compared on the same basis.

27
Aug
Glass Wool Duct Insulation Specification Guide for HVAC Projects
Technician testing black elastomeric insulation sheet in a materials laboratory - FUNAS
How to Insulate Chilled Water Valves, Flanges, and Strainers with Elastomeric Sheet
Aug 24, 2026

Valves, flanges, and strainers create more insulation joints and service interfaces than straight chilled-water piping. This guide explains how contractors can plan and fabricate elastomeric sheet insulation around these components while maintaining insulation continuity and preserving the access required for operation and maintenance.

24
Aug
How to Insulate Chilled Water Valves, Flanges, and Strainers with Elastomeric Sheet
Large-diameter chilled water pipe insulated with elastomeric sheet in a mechanical room - FUNAS
How to Insulate Large-Diameter Chilled Water Pipes with Elastomeric Sheet
Aug 24, 2026

Elastomeric sheet insulation is a practical option for large-diameter chilled-water pipes when field fabrication is more suitable than relying only on preformed tubes. This guide focuses on pipe measurement, sheet cutting, joint fabrication, multi-layer work, fittings, inspection, material takeoff, and the information buyers should prepare before ordering.

24
Aug
How to Insulate Large-Diameter Chilled Water Pipes with Elastomeric Sheet
Foil-faced elastomeric insulation installed on HVAC piping in a mechanical room - FUNAS
When Does Elastomeric Insulation Need Aluminum Foil Facing?
Aug 13, 2026

Aluminum foil facing is useful when elastomeric insulation needs additional surface protection, sunlight protection, a finished exterior, or a project-specified facing. This guide explains when foil-facing is worth specifying, how embossed and reinforced aluminum facings differ, and what HVAC and project buyers should confirm before ordering.

13
Aug
When Does Elastomeric Insulation Need Aluminum Foil Facing?
Chilled water pipe insulation with insulated support inserts and metal hangers in a commercial mechanical room - FUNAS
How Should Chilled Water Pipe Supports Be Insulated to Prevent Condensation?
Aug 05, 2026

Chilled water pipe supports often begin sweating before any moisture appears along the straight pipe run. The fault is usually local: direct metal contact, inadequate support insulation, a damaged transition or a joint that no longer keeps humid air away from the cold pipe. This guide covers the design, installation, inspection and repair of insulated supports for commercial HVAC piping.

05
Aug
How Should Chilled Water Pipe Supports Be Insulated to Prevent Condensation?
chilled-water-pipe-insulation-sweating-after-replacement - FUNAS
Why Is Chilled Water Pipe Insulation Still Sweating After Replacement?
Aug 03, 2026

Chilled water pipe insulation may begin sweating again when the replacement removes the visible damage but leaves hidden moisture, weak repair boundaries, or the original specification problem in place. This guide focuses on auditing a failed repair and deciding whether the next step should be another local patch, a wider replacement, or a revised insulation specification.

03
Aug
Why Is Chilled Water Pipe Insulation Still Sweating After Replacement?
rubber-foam-insulation-installation-mistakes-cover - FUNAS
7 Rubber Foam Insulation Installation Mistakes That Cause Condensation
Jul 17, 2026

Rubber foam insulation can still develop condensation when seams, fittings, supports or terminations are installed incorrectly. This guide identifies seven common installation mistakes, the failure patterns they create and the checks contractors should complete before chilled water system start-up.

17
Jul
7 Rubber Foam Insulation Installation Mistakes That Cause Condensation
insulation-thickness-hot-humid-conditions-cover - FUNAS
How to Choose Insulation Thickness for Hot and Humid Conditions
Jul 17, 2026

Insulation thickness for hot and humid conditions should be selected from dew point, service temperature, pipe size and verified material data rather than a standard thickness rule. This guide explains a practical calculation and procurement process for chilled water pipes, refrigerant lines, ducts and other cold surfaces exposed to high humidity.

17
Jul
How to Choose Insulation Thickness for Hot and Humid Conditions
Sweating chilled water pipe insulation around a valve and pipe support in an HVAC mechanical room - FUNAS
Why Is Chilled Water Pipe Insulation Sweating? Causes, Failure Points, and Solutions
Jul 17, 2026

chilled water pipe insulation thickness, insulation thickness for humid conditions, condensation control insulation thickness, dew point insulation calculation, rubber foam pipe insulation thickness, cold pipe insulation thickness

17
Jul
Why Is Chilled Water Pipe Insulation Sweating? Causes, Failure Points, and Solutions
Glass Wool Insulation for Energy-Saving Building and HVAC Projects - FUNAS
Glass Wool Insulation for Energy-Saving Building and HVAC Projects
Jul 07, 2026

Glass wool insulation can help reduce heat loss in buildings, HVAC ducts, roofs and industrial insulation projects when the right density, thickness and facing option are selected. This guide explains how glass wool supports energy-saving insulation design and what contractors, distributors and project buyers should confirm before bulk procurement.

07
Jul
Glass Wool Insulation for Energy-Saving Building and HVAC Projects
Glass Wool Roll vs Glass Wool Board - FUNAS
Glass Wool Roll vs Glass Wool Board: Which Is Better for HVAC and Building Insulation?
Jun 30, 2026

This guide compares glass wool roll and glass wool board for HVAC and building insulation projects. It explains where each product works better, how to choose by application, density, thickness, facing, installation method, and what contractors or project buyers should confirm before ordering.

30
Jun
Glass Wool Roll vs Glass Wool Board: Which Is Better for HVAC and Building Insulation?
XPS Insulation Board for Construction Projects Applications and Selection Guide - FUNAS
XPS Insulation Board for Construction Projects: Applications and Selection Guide
Jun 30, 2026

This guide explains how to choose XPS insulation board for construction projects, including common applications, thickness selection, board size, density, installation areas, procurement details, and what contractors or project buyers should confirm before ordering.

30
Jun
XPS Insulation Board for Construction Projects: Applications and Selection Guide
B1 rubber foam insulation, B2 rubber foam insulation, rubber foam insulation fire rating - FUNAS
B1 rubber foam insulation, B2 rubber foam insulation, rubber foam insulation fire rating
Jun 30, 2026

This guide explains the difference between B1 and B2 rubber foam insulation from a project buyer’s perspective. It covers fire performance requirements, product forms, test reports, sheet and pipe options, facing choices, and key details to confirm before ordering for HVAC, duct, pipe, and construction insulation projects.

30
Jun
B1 rubber foam insulation, B2 rubber foam insulation, rubber foam insulation fire rating
Insulation Material Procurement Checklist for Contractors and Distributors - FUNAS
Insulation Material Procurement Checklist for Contractors and Distributors
Jun 30, 2026

This procurement checklist helps contractors and distributors choose insulation materials for HVAC, building, and industrial projects. It covers application matching, product specifications, fire performance documents, facing options, packaging, accessories, supplier questions, and common purchasing mistakes to avoid.

30
Jun
Insulation Material Procurement Checklist for Contractors and Distributors
Rubber Foam Sheet vs Pipe Insulation Contractor Guide - FUNAS
Rubber Foam Sheet vs Pipe Insulation: Contractor Guide
Jun 30, 2026

This guide compares rubber foam sheet and rubber foam pipe insulation for HVAC ducts, chilled water pipes, refrigerant lines, and mechanical projects. It explains when contractors should choose sheet insulation, when pipe insulation is more suitable, and what to confirm before ordering.

30
Jun
Rubber Foam Sheet vs Pipe Insulation: Contractor Guide
How to Choose Rubber Foam Insulation for HVAC Ducts and Pipes - FUNAS
How to Choose Rubber Foam Insulation for HVAC Ducts and Pipes
Jun 30, 2026

Learn how to choose rubber foam insulation for HVAC ducts and pipes, including sheet vs pipe insulation, thickness selection, condensation control, foil-faced options, adhesive backing, and key points to confirm before bulk ordering.

30
Jun
How to Choose Rubber Foam Insulation for HVAC Ducts and Pipes

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