Langley HM-40 Paratech Hot Melt Roofing System
Verified by manufacturer 5 months ago
BBA Agrément Certificate
Certificate type
Flexible monolithic, elastomeric waterproofing system.
Application
Suitable for use in new build projects, where a protected membrane or green roof system is required, including:
- Flat roofs (including 'zero falls');
- Protected roofs;
- Green roofs;
- Terraces;
- Podium decks.
Primarily used for concrete substrates, but can also be used on plywood and for a warm (inverted) or cold roof configuration. Protection can be either in the form of polystyrene insulation (warm roof), round washed pebbles, paving/ podium or a green roof system.
Applied via fully-bonded, hot-melt application.
Description
Flexible, monolithic, elastomeric hot-melt bitumen waterproofing system for protected roofs, green roofs, terraces and podium decks.
Features and benefits:
- Only a single application is required.
- Robust and durable.
- Flexible.
- Root resistant when specified as a green roof (Graviflex (HM) cap sheet).
- Self-healing.
- Reinforced with a coated glass mesh for alkaline protection.
- Permanently elastomeric.
- Life expectancy for the service life of the roof in which it is incorporated.
- Quick and easy to install - large areas can be covered quickly.
- BBA certified.
Components:
- Preparation: Langley Primer (HM).
- Waterproof covering, first layer: Paratech R Reinforcement (0.11 kg/m²).
- Waterproof covering, intermediate layer: Paratech HM (3–5 kg/m²).
- Protective covering, top layer: Paradiene 35 SR4 HM or Graviflex (HM), (4.4–4.6 kg/m²).
General information
Color | Grey Guidance for specification option: Dark grey. |
Finish | Textured |
Material | Bitumen |
Shape | Rectangle Guidance for specification option: Can be cut to any shape. |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | 40 year Guidance for specification option: Materials and workmanship. |
Uniclass | |
CAWS | J41/110 Built-up reinforced bitumen membrane warm deck roof covering J41/12 Reinforced bitumen membrane cold deck roof covering J41/120 Built-up reinforced bitumen membrane inverted roof covering J41/130 Built-up reinforced bitumen membrane cold deck roof covering |
Product range |
Specification data - Hot-applied polymer-modified bitumen waterproof coatings
Third party certification | BBA Certificate. |
Colour | Dark grey. |
Horizontal work | Langley Primer (HM). |
Preparation Skirtings And Vertical Work | Langley Primer (HM). |
First layer | Paratech R Reinforcement (0.11 kg/m²). |
Intermediate layer | Paratech HM (3–5 kg/m²). |
Top layer | Paradiene 35 SR4 HM or Graviflex (HM), (4.4–4.6 kg/m²). |
Surface protection | Graviflex (HM). Paradiene 35 SR4 (HM). |
Weight | 7.51–7.71 kg/m². |
Elongation | 45% (maximum). Guidance for specification option: To BS EN 12311-1. |
Impact resistance | 1000 mm. Guidance for specification option: To EN 12691-A. |
Puncture resistance | 20 kg. Guidance for specification option: Static puncture resistance (to EN 12730-B). |
TensileStrength | 550 N/50 mm. Guidance for specification option: (to BS EN 12311-1). |
Overall thickness | 7–8 mm (approximately). |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 Revit | Revit 2017 | 1 |
 IFC | - | 1 |
Third party certifications
BBA Agrément Certificate
Paratech BBA
Case studies
Blackhorse Lane