Meir Roofing » Insulation

Cork

vespon — Mon, 22 Feb 2010 09:15:23 +0000

Is a well established and proven insulation material formed from pure granulated cork, compressed, steam baked and held together by the natural cork gum. It is widely used as a heat resistant and stable facing to rigid urethane insulation to form a composite insulation, is resistant to moisture and decay and is suitable for use above high humidity conditions.

It provides a substrate of good laminar and compressive strength suitable for asphalt roofing and with its low coefficient of thermal expansion will accept a full bonded built-up roofing specification. Although cork is somewhat friable during handling it is firm under foot traffic and is a suitable insulation to use below membranes which are subject to continual foot traffic, but an underlay may be required to provide support over the troughs of metal decking. For general handling strength, a minimum 25mm thickness is recommended.

Cut-To-Falls

admin — Mon, 23 Feb 2009 09:35:19 +0000

The tapered roof system is installed on flat roof decks and is designed to provide a positive slope to facilitate roof drainage avoid ponding. We offer survey, design, fabrication and supply of tapered roof insulation schemes which provide tailored and bespoke solutions to flat roofs whilst taking into consideration current regulations and cost/ budget criteria. Available in Rigid Polyurethane and Polyisocyranate, Extruded Polystyrene XPS, Expanded Polystyrene EPS, Cork and Cork Composites, Rock-Mineral Fibre, Foamglass.

Why choose tapered (cut to falls) roof insulation?

A Flat roof should never be truly flat! The objective of tapered roof insulation systems is to reduce or eliminate the amount of standing water on the membrane where the roof deck does not provide adequate slope. Ponding water can have an adverse effect on the waterproofing membrane and add excess weight to the structural deck, make routine maintenance more difficult and possibly more dangerous. A correctly designed tapered roof insulation system not only provides the positive drainage needed, but also helps extend the life of the roof membrane. The provision of a fall within a warm deck flat roof is normally achieved in one of three ways; tapered insulation, utilising timber firings under a plywood base or by laying a screed to falls.

Independent studies have assessed both the cost and speed of each type of installation and found that tapered insulation proves to be:

Less costly to install

Quicker to install – estimated drying times for sand and cement screed to falls systems are in the region of 100 days plus after which the insulation and waterproofing need to be installed.

Estimated installation times for a tapered insulation systems and the waterproofing membrane are between 50 – 150m² per day (dependant upon deck type and fixing method).

Reduced Weight – standard sand: cement screed weighs approximately 2000kg/m³. Tapered insulation systems varying dependant upon insulant type; e.g. Rigid PIR – 32kg/m³, Rock Mineral Fibre – up to 180kg/m³. Tapered insulation therefore offers a huge benefit in the reduced additional weight added to the structure.

Is more suitable for complex fall configurations – timber Firings can be complex to install when cross falls are required with the potential of condensation risk within voids formed by the firrings. Additionally with tapered insulation the required fall can be achieved and the necessary thermal insulation is provided in ‘one-go’.

Extruded Polystyrene / Inverted Roofing

admin — Mon, 09 Feb 2009 10:56:31 +0000

Having good thermal insulation, low water absorption and high compressive strength the product is flame-retardant, reduces thermal stress and saves heating and cooling energy. It is suitable for a number of applications including walls, floors, and car park.

The insulation will offer a much warmer environment, without an overuse of electricity or gas. Making it ideal for saving money on the bills, as well as reducing carbon emissions.

Foam Glass

admin — Mon, 09 Feb 2009 11:05:37 +0000

Cellular glass which is totally impermeable to water and water vapour, non combustible, has high compressive strength, dimensionally stable, resistant to attack by birds and vermin and is environmentally friendly. Suitable for roofs, floors, and walls and is available in cut to falls.

All insulation products help keep warmer working/living conditions whilst reducing the cost of gas and/or electricity. This means they help save you money, as well as doing it’s part for the environment.

Hemp Natural Insulation

vespon — Tue, 06 Oct 2009 12:01:48 +0000

Thermo-Hemp® is a high-quality product distinguished by its excellent technical qualities according to the effectivenorms. The European Technical Approval was issued by the German Institute for Constructional Engineering in Berlin under the registration number ETA-05/0037.

The subject “healthy living” is becoming more and more important. Many people do not feel well and have allergies – caused by materials used in their own house.
It does not have to be like this. Therefore, one should pay attention to corresponding labels and a competent consultation, when buying building materials and interior decorations.

The branded insulation Thermo-Hemp® is recommended for “healthy living” by doctors and construction biologists of the Society of Hygiene and Environmental Sciences. The full declaration of all ingredients ensures transparency for sustainable consumer protection.

Brochure

European Technical Approval

Mineral Wool

admin — Mon, 23 Feb 2009 09:55:42 +0000

Insulation boards with various facings bonded to one side to control the surface absorption of bitumen, offering fire resistance and excellent compressive and interlaminar strengths. It is available in flat and cut to falls systems.

Perlite

admin — Mon, 23 Feb 2009 10:30:20 +0000

A naturally occurring volcanic rock formed on cooling, when molten magna comes into contact with water. When crushed and expanded, Perlite has the following characteristics: is incombustible, thermally insulating, chemically neutral and rot proof whilst being ecologically friendly. It is used extensively where fire protection or high compressive strength is required.

Polystyrene

vespon — Tue, 16 Jun 2009 11:48:56 +0000

Factory bonded with layer of heavy duty glass fibre roofing felt the board offers low thermal transmittance, is versatile, rot proof, easy to handle and cost effective when used as an insulation in warm deck flat roof construction.

Pur-Pir

admin — Mon, 09 Feb 2009 11:29:45 +0000

Environmentally friendly polyurethane boards with a selection of facings for differing waterproofing systems, flat, composite or profiled boards and cut to falls to ensure that all requirements are satisfied.

S.A.M.E Reflective Insulation

vespon — Tue, 16 Jun 2009 10:19:37 +0000

AlumTech is a radiant insulation for application on both flat and pich roofs. It is made of two layers of air bubble polythylene, wedge-welded for a width of 15mm and covered by a film of low emission aluminium on both sides. The materials used to make AlumTech are absolutely safe, non-toxic and non-harmful.

Reflective thermal insulation blocks up to 97% of the radiant heat transfer across thin open spaces whatever the humidity, which prevents heat gain in summer and heat loss in winter, in addition aluminium foil creates an effective barrier against moisture and air flow, in addition to being a reflective material and is a permanent way to reduce your energy bills which can be over 30% repaying initial installation costs in no time. It is light, easy to handle and can be laid quickly.

BENEFITS:
* Heat and light reflective
* less bulky
* light in weight
* flexible material
* could save money on fuel bills
* low installation cost (DIY)
* delivered direct to your door (next working day in most cases)

USES:
* Dry Lining
* Cavity wall Insulation
* Roof Insulation
* Under floorboards for added insulation
* Stud walls
* Lining of green houses
* Sheds
* Summer houses
* Kids play houses
* Caravans – static and touring
* Barn and loft conversion
* Chicken and animal housing

Technical Sheet: Alumtech

IsoLiving is a radiant insulation for use in the air spaces of inside and outside walls. It consists of two layers of bubble polyethylene and two layers of low emission aluminium film, continously thermowelded. The materials used to make IsoLiving are absolutely safe. non-toxic and non-harmful.

Technical Sheet:Isoliving

ThermoLiving is a radiant insulation for use on floors that provides a significant reduction of footstep noise. The materials used to make ThermoLiving are absolutely safe. non-toxic and non-harmful.

Technical Sheet:Thermoliving

Questions and answers
1. What is a reflective insulating material? It’s a thin layer covered on both sides by a low emission aluminium film
2. How does it works? It can reflect the heat that it irradiated through the walls and roof of a building.
3. How is it fixed? With a batten or planking to create a 2 cm cavity from the wall. Because it is a semi rigid roll it is easy to cut and shape without loose ends associated with other products. It can be fixed by one person with the minimum of specialist tools.
4. Why do I have to leave a gap? Reflection is possible only through empty space or air. An air chamber is necessary to avoid the opposite effect of heat conduction.
5. How can I assess your product’s performance? It is assessed through thermal resistance in the insulation system (the product and two air chambers). Another important characteristic is emissivity, which is the surface’s ability to release radiant energy. The lower the emissivity is, the higher the reflecting power. It has many independent test certificates including the National Physical Laboratory. The certification includes heat transference, fire and sound results.
6. How can I compare your performance with other products’? Through thermal resistence: in mass insulating material it is the s/ ratio. In this case it was measured through a hot slab. The product has many independent test certificates including the National Physical Laboratory. The certification includes heat transference, fire and sound results.
7. What thickness of traditional material corresponds to your standard? Considering the average conductivity in fibrous material (0,04 W/mK), our product corresponds to approssimately 6 cms.
8. Are aluminium and polyethylene toxic? Both of them are non-toxic, and they are also employed in the food industry. No adhesive is employed in the manufacturing process.
9. If I place two different layers of your material, will the insulating effect double? Our material operates by reflection, so the thickness is not relevant. All that is necessary is to create an air gap close to the aluminium layer. To put more layers would be not improve performance.
10. I know aluminium can reflect the light, but how can it possibly work on the inner skin of a wall, where there is no direct lighting? In the inner gap of a wall there is no direct lighting but there is heat, which is spread through convection and irradiation. Convection is limited because the air gap between the wall and the reflecting insulating material is quite thin.
11. Why do I need an aluminium tape? The aluminium tape provides a continuous surface in the junction of two adjacent sheets, in order to avoid thermal or acoustic gap.
12. Am I likely to have trouble with mobile phone reception if I use your material? The aluminiun we use is very thin; it cannot block the electromagnetic waves that allow phone reception. In addition, the way our material is laid doesn’t allow the charge to accumulate, so the electrical system can operate normally.
13. How much can I save using your material instead of another? It depends on the building’s characteristics. We tried it on a 200 sqm house, and all the papers related are available for download from our website(see downloads).
14. It is likely to have condensation? Aluminium is laid on both sides of the insulation material, so that it blocks the formation of steam. This can be judged either in a positive or negative way. Anyway the extent of transpiration of a brick structure is about 3 to 5%. The permeability of the insulating material is not relevant because some change of air is necessary in order to get as suitable lever of moisture and comfort.
15. Does your product have Fire certification? Our material is certified as CLASS 1. We have independent test results which can be downloaded from ourwebsite (see downloads).
16.Do I need to install a waterproof membrane in addition to your insulation? Aluminium is 100% waterproof. In many parts of Europe the insulation is used as the waterproofing. We would suggest that you need to check with your local building control.
17. Can I use your product with floor heating? We supply THERMOLIVING 3B, which is ideal for floor heating, it also resists compression. The insulation is installed under the heating tube so as to reflect the heat it produces.
18. What do I need to install your product? Installing the flooring product, THERMOLIVING3B, it is necessary to have stripes that must be installed along the perimeter walls and air bubbled polyethylene tape to joint the sheets.Installing the wall and roof insulations,ISOLIVING and ALUMTECH,need battens to create an air gap of approximately 2 cms. These can be wood or biadhesive expanded PE foam, which we will supply. You also need aluminium tape to seal the joints.
19. Can your product protect us from radon? Radon is a radioactive, carcinogenic gas emitted by the soil, especially in volcanic areas. Installing THERMOLIVING3B under the floor blocks radon and provides protection from its effects.
20.Where can your product be purchased? Our items are available at our head office and authorized distributors. Contacting us is easy, by phone, e-mail or using the PREVENTIVES link on our web-site.
21. Does the product conform to current legislation? The products have independently tested by numerous laboratories for heat transmission, fire transference and sound deadening properties. The laboratories include the National Physical Laboratory who is UKAS approved.The product has been used on many prestigious projects throghout Europe and the UK. Copies of the certification can be obtained from our website or by phone. Our technical department will advise on any specific or unusual requirements.

Questions and answers

1. What is a reflective insulating material?
It’s a thin layer covered on both sides by a low emission aluminium film

2. How does it works?
It can reflect the heat that it irradiated through the walls and roof of a building.

3. How is it fixed?
With a batten or planking to create a 2 cm cavity from the wall. Because it is a semi rigid roll it is easy to cut and shape without loose ends associated with other products. It can be fixed by one person with the minimum of specialist tools.

4. Why do I have to leave a gap?
Reflection is possible only through empty space or air. An air chamber is necessary to avoid the opposite effect of heat conduction.

5. How can I assess your product’s performance?
It is assessed through thermal resistance in the insulation system (the product and two air chambers). Another important characteristic is emissivity, which is the surface’s ability to release radiant energy. The lower the emissivity is, the higher the reflecting power. It has many independent test certificates including the National Physical Laboratory. The certification includes heat transference, fire and sound results.

6. How can I compare your performance with other products’?
Through thermal resistence: in mass insulating material it is the s/ ratio. In this case it was measured through a hot slab. The product has many independent test certificates including the National Physical Laboratory. The certification includes heat transference, fire and sound results.

7. What thickness of traditional material corresponds to your standard?
Considering the average conductivity in fibrous material (0,04 W/mK), our product corresponds to approssimately 6 cms.

8. Are aluminium and polyethylene toxic?
Both of them are non-toxic, and they are also employed in the food industry. No adhesive is employed in the manufacturing process.

9. If I place two different layers of your material, will the insulating effect double?
Our material operates by reflection, so the thickness is not relevant. All that is necessary is to create an air gap close to the aluminium layer. To put more layers would be not improve performance.

10. I know aluminium can reflect the light, but how can it possibly work on the inner skin of a wall, where there is no direct lighting?
In the inner gap of a wall there is no direct lighting but there is heat, which is spread through convection and irradiation. Convection is limited because the air gap between the wall and the reflecting insulating material is quite thin.

11. Why do I need an aluminium tape?
The aluminium tape provides a continuous surface in the junction of two adjacent sheets, in order to avoid thermal or acoustic gap.

12. Am I likely to have trouble with mobile phone reception if I use your material?
The aluminiun we use is very thin; it cannot block the electromagnetic waves that allow phone reception. In addition, the way our material is laid doesn’t allow the charge to accumulate, so the electrical system can operate normally.

13. How much can I save using your material instead of another?
It depends on the building’s characteristics. We tried it on a 200 sqm house, and all the papers related are available for download from our website(see downloads).

14. It is likely to have condensation?
Aluminium is laid on both sides of the insulation material, so that it blocks the formation of steam. This can be judged either in a positive or negative way. Anyway the extent of transpiration of a brick structure is about 3 to 5%. The permeability of the insulating material is not relevant because some change of air is necessary in order to get as suitable lever of moisture and comfort.

15. Does your product have Fire certification?
Our material is certified as CLASS 1. We have independent test results which can be downloaded from ourwebsite (see downloads).

16.Do I need to install a waterproof membrane in addition to your insulation?
Aluminium is 100% waterproof. In many parts of Europe the insulation is used as the waterproofing. We would suggest that you need to check with your local building control.

17. Can I use your product with floor heating?
We supply THERMOLIVING 3B, which is ideal for floor heating, it also resists compression. The insulation is installed under the heating tube so as to reflect the heat it produces.

18. What do I need to install your product?
Installing the flooring product, THERMOLIVING3B, it is necessary to have stripes that must be installed along the perimeter walls and air bubbled polyethylene tape to joint the sheets.Installing the wall and roof insulations,ISOLIVING and ALUMTECH,need battens to create an air gap of approximately 2 cms. These can be wood or biadhesive expanded PE foam, which we will supply. You also need aluminium tape to seal the joints.

19. Can your product protect us from radon?
Radon is a radioactive, carcinogenic gas emitted by the soil, especially in volcanic areas. Installing THERMOLIVING3B under the floor blocks radon and provides protection from its effects.

20.Where can your product be purchased?
Our items are available at our head office and authorized distributors. Contacting us is easy, by phone, e-mail or using the PREVENTIVES link on our web-site.

21. Does the product conform to current legislation?
The products have independently tested by numerous laboratories for heat transmission, fire transference and sound deadening properties. The laboratories include the National Physical Laboratory who is UKAS approved.The product has been used on many prestigious projects throghout Europe and the UK. Copies of the certification can be obtained from our website or by phone. Our technical department will advise on any specific or unusual requirements.

Woodfibre Board

vespon — Fri, 19 Feb 2010 15:43:45 +0000

Has good compressive and laminar strength and a very low coefficient of thermal expansion is used as a low cost heat protection facing for insulation material, is a low cost overlay board for re-roofing and provides a satisfactory base for mastic asphalt waterproofing or fully bonded built-up roofing, but it is vulnerable to decay if it becomes damp and moisture absorption can cause significant movement and may cause ridging of the waterproofing over the joints. It is no longer widely used as insulation because it has insufficient performance for modern requirements.