Wisam Tanmiyah CompanyWisam Tanmiyah CompanyWaterproofing & Insulation Division
Roof & thermal insulation

Thermal insulation in Riyadh

With summer roof surfaces above 70 °C, an uninsulated roof is a permanent heat source for the rooms below. The right thermal insulation cuts that source and eases the AC from the very first summer.

  • Free site inspection
  • Warranty up to 15 years
  • Photo-documented work
XPS thermal boards over the waterproofing layer
Overview

What you should know about thermal insulation

Thermal insulation is a high-resistance layer on the roof or walls that slows heat moving from outside to inside. In Riyadh, where temperatures exceed 45 °C for months, it is one of the fastest-payback investments in a building.

Each system has its place: spray foam for large and metal roofs because it also waterproofs; XPS boards as an economical option in inverted roofs under tiles; reflective coatings for small roofs or as a supplementary layer. We choose after inspecting the roof and understanding how the building is used.

Where it fits

Hot top floors

Ceilings hot to the touch and AC running non-stop.

High electricity bills

Lower cooling load shows up directly on the bill.

Warehouses and factories

Better temperature control for goods and workers.

Buildings under construction

Better thermal performance from the start, at lower cost.

Method

How we install it, step by step

  1. 1

    Assessment

    Roof type, sun exposure, building use and savings target.

  2. 2

    System & thickness

    Foam, boards or coating, at the thickness that meets the goal.

  3. 3

    Preparation

    Cleaning and crack repair; waterproofing first if there is a leak problem.

  4. 4

    Application

    A continuous thermal layer without thermal bridges.

  5. 5

    Protection & handover

    The right protection layer, documentation and handover.

Technical data

Technical specifications

Typical values from approved manufacturers' data sheets, final systems and thicknesses are confirmed after the site survey.

XPS boards30 – 100 mm, 30–40 kg/m³
XPS conductivity0.029 – 0.034 W/m·K
XPS compressive strength200 – 500 kPa
XPS water absorption< 0.7%
Uninsulated roofU ≈ 3.10 W/m²·K
100 mm PU foamU ≈ 0.21. meets SBC 601
Our work

Real photos from our sites

Foam on an industrial metal roof
Pricing

What determines the price?

We price after inspection because these factors vary by site, our quotation lists each item explicitly.

  • Selected system (foam, boards, coating).
  • Thickness required to meet the savings target.
  • Area and roof condition.
  • Whether waterproofing is needed first.

Request a written quotation

We inspect your site and send a quotation stating the system, thickness, preparation and warranty line by line.

FAQ

Frequently asked questions

Can an existing building be insulated?

Yes. Foam or reflective coatings are applied directly to the existing roof; boards require lifting the tiles.

When will I see savings?

From the first summer month after installation.

Is a reflective coating a substitute for foam?

Reflective coatings lower surface temperature but do not provide foam's thermal resistance, we recommend them for small roofs or as a supplement.

Free inspection

Book a free inspection for thermal insulation

Call us, message us on WhatsApp or fill in the form, our team will schedule an inspection and send a written quotation.

Request a free inspection

Our team will contact you to schedule the inspection and send a written quotation.

Your details are only used to contact you about this request.

Call us +966563290978